Precipitation device for town sewage treatment and use method thereof

Abstract

The invention discloses a precipitation device for town sewage treatment and a using method thereof.The precipitation device comprises a main body unit, a feeding mechanism and a stirring mechanism, the main body unit comprises a precipitation box, the upper end of the precipitation box is fixedly connected with a treatment box, and the upper end of the treatment box is fixedly connected with a water inlet pipe; the sewage treatment device has the beneficial effects that through the arrangement of a first valve plate, a first water control plate, a second valve plate and a second water control plate, the water passing state of a first communicating pipe and a second communicating pipe is controlled, so that sewage is continuously introduced, and meanwhile, the water passing state of the first communicating pipe and the water passing state of the second communicating pipe are controlled; a flocculating agent is added into sewage through the feeding mechanism, oxygen is introduced into the sewage, the flocculating agent and the oxygen are fully mixed with the sewage through the stirring mechanism, the sewage can be settled immediately after entering the settling tank, sewage treatment steps are reduced, operation is simple, a large amount of time and manpower are saved, and the sewage treatment efficiency is improved. Therefore, the overall efficiency of sewage precipitation treatment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a sedimentation device for urban sewage treatment and a use method thereof. Background Art

[0002] Urban residents need a lot of water in the process of production and life, which will also produce a large amount of sewage. In order to avoid wasting water resources, it is necessary to precipitate and recycle urban sewage.

[0003] One challenge we face with current wastewater treatment methods is that the process is relatively complex and time-consuming, even though it effectively removes most impurities from wastewater. Specifically, the traditional method involves multiple steps such as wastewater entering a sedimentation tank, metering and adding flocculants, stirring and aerating to promote impurity coagulation, followed by sedimentation and filtration. This series of operations is not only cumbersome, but also consumes a lot of time and manpower, thus restricting the overall efficiency of wastewater sedimentation treatment.

[0004] Therefore, a sedimentation device for urban sewage treatment and a method of using the same are needed to solve the above problems. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the above-mentioned problems of a sedimentation device for urban sewage treatment and its use method, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide a sedimentation device for urban sewage treatment and a method of use thereof, which is used to solve the problem that "the traditional method involves multiple steps such as sewage entering the sedimentation tank, metering and adding flocculants, stirring and aerating to promote impurity coagulation, subsequent sedimentation and filtration. This series of operations is not only cumbersome, but also consumes a lot of time and manpower, thereby restricting the overall efficiency of sewage sedimentation treatment."

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: A sedimentation device for urban sewage treatment, comprising:

[0009] A main unit, the main unit comprises a sedimentation box, the upper end of the sedimentation box is fixedly connected to a treatment box, the upper end of the treatment box is fixedly connected to a water inlet pipe, a partition and a guide plate are fixedly installed on the inner wall of the treatment box, the lower ends of the partition and the guide plate are respectively fixedly connected to a No. 1 connecting pipe and a No. 2 connecting pipe, a No. 1 water control plate and a No. 2 water control plate are respectively fixedly installed on the inner walls of the No. 1 connecting pipe and the No. 2 connecting pipe, water inlet holes of 1 / 8 and 1 / 4 of the circumference are respectively opened on the No. 1 water control plate and the No. 2 water control plate, the upper ends of the No. 1 water control plate and the No. 2 water control plate are respectively rotatably connected to a No. 1 valve plate and a No. 2 valve plate, valve holes of 1 / 4 of the circumference are opened on the No. 1 valve plate and the No. 2 valve plate, a central shaft is fixedly inserted at the center of the No. 1 valve plate and the No. 2 valve plate, an impeller is fixedly installed on the upper end of the central shaft, and a filter assembly is fixedly installed in the treatment box;

[0010] A feeding mechanism, the feeding mechanism comprises a cam and two straight cylinders, the cam is fixedly sleeved on the central axis, each of the straight cylinders is fixedly connected to the inner wall of the processing box, a piston plate is slidably connected to the inner wall of each straight cylinder, a push rod is fixedly connected to one side of each piston plate, a rotating wheel is fixedly installed on the other end of each push rod, and a return spring is sleeved on each push rod;

[0011] The stirring mechanism includes a driving gear, which is fixedly sleeved on the central shaft, and a plurality of driven gears are meshed and connected with each other at equal intervals. A rotating rod is fixedly inserted through the center of each driven gear, and a plurality of stirring blades are fixedly connected with each other at equal intervals on the side wall of each rotating rod.

[0012] As a preferred embodiment of the sedimentation device for urban sewage treatment described in the present invention, the filter assembly includes an arcuate filter plate and a connecting sleeve, the arcuate filter plate is fixedly mounted on the inner wall of the treatment box, the connecting sleeve is fixedly sleeved on the central axis, a plurality of cleaning brushes are symmetrically fixedly connected to the side wall of the connecting sleeve, and the central axis is rotatably connected to the inner wall of the arcuate filter plate.

[0013] As a preferred embodiment of the sedimentation device for urban sewage treatment described in the present invention, the filtering assembly further comprises an annular box, which is fixedly mounted on the treatment box, and is connected to the interior of the treatment box through a plurality of discharge holes, and a plurality of feeding ports are evenly spaced at the upper end of the annular box.

[0014] As a preferred embodiment of the sedimentation device for urban sewage treatment described in the present invention, a liquid storage tank and an oxygen tank are fixedly connected to the side wall of the treatment box, and the liquid storage tank and the oxygen tank are connected to the straight cylinder through a connecting pipe, and a liquid inlet check valve and an air inlet check valve are respectively fixedly installed in the two connecting pipes.

[0015] As a preferred embodiment of the sedimentation device for urban sewage treatment described in the present invention, the feeding mechanism also includes an annular discharge pipe, two feed pipes are fixedly connected to the side wall of the annular discharge pipe, the other ends of the two feed pipes are connected to the interior of the straight cylinder, a liquid outlet one-way valve and an air outlet one-way valve are fixedly installed in the two feed pipes, respectively, and a plurality of nozzles are fixedly installed at equal intervals on the annular discharge pipe.

[0016] As a preferred solution of the sedimentation device for urban sewage treatment described in the present invention, one end of each of the push rods passes through the side wall of the straight cylinder and is slidably connected to the inner wall of the straight cylinder, and both ends of the multiple return springs are respectively fixedly connected to the rotating wheel and the side wall of the straight cylinder.

[0017] As a preferred embodiment of the sedimentation device for urban sewage treatment described in the present invention, the lower ends of the plurality of rotating rods are rotatably connected to the upper end of the guide plate, and the plurality of stirring blades are provided with a plurality of stirring holes at equal intervals.

[0018] As a preferred embodiment of the sedimentation device for urban sewage treatment described in the present invention, the lower end of the No. 2 connecting pipe passes through the upper end of the sedimentation tank and is connected to the interior of the sedimentation tank, and a plurality of discharge pipes are fixedly connected to the side wall of the sedimentation tank.

[0019] As a preferred embodiment of the sedimentation device for urban sewage treatment described in the present invention, the No. 1 valve plate and the No. 2 valve plate are rotatably connected to the inner walls of the No. 1 connecting pipe and the No. 2 connecting pipe respectively.

[0020] The present invention further provides a precipitation method for treating urban sewage, which uses the above-mentioned precipitation device for treating urban sewage, and comprises the following steps:

[0021] S1, sewage is added into the treatment box through the water inlet pipe, and drives the impeller to rotate, and the solid waste in the sewage is filtered through the arc filter plate. The cleaning brush is driven by the central axis to rotate and clean the solid waste on the arc filter plate, so that it slides into the annular box;

[0022] S2, the impeller rotates and drives the center shaft to rotate, and drives the No. 1 valve plate and the No. 2 valve plate to rotate through the center shaft. When the valve hole coincides with the water inlet hole, the sewage passes through the No. 1 connecting pipe and the No. 2 connecting pipe. At this time, it is in the water-passing state, otherwise it is in the closed state;

[0023] In S3 and S2, when the No. 1 connecting pipe is in a critical water flow state, the No. 2 connecting pipe is in a just closed state, and at this time, the sewage flows into the top of the guide plate through the No. 1 connecting pipe;

[0024] S4, when the No. 1 valve plate and the No. 2 valve plate rotate clockwise by 135°, the No. 1 connecting pipe is in a just-closed state, and continues to rotate clockwise by 45°, the No. 2 connecting pipe is in a critical water flow state. During this process, the cam and the driving gear are driven to rotate by the central shaft, and the two rotating wheels are squeezed in sequence by the cam, and the piston plate is driven to move by the rotating wheel and the push rod, and the flocculant and oxygen in the straight cylinder are respectively squeezed into the annular discharge pipe, and then sprayed out through the nozzle; at the same time, the stirring blade is driven to rotate by the setting of the driving gear, the driven gear and the rotating rod to stir the sewage;

[0025] S5, when the No. 1 valve plate and the No. 2 valve plate continue to rotate 180° clockwise, the No. 1 connecting pipe is in a critical water flow state, and the No. 2 connecting pipe is in a just closed state. During this process, the continuously introduced sewage is temporarily stored above the partition, and the sewage that has been added above the guide plate flows into the sedimentation tank through the No. 2 connecting pipe for sedimentation.

[0026] S6, repeating the steps of S4 and S5, while ensuring the continuous introduction of sewage, adding flocculant and introducing oxygen into the sewage through the feeding mechanism, and fully mixing the flocculant and oxygen with the sewage through the stirring mechanism.

[0027] Beneficial effects of the present invention:

[0028] 1. The solid waste in the sewage is filtered through the arc filter plate. The cleaning brush is driven by the impeller and the central shaft to rotate and clean the solid waste on the arc filter plate, so that it slides into the annular box to avoid clogging the arc filter plate;

[0029] 2. The driving gear, driven gear and rotating rod are used to drive the stirring blade to rotate, stir the sewage, and fully mix the sewage with the flocculant and oxygen, thereby improving the efficiency and effect of sewage treatment;

[0030] 3. The cam and the driving gear are driven to rotate through the central shaft, and the two rotating wheels are squeezed in turn through the cam. The piston plate is driven to move through the rotating wheels and the push rod, and the flocculant and oxygen in the straight cylinder are squeezed into the annular discharge pipe respectively, and then sprayed out through the nozzle to realize automatic feeding;

[0031] 4. The water flow status of No. 1 connecting pipe and No. 2 connecting pipe is controlled by setting No. 1 valve plate, No. 1 water control plate, No. 2 valve plate and No. 2 water control plate, so that while ensuring the continuous flow of sewage, flocculant is added to the sewage and oxygen is introduced through the feeding mechanism, and the flocculant and oxygen are fully mixed with the sewage through the stirring mechanism. The sewage can be precipitated immediately after entering the sedimentation tank, which reduces the steps of sewage treatment. The operation is not only simple, but also saves a lot of time and manpower, thereby improving the overall efficiency of sewage sedimentation treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0033] Figure 1 It is a schematic diagram of the front structure of a sedimentation device for treating urban sewage according to the present invention.

[0034] Figure 2 The present invention is a schematic cross-sectional structural diagram of a treatment box in a sedimentation device for treating urban sewage.

[0035] Figure 3 It is a schematic structural diagram of an arc-shaped filter plate in a sedimentation device for treating urban sewage according to the present invention.

[0036] Figure 4 The present invention is a schematic structural diagram of a feeding mechanism in a sedimentation device for treating urban sewage.

[0037] Figure 5 The present invention is a schematic diagram of the structure of a valve plate No. 1 in a sedimentation device for treating urban sewage.

[0038] Figure 6 It is a structural schematic diagram of a No. 1 water control plate in a sedimentation device for urban sewage treatment according to the present invention.

[0039] Figure 7 The present invention is a schematic diagram of the top view of the structure of an annular discharge pipe in a sedimentation device for treating urban sewage.

[0040] Figure 8 The present invention is a schematic structural diagram of a critical water flow state of a No. 1 connecting pipe in a sedimentation device for treating urban sewage.

[0041] Fig. 9 It is a structural schematic diagram of a No. 1 connecting pipe in a sedimentation device for urban sewage treatment of the present invention in a state of just closing.

[0042] Fig.10 The present invention is a schematic structural diagram of a critical water flow state of a No. 2 connecting pipe in a sedimentation device for treating urban sewage.

[0043] Description of the drawings: 100, main unit; 101, sedimentation box; 102, treatment box; 103, water inlet pipe; 104, partition; 105, guide plate; 106, No. 1 connecting pipe; 107, No. 2 connecting pipe; 108, No. 1 valve plate; 109, No. 1 water control plate; 110, No. 2 valve plate; 111, No. 2 water control plate; 112, impeller; 113, arc filter plate; 114, cleaning brush; 115, ring box; 1 16. Liquid storage tank; 117. Oxygen tank; 118. Central axis; 200. Feeding mechanism; 201. Cam; 202. Straight cylinder; 203. Piston plate; 204. Push rod; 205. Rotating wheel; 206. Return spring; 207. Feeding pipe; 208. Annular discharge pipe; 209. Nozzle; 300. Stirring mechanism; 301. Driving gear; 302. Driven gear; 303. Rotating rod; 304. Stirring blade. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0046] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0047] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0048] Embodiment 1

[0049] Reference Figure 1-Figure 10 , as one embodiment of the present invention, provides a sedimentation device for urban sewage treatment, which comprises:

[0050] The main unit 100 includes a sedimentation tank 101, the upper end of the sedimentation tank 101 is fixedly connected to a treatment tank 102, the upper end of the treatment tank 102 is fixedly connected to a water inlet pipe 103, a partition 104 and a guide plate 105 are fixedly installed on the inner wall of the treatment tank 102, and the lower ends of the partition 104 and the guide plate 105 are respectively fixedly connected to a No. 1 connecting pipe 106 and a No. 2 connecting pipe 107. A first water control plate 109 and a second water control plate 111 are fixedly mounted on the inner walls of the No. 6 and No. 2 connecting pipes 107, respectively. The first water control plate 109 and the second water control plate 111 are respectively provided with water inlet holes of 1 / 8 and 1 / 4 of the circumference. The upper ends of the first water control plate 109 and the second water control plate 111 are rotatably connected to the first valve plate 108 and the second valve plate 110, respectively. A valve hole of 1 / 4 of the circumference is provided, a central shaft 118 is fixedly inserted at the center of the No. 1 valve plate 108 and the No. 2 valve plate 110, an impeller 112 is fixedly installed on the upper end of the central shaft 118, and a filter assembly is fixedly installed in the treatment box 102. The water flow state of the No. 1 connecting pipe 106 and the No. 2 connecting pipe 107 is controlled by the arrangement of the No. 1 valve plate 108, the No. 1 water control plate 109, the No. 2 valve plate 110 and the No. 2 water control plate 111, so that while ensuring the continuous flow of sewage, flocculants are added to the sewage and oxygen is introduced through the feeding mechanism 200, and the flocculants and oxygen are fully mixed with the sewage through the stirring mechanism 300. After the sewage enters the sedimentation box 101, it can be immediately precipitated, which reduces the steps of sewage treatment. The operation is not only simple, but also saves a lot of time and manpower, thereby improving the overall efficiency of sewage sedimentation treatment;

[0051] The feeding mechanism 200 includes a cam 201 and two straight cylinders 202. The cam 201 is fixedly sleeved on the central shaft 118. Each straight cylinder 202 is fixedly connected to the inner wall of the processing box 102. A piston plate 203 is slidably connected to the inner wall of each straight cylinder 202. A push rod 204 is fixedly connected to one side of each piston plate 203. A rotating wheel 205 is fixedly installed on the other end of each push rod 204. A return spring 206 is sleeved on each push rod 204. The cam 201 and the driving gear 301 are driven to rotate through the central shaft 118. The two rotating wheels 205 are squeezed in turn by the cam 201. The piston plate 203 is driven to move by the rotating wheel 205 and the push rod 204, and the flocculant and oxygen in the straight cylinder 202 are squeezed into the annular discharge pipe 208 respectively, and then sprayed out through the nozzle 209 to realize automatic feeding.

[0052] The stirring mechanism 300 includes a driving gear 301, which is fixedly sleeved on the central shaft 118. A plurality of driven gears 302 are meshed and connected at equal intervals on the driving gear 301. A rotating rod 303 is fixedly inserted at the center of each driven gear 302. A plurality of stirring blades 304 are fixedly connected at equal intervals on the side wall of each rotating rod 303. The stirring blades 304 are driven to rotate by the arrangement of the driving gear 301, the driven gear 302 and the rotating rod 303 to stir the sewage, so that the sewage is fully mixed with the flocculant and oxygen, thereby improving the efficiency and effect of sewage treatment.

[0053] Among them, the filtering assembly includes an arc-shaped filter plate 113 and a connecting sleeve. The arc-shaped filter plate 113 is fixedly installed on the inner wall of the processing box 102. The connecting sleeves are fixedly sleeved on the central shaft 118. A plurality of cleaning brushes 114 are symmetrically and fixedly connected to the side wall of the connecting sleeve. The central shaft 118 is rotatably connected to the inner wall of the arc-shaped filter plate 113. The solid waste in the sewage is filtered and processed by the arc-shaped filter plate 113. The cleaning brush 114 is driven to rotate by the impeller 112 and the central shaft 118 to clean the solid waste on the arc-shaped filter plate 113 and make it slide into the annular box 115 to avoid clogging of the arc-shaped filter plate 113.

[0054] Among them, the filtering component also includes an annular box 115, which is fixedly mounted on the processing box 102. The annular box 115 is connected to the inside of the processing box 102 through multiple discharge holes. Multiple material collection ports are evenly spaced at the upper end of the annular box 115. Solid waste is collected in the annular box 115 and taken out through the material collection ports.

[0055] Among them, a liquid storage tank 116 and an oxygen tank 117 are fixedly connected to the side wall of the treatment box 102. The liquid storage tank 116 and the oxygen tank 117 are connected to the straight cylinder 202 through a connecting pipe. A liquid inlet check valve and an air inlet check valve are fixedly installed in the two connecting pipes respectively. The flocculant is stored through the liquid storage tank 116, and oxygen circulation is carried out through the oxygen tank 117.

[0056] Among them, the feeding mechanism 200 also includes an annular discharge pipe 208, and two feed pipes 207 are fixedly connected to the side wall of the annular discharge pipe 208. The other ends of the two feed pipes 207 are connected to the interior of the straight cylinder 202. A liquid outlet one-way valve and a gas outlet one-way valve are fixedly installed in the two feed pipes 207 respectively. A plurality of nozzles 209 are fixedly installed at equal intervals on the annular discharge pipe 208, and flocculants and oxygen are sprayed out through the nozzles 209.

[0057] Among them, one end of multiple push rods 204 passes through the side wall of the straight cylinder 202 and is slidably connected to the inner wall of the straight cylinder 202, and the two ends of multiple reset springs 206 are respectively fixedly connected to the rotating wheel 205 and the side wall of the straight cylinder 202. The setting of the reset spring 206 plays a role in resetting the piston plate 203.

[0058] The lower ends of the plurality of rotating rods 303 are rotatably connected to the upper end of the guide plate 105, and the plurality of stirring blades 304 are provided with a plurality of stirring holes at equal intervals, so that the stirring effect is improved by the arrangement of the stirring holes.

[0059] Among them, the lower end of the No. 2 connecting pipe 107 passes through the upper end of the sedimentation tank 101 and is connected to the inside of the sedimentation tank 101. A plurality of discharge pipes are fixedly connected to the side wall of the sedimentation tank 101. The sewage after adding the material flows into the sedimentation tank 101 through the No. 2 connecting pipe 107 for sedimentation.

[0060] Among them, the No. 1 valve plate 108 and the No. 2 valve plate 110 are rotatably connected to the inner walls of the No. 1 connecting pipe 106 and the No. 2 connecting pipe 107 respectively, and the water flow status of the No. 1 connecting pipe 106 and the No. 2 connecting pipe 107 is controlled by the No. 1 valve plate 108 and the No. 2 valve plate 110 respectively.

[0061] Embodiment 2

[0062] A precipitation method for treating urban sewage, based on the first embodiment, comprises the following steps:

[0063] S1, sewage is added into the treatment box 102 through the water inlet pipe 103, and drives the impeller 112 to rotate, and the solid waste in the sewage is filtered through the arc filter plate 113, and the cleaning brush 114 is driven to rotate through the central shaft 118 to clean the solid waste on the arc filter plate 113, so that it slides into the annular box 115;

[0064] S2, the impeller 112 rotates and drives the central shaft 118 to rotate, and drives the No. 1 valve plate 108 and the No. 2 valve plate 110 to rotate through the central shaft 118. When the valve hole coincides with the water inlet hole, the sewage passes through the No. 1 connecting pipe 106 and the No. 2 connecting pipe 107. At this time, it is in the water-passing state, otherwise it is in the closed state;

[0065] In S3 and S2, when the No. 1 connecting pipe 106 is in a critical water flow state, refer to the attached manual. Figure 8 , the No. 2 connecting pipe 107 is in a just-closed state, and at this time, the sewage flows into the top of the guide plate 105 through the No. 1 connecting pipe 106;

[0066] S4, when the No. 1 valve plate 108 and the No. 2 valve plate 110 rotate 135° clockwise, refer to the attached manual Fig. 9At this time, the No. 1 connecting pipe 106 is in a just closed state, and continues to rotate 45° clockwise. Fig.10 At this time, the No. 2 connecting pipe 107 is in a critical water flow state. During this process, the cam 201 and the driving gear 301 are driven to rotate through the central shaft 118, and the two rotating wheels 205 are squeezed in sequence through the cam 201. The piston plate 203 is driven to move through the rotating wheel 205 and the push rod 204, and the flocculant and oxygen in the straight cylinder 202 are squeezed into the annular discharge pipe 208 respectively, and then sprayed out through the nozzle 209; at the same time, the stirring blade 304 is driven to rotate through the setting of the driving gear 301, the driven gear 302 and the rotating rod 303 to stir the sewage;

[0067] S5, when the No. 1 valve plate 108 and the No. 2 valve plate 110 continue to rotate 180° clockwise, the No. 1 connecting pipe 106 is in a critical water flow state, and the No. 2 connecting pipe 107 is in a just closed state. During this process, the continuously introduced sewage is temporarily stored above the partition 104, and the sewage that has been added above the guide plate 105 flows into the sedimentation tank 101 through the No. 2 connecting pipe 107 for sedimentation.

[0068] S6, repeating steps S4 and S5, while ensuring continuous introduction of sewage, adding flocculant and introducing oxygen into the sewage through the feeding mechanism 200, and fully mixing the flocculant and oxygen with the sewage through the stirring mechanism 300.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A sedimentation device for urban sewage treatment, characterized in that: include: A main unit (100), the main unit (100) comprising a sedimentation box (101), the upper end of the sedimentation box (101) being fixedly connected to a treatment box (102), the upper end of the treatment box (102) being fixedly connected to a water inlet pipe (103), a partition plate (104) and a guide plate (105) being fixedly installed on the inner wall of the treatment box (102), a first connecting pipe (106) and a second connecting pipe (107) being fixedly connected to the lower ends of the partition plate (104) and the guide plate (105), respectively, a first water control plate (109) and a second water control plate (111) being fixedly installed on the inner walls of the first connecting pipe (106) and the second connecting pipe (107), respectively. ), the first water control plate (109) and the second water control plate (111) are respectively provided with water inlet holes of 1 / 8 and 1 / 4 of the circumference, the upper ends of the first water control plate (109) and the second water control plate (111) are rotatably connected to the first valve plate (108) and the second valve plate (110), respectively, the first valve plate (108) and the second valve plate (110) are both provided with valve holes of 1 / 4 of the circumference, a central shaft (118) is fixedly inserted at the center of the first valve plate (108) and the second valve plate (110), an impeller (112) is fixedly installed at the upper end of the central shaft (118), and a filter assembly is fixedly installed in the processing box (102); A feeding mechanism (200), the feeding mechanism (200) comprising a cam (201) and two straight cylinders (202), the cam (201) being fixedly sleeved on the central shaft (118), each of the straight cylinders (202) being fixedly connected to the inner wall of the processing box (102), a piston plate (203) being slidably connected to the inner wall of each of the straight cylinders (202), a push rod (204) being fixedly connected to one side of each of the piston plates (203), a rotating wheel (205) being fixedly mounted on the other end of each of the push rods (204), and a return spring (206) being sleeved on each of the push rods (204); The stirring mechanism (300) comprises a driving gear (301), the driving gear (301) is fixedly sleeved on a central shaft (118), a plurality of driven gears (302) are meshed and connected at equal intervals on the driving gear (301), a rotating rod (303) is fixedly inserted at the center of each driven gear (302), and a plurality of stirring blades (304) are fixedly connected at equal intervals on the side wall of each rotating rod (303).

2. A sedimentation device for urban sewage treatment according to claim 1, characterized in that: The filter assembly comprises an arc-shaped filter plate (113) and a connecting sleeve, wherein the arc-shaped filter plate (113) is fixedly mounted on the inner wall of the processing box (102), and the connecting sleeve is fixedly sleeved on the central shaft (118). A plurality of cleaning brushes (114) are symmetrically fixedly connected to the side wall of the connecting sleeve, and the central shaft (118) is rotatably connected to the inner wall of the arc-shaped filter plate (113).

3. A sedimentation device for urban sewage treatment according to claim 2, characterized in that: The filtering assembly further comprises an annular box (115), the annular box (115) being fixedly sleeved on the processing box (102), the annular box (115) being connected to the interior of the processing box (102) via a plurality of discharge holes, and a plurality of material taking ports being provided at equal intervals on the upper end of the annular box (115).

4. A sedimentation device for treating urban sewage according to claim 1, characterized in that: A liquid storage tank (116) and an oxygen tank (117) are fixedly connected to the side wall of the treatment box (102); the liquid storage tank (116) and the oxygen tank (117) are both connected to the straight cylinder (202) via a connecting pipe; a liquid inlet check valve and an air inlet check valve are respectively fixedly installed in the two connecting pipes.

5. A sedimentation device for treating urban sewage according to claim 1, characterized in that: The feeding mechanism (200) further comprises an annular discharge pipe (208), the side wall of which is fixedly connected to two feed pipes (207), the other ends of the two feed pipes (207) being connected to the interior of the straight cylinder (202), a liquid outlet check valve and a gas outlet check valve being fixedly installed in the two feed pipes (207), respectively, and a plurality of nozzles (209) being fixedly installed at equal intervals on the annular discharge pipe (208).

6. A sedimentation device for treating urban sewage according to claim 1, characterized in that: One end of each of the push rods (204) penetrates the side wall of the straight cylinder (202) and is slidably connected to the inner wall of the straight cylinder (202), and both ends of the multiple return springs (206) are respectively fixedly connected to the rotating wheel (205) and the side wall of the straight cylinder (202).

7. A sedimentation device for treating urban sewage according to claim 1, characterized in that: The lower ends of the plurality of rotating rods (303) are rotatably connected to the upper end of the guide plate (105), and the plurality of stirring blades (304) are provided with a plurality of stirring holes at equal intervals.

8. A sedimentation device for treating urban sewage according to claim 1, characterized in that: The lower end of the No. 2 connecting pipe (107) passes through the upper end of the sedimentation box (101) and is connected to the interior of the sedimentation box (101). A plurality of discharge pipes are fixedly connected to the side wall of the sedimentation box (101).

9. A sedimentation device for treating urban sewage according to claim 1, characterized in that: The first valve plate (108) and the second valve plate (110) are rotatably connected to the inner walls of the first connecting pipe (106) and the second connecting pipe (107), respectively.

10. A sedimentation method for treating urban sewage, using a sedimentation device for treating urban sewage according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, sewage is added into the treatment box (102) through the water inlet pipe (103), and drives the impeller (112) to rotate, and the solid waste in the sewage is filtered through the arc filter plate (113), and the cleaning brush (114) is driven to rotate through the central shaft (118) and clean the solid waste on the arc filter plate (113), so that the solid waste slides into the annular box (115); S2, the impeller (112) rotates and drives the central shaft (118) to rotate, and the central shaft (118) drives the first valve plate (108) and the second valve plate (110) to rotate. When the valve hole coincides with the water inlet hole, the sewage passes through the first connecting pipe (106) and the second connecting pipe (107), and the water is in the flow state at this time, otherwise it is in the closed state; In S3 and S2, when the No. 1 connecting pipe (106) is in a critical water flow state, the No. 2 connecting pipe (107) is in a just closed state, and at this time, the sewage flows into the top of the guide plate (105) through the No. 1 connecting pipe (106); S4, when the No. 1 valve plate (108) and the No. 2 valve plate (110) rotate clockwise by 135°, the No. 1 connecting pipe (106) is in a just-closed state, and continues to rotate clockwise by 45°, the No. 2 connecting pipe (107) is in a critical water flow state. During this process, the cam (201) and the driving gear (301) are driven to rotate by the central shaft (118), and the two rotating wheels (205) are squeezed in sequence by the cam (201), and the piston plate 203 is driven to move by the rotating wheels (205) and the push rod (204), and the flocculant and oxygen in the straight cylinder (202) are respectively squeezed into the annular discharge pipe (208), and then sprayed out through the nozzle (209); at the same time, the stirring blade (304) is driven to rotate by the setting of the driving gear (301), the driven gear (302) and the rotating rod (303) to stir the sewage; S5, when the No. 1 valve plate (108) and the No. 2 valve plate (110) continue to rotate 180° clockwise, the No. 1 connecting pipe (106) is in a critical water flow state, and the No. 2 connecting pipe (107) is in a just closed state. During this process, the continuously introduced sewage is temporarily stored above the partition (104), and the sewage that has been added above the guide plate (105) flows into the sedimentation tank (101) through the No. 2 connecting pipe (107) for sedimentation. S6, repeating steps S4 and S5, while ensuring continuous introduction of sewage, adding flocculant and introducing oxygen into the sewage through the feeding mechanism (200), and fully mixing the flocculant and oxygen with the sewage through the stirring mechanism (300).

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