Sewage treatment equipment with multi-cavity treatment function

Abstract

The invention provides sewage treatment equipment with a multi-cavity treatment function, and relates to the technical field of sewage treatment. A first treatment box, a second treatment box, a third treatment box and a fourth treatment box which are vertically arranged in a rectangular array are mounted on the support frame, sewage enters from the upper end of the first treatment box, and a purified water outlet pipe for discharging purified water is arranged at the middle upper part of the side wall of one end of the fourth treatment box. The first treatment box and the fourth treatment box are arranged to be higher box bodies, the second treatment box and the third treatment box are arranged to be lower box bodies, the bottom communicating pipe and the overflow communicating pipe are utilized to form a stepped water flow path, and sewage sequentially flows through the four treatment boxes under the action of gravity. According to the design, continuous flow can be realized without extra power, the problems of high energy consumption and flow interruption caused by the fact that traditional multi-stage treatment equipment depends on pumping are solved, meanwhile, reverse flow is avoided through water level difference control, and the stability of the treatment sequence is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to sewage treatment equipment with a multi-chamber treatment function. Background Art

[0002] In the field of sewage treatment, multi-stage treatment processes are widely used due to their characteristics of phased removal of pollutants. However, in the prior art, multi-stage treatment equipment is often limited in efficiency and has high operation and maintenance costs due to insufficient structural design and power coordination. Traditional multi-chamber sewage treatment systems mostly rely on pumping to achieve water flow transfer between boxes, which not only increases energy consumption, but is also prone to process interruptions due to pump failures; at the same time, inaccurate water level control may cause backflow or disordered treatment sequence, affecting the stability of the effluent. In addition, the reagent mixing process mostly uses one-way stirring or static mixers. Insufficient mixing uniformity can easily lead to reagent waste and insufficient reaction, especially for the contact efficiency of suspended matter and reagents. There is an obvious bottleneck.

[0003] In the solid-liquid separation process, traditional sedimentation tanks often use horizontal or vertical flow structures. The sedimentation area is limited and easily affected by water flow disturbances, resulting in secondary suspension of flocculants and reduced sedimentation efficiency. Most equipment relies on manual or intermittent sludge removal devices. If dredging is not timely, it is easy to cause the bottom sludge to compact and clog, requiring frequent shutdowns for maintenance. For the treatment of foam, existing technologies mostly use scrapers or fixed filters. The former has the risk of mechanical obstruction, while the latter is easy to clog the filter holes due to the adhesion of foam, and it is difficult to achieve efficient separation of foam and water, resulting in waste of water resources. Summary of the invention

[0004] The present invention relates to a sewage treatment equipment with multi-chamber treatment function, in which sewage is sequentially treated with dosing and mixing, flocculation and sedimentation, foam removal and activated carbon deep purification to form a continuous treatment chain. After the height and connection mode of each treatment box are optimized, the equipment occupies a small area and has high treatment efficiency. It is especially suitable for small and medium-sized sewage treatment scenarios, solving the limitations of traditional process equipment being large, process being dispersed and operation and maintenance cost being high.

[0005] The present invention provides a sewage treatment device with a multi-chamber treatment function, specifically comprising: a support frame; a first treatment box, a second treatment box, a third treatment box and a fourth treatment box are installed on the support frame in a vertical rectangular array, sewage enters through the upper end of the first treatment box, and a clean water outlet pipe for discharging clean water is provided at the upper middle part of the side wall of one end of the fourth treatment box; connecting pipes are provided between the lower ends of the first treatment box and the second treatment box and between the lower ends of the third treatment box and the fourth treatment box to connect the inner cavities, and the inner cavities are connected between the upper ends of the second treatment box and the third treatment box through a plate box-shaped overflow connecting pipe; A first shaft is rotatably installed between the lower ends of the first processing box and the second processing box and passes through the connecting pipe, and a second shaft is rotatably installed between the lower ends of the third processing box and the fourth processing box and passes through the connecting pipe; a servo motor is fixedly mounted on the outer wall of the second processing box to drive the first shaft, and the other ends of the first shaft and the second shaft are rotatably connected by a belt; A mixing mechanism is vertically provided in the inner cavity of the first treatment box, and the mixing mechanism mixes the liquid medicine in the inner cavity of the first treatment box by moving it up and down rhythmically, and the mixing mechanism is driven by a first shaft rod; a sedimentation auxiliary frame is provided in the inner cavity of the second treatment box; a froth removal mechanism for removing froth is vertically provided at the upper end of the outer end side wall of the third treatment box, and the froth removal mechanism is driven by a second shaft rod, and activated carbon columns are inserted from one side of the third treatment box and the fourth treatment box.

[0006] Optionally, the first treatment tank and the fourth treatment tank have the same height and are the highest, and the second treatment tank and the third treatment tank have the same height and are the lowest, and the sewage passes through the first treatment tank, the second treatment tank, the third treatment tank, and the fourth treatment tank in sequence.

[0007] Optionally, the mixing mechanism is composed of a mixing shaft, a hexagram frame, an end wheel, a rhythm wheel groove, a rhythm rod, a shifting shaft, a rhythm plate and a mixing impeller. The upper and lower ends of the mixing shaft are rotatably installed in the inner cavity of the first processing box through the hexagram frame respectively. The upper and lower ends of the mixing shaft are fixedly installed with end wheels respectively. The wheel wall of the end wheel is provided with a circular opening of a wavy rhythm wheel groove that undulates up and down. Six vertically sliding rhythm rods are also distributed in a circle on the upper and lower hexagram frames. The upper and lower ends of the rhythm rod are respectively fixed with shifting shafts, which are slidably inserted in the rhythm wheel grooves of the corresponding end wheels. A spiral rhythm plate is fixed on the rhythm rod, and a mixing impeller is also fixed on the mixing shaft inside the end wheel. When the mixing shaft rotates, the upper and lower mixing impellers rotate synchronously to push the medicine mixture to the middle, the rhythm rod moves back and forth up and down, and the rhythm plate follows the movement to stir the medicine.

[0008] Optionally, the settlement auxiliary frame is provided with evenly spaced settlement sleeves distributed in a rectangular array, and the settlement sleeves are hollow tubular structures that are wide at the top and narrow at the bottom; The lower end of the inner cavity of the second treatment box is connected to a sedimentation box, a cylinder-controlled gate is provided on the sedimentation box to block the inner cavity from draining sewage, and a sewage pipe is provided at the bottom of the sedimentation box.

[0009] Optionally, a scum outlet is provided at an upper end of one side of the third processing box at a position corresponding to the scum removal mechanism, and the scum outlet is higher than the overflow connecting pipe.

[0010] Optionally, spiral conveying augers are provided on the portions of the first shaft and the second shaft corresponding to the connecting pipe.

[0011] Optionally, a right-angle bevel gear set is provided at a position on the first shaft corresponding to the lower end of the mixing shaft, one bevel gear of the right-angle bevel gear set is fixedly connected to the first shaft, and the other bevel gear is fixedly connected to the lower end of the mixing shaft, and the rotation of the first shaft drives the mixing shaft to rotate synchronously.

[0012] Optionally, a wheel disc is fixedly provided at the end of the second shaft corresponding to the bottom of the froth removal mechanism, and a connecting rod is rotatably connected to the outer end wall of the wheel disc near the edge.

[0013] Optionally, the foam removal mechanism is composed of a second shaft, a wheel disc, a connecting rod and a foam removal box; the bottom of the foam removal box is rotatably connected to the upper end of the connecting rod by a pin shaft, and side hanging plates are vertically arranged at the left and right ends of the foam removal box respectively, and the side hanging plates are vertically slidably sleeved on hanging columns fixed on the side walls of the third processing box, and a return hose is fixedly arranged at the lower end of the foam removal box, and the other end of the return hose is connected to the inner cavity of the third processing box below, and a docking port is opened at the upper end of the side wall tangent to the third processing box, and a filter screen plate is installed in the middle of the inner cavity of the foam removal box tilted outward and downward, and the filter screen The lower end of the plate is provided with an outwardly convex collecting pipe, and one end of the collecting pipe is extended outwardly to be provided with a scum discharge pipe. When the second shaft rotates, the connecting rod drives the scum removal box to move reciprocally up and down on the hanging column. When the scum removal box moves to the lowermost position, the docking interface docks with the scum outlet, and the upper scum liquid in the third processing box enters the scum removal box, the scum removal box moves up, the scum outlet is closed, the upper end of the scum removal box is higher than the third processing box, the scum liquid in the inner cavity of the scum removal box is filtered through the filter screen plate, the scum is collected and discharged in the collecting pipe, and the filtered water flows back to the third processing box through the reflux hose by gravity.

[0014] The present invention provides a sewage treatment device with a multi-chamber treatment function, which has the following beneficial effects: By setting the first and fourth treatment boxes as higher boxes, the second and third treatment boxes as lower boxes, and using the bottom connecting pipe and the overflow connecting pipe to form a stepped water flow path, the sewage flows through the four treatment boxes in sequence under the action of gravity. This design can achieve continuous flow without additional power, solving the problems of high energy consumption and process interruption caused by traditional multi-stage treatment equipment relying on pumping, and avoiding backflow through water level difference control to ensure the stability of the treatment sequence.

[0015] In the present invention, the mixing mechanism in the first treatment box drives the upper and lower mixing impellers to rotate through the mixing shaft to form a horizontal vortex, and the spiral rhythmic plate is disturbed in the vertical direction by the rhythmic wheel groove of the end wheel and the reciprocating motion of the rhythmic rod. The superposition of rotation and reciprocating motion realizes the three-dimensional mixing of the liquid medicine. Compared with the traditional one-way stirring or static mixing device, it significantly shortens the mixing time and improves the reaction uniformity of the medicine and sewage, solving the problem of treatment effect fluctuation caused by insufficient mixing.

[0016] The rectangular array settling sleeves in the second treatment box of the present invention adopt a hollow tubular structure that is wide at the top and narrow at the bottom. While expanding the settling area, the settling area is accelerated by the tapered tube wall, reducing the impact of water flow disturbance on the settling. The bottom settling box cooperates with the cylinder to control the gate to achieve the timed discharge of sludge. Combined with the micro-vibration generated by the servo motor during operation, it further promotes the aggregation and compaction of flocculants, solving the blockage and reduced treatment efficiency caused by untimely dredging of traditional settling tanks.

[0017] The foam removal mechanism of the third treatment box in the present invention drives the foam removal box to slide up and down through the second shaft rod, and uses the dynamic opening and closing of the docking port and the foam outlet to achieve periodic suction and separation of the foam liquid. After the foam is separated from the water body by the tilted filter screen plate, the foam is discharged through the collection pipe, and the filtered water flows back by gravity through the return hose, forming a closed loop of foam removal and water recovery. Compared with traditional scrapers or fixed filters, this design avoids mechanical obstruction and filter blockage problems, while reducing water loss.

[0018] The activated carbon columns inserted in the side walls of the third treatment box and the fourth treatment box in the present invention can be quickly replaced to ensure continuous and stable adsorption performance, solving the pain point of cumbersome replacement of traditional built-in filter materials. The servo motor drives the first shaft and the second shaft to rotate synchronously through belt linkage. The conveying screws on the two shafts promote the transfer of sediment in the connecting pipe, and drive the mixing mechanism and the foam removal mechanism at the same time, realizing a single power source to control multiple links of coordinated operation, significantly reducing equipment complexity and energy consumption, and solving the problems of high cost and poor coordination of multi-motor systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture: Figure 1 The three-dimensional structure of the present invention is shown Figure 1 ; Figure 2 The three-dimensional structure of the present invention is shown Figure 2 ; Figure 3 It shows a schematic diagram of the axial structure of the first processing box and the second processing box in a partially half-cut and separated state of the present invention; Figure 4 A schematic diagram of the structure of the hybrid shaft portion of the present invention is shown; Figure 5 The present invention shows Figure 4 A is a schematic diagram of the structure of the enlarged part; Figure 6 A schematic diagram of a partial half-section structure of a settlement auxiliary frame of the present invention is shown; Figure 7 It shows a schematic diagram of the axial structure of the third processing box and the fourth processing box in a half-cut and separated state of the present invention; Figure 8 It shows a schematic diagram of the axial structure of the froth removal box of the present invention in a state of partial upward movement and separation; Fig. 9 The schematic diagram of the axial structure of the froth removal box of the present invention in a partially half-cut and separated state is shown.

[0022] Reference numerals 1. Support frame; 2. First processing box; 201. Mixing shaft; 202. Six-pointed star frame; 203. End wheel; 2031. Rhythm wheel groove; 204. Rhythm rod; 2041. Dial shaft; 2042. Rhythm plate; 205. Mixing impeller; 3. Second processing box; 301. Settling auxiliary frame; 3011. Settling sleeve; 302. Settling box; 4. The third treatment box; 401. The froth outlet; 5. Fourth treatment box; 501. Clean water outlet pipe; 6. Connecting pipe; 7. Servo motor; 8. First shaft; 801. Right angle bevel gear set; 9. second shaft; 901. wheel disc; 902. connecting rod; 10. Overflow connecting pipe; 11. Float removal box; 1101. Side hanging plate; 1102. Hanging column; 1103. Return hose; 1104. Filter screen plate; 1105. Collection pipe; 1106. Float discharge pipe; 1107. Docking port; 12. Activated carbon column. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figures 1 to 9 : The present invention proposes a sewage treatment device with a multi-cavity treatment function, comprising: a support frame 1; a first treatment box 2, a second treatment box 3, a third treatment box 4 and a fourth treatment box 5 are installed on the support frame 1 in a vertical rectangular array, sewage enters through the upper end of the first treatment box 2, and a clean water outlet pipe 501 for discharging clean water is provided at the upper middle part of the side wall of one end of the fourth treatment box 5; a connecting pipe 6 is provided between the lower ends of the first treatment box 2 and the second treatment box 3 and between the lower ends of the third treatment box 4 and the fourth treatment box 5 to connect the inner cavity, and the inner cavity is connected between the upper ends of the second treatment box 3 and the third treatment box 4 through a box-shaped overflow connecting pipe 10; A first shaft 8 is rotatably installed between the lower ends of the first treatment box 2 and the second treatment box 3, and passes through the connecting pipe 6. A second shaft 9 is rotatably installed between the lower ends of the third treatment box 4 and the fourth treatment box 5, and passes through the connecting pipe 6. A servo motor 7 is fixedly mounted on the outer wall of the second treatment box 3 to drive the first shaft 8. The other ends of the first shaft 8 and the second shaft 9 are rotatably connected by a belt. The servo motor 7 is arranged in the second treatment box 3 and can also assist the second treatment box 3 to improve the sedimentation effect by generating micro-vibration, and can also improve the sedimentation collection effect at the sedimentation box 302. A mixing mechanism is vertically arranged in the inner cavity of the first treatment box 2, and the mixing mechanism mixes the liquid medicine in the inner cavity of the first treatment box 2 by moving it up and down, and the mixing mechanism is driven by the first shaft 8; a sedimentation auxiliary frame 301 is arranged in the inner cavity of the second treatment box 3; a froth removal mechanism for removing froth is vertically arranged on the upper end of the outer side wall of the third treatment box 4, and the froth removal mechanism is driven by the second shaft 9. The third treatment box 4 and the fourth treatment box 5 are both plugged with an activated carbon column 12 from one side, and the activated carbon column 12 plugged into the side wall of the third treatment box 4 and the fourth treatment box 5 can be replaced regularly, and is used to absorb dissolved organic matter and residual pollutants, as the final purification link to further improve water quality. The plug-in design of the activated carbon column 12 is easy to maintain and ensures the continuity of the treatment effect. The sewage passes through the first treatment box 2 (dosage mixing), the second treatment box 3 (flocculation sedimentation), the third treatment box 4 (froth removal and primary filtration), and the fourth treatment box 5 (activated carbon deep purification) in turn, and finally meets the discharge standards. Each treatment box achieves continuous and efficient sewage treatment through the coordination of water level difference, mechanical transmission and structural design, and is suitable for small and medium-scale sewage treatment scenarios.

[0025] Among them, the heights of the first treatment box 2 and the fourth treatment box 5 are consistent and the highest, and the heights of the second treatment box 3 and the third treatment box 4 are consistent and the lowest. The sewage passes through the first treatment box 2, the second treatment box 3, the third treatment box 4, and the fourth treatment box 5 in sequence. This design uses gravity difference to realize that the water flows from the first treatment box 2 through the bottom connecting pipe 6 into the second treatment box 3, and then overflows from the top of the second treatment box 3 to the third treatment box 4 through the overflow connecting pipe 10, and finally enters the fourth treatment box 5 through the bottom connecting pipe 6, completing the multi-stage treatment process. The clean water is finally discharged through the clean water outlet pipe 501 on the side wall of the fourth treatment box 5, forming a stepped water level control to ensure the stability of the treatment sequence.

[0026] The mixing mechanism is composed of a mixing shaft 201, a hexagram frame 202, an end wheel 203, a rhythm wheel groove 2031, a rhythm rod 204, a dial shaft 2041, a rhythm plate 2042 and a mixing impeller 205. The upper and lower ends of the mixing shaft 201 are rotatably mounted in the inner cavity of the first processing box 2 through the hexagram frame 202, and the upper and lower ends of the mixing shaft 201 are fixedly mounted with end wheels 203. The wheel wall of the end wheel 203 is annularly provided with a wavy rhythm wheel groove 2031 that rises and falls. Six vertically sliding rhythm rods 204 are also annularly distributed on the upper and lower hexagram frames 202. The upper and lower ends of the rhythm rods 204 are The lower two ends are respectively fixed with a shifting shaft 2041, which is slidably inserted into the corresponding rhythm wheel groove 2031 of the end wheel 203. A spiral rhythm plate 2042 is fixed on the rhythm rod 204, and a mixing impeller 205 is also fixed on the mixing shaft 201 inside the end wheel 203. When the mixing shaft 201 rotates, the upper and lower mixing impellers 205 rotate synchronously to push the medicine mixture to the middle, the rhythm rod 204 moves up and down, and the rhythm plate 2042 moves with the movement to stir the medicine. The mixing mechanism in the first treatment box 2 realizes the mixing of medicine through the mixing shaft 201, the six-pointed star frame 202 and the end wheel 203. The mixing shaft 201 is driven to rotate by the first shaft rod 8 through the right-angle bevel gear set 801, driving the upper and lower groups of mixing impellers 205 to rotate synchronously, pushing the medicine to the middle to form a vortex. The rhythm wheel groove 2031 of the end wheel 203 cooperates with the shaft 2041 of the rhythm rod 204, so that the six rhythm rods 204 slide back and forth on the hexagram frame 202. The spiral structure of the rhythm plate 2042 produces vertical disturbance to the liquid medicine during the up and down movement, thereby enhancing the mixing effect. This design realizes three-dimensional mixing of the liquid medicine through the superposition of rotation and reciprocating motion, thereby improving the reaction efficiency of the medicine and sewage.

[0027] Among them, the sedimentation auxiliary frame 301 is distributed in a rectangular array with evenly spaced sedimentation sleeves 3011, which are hollow tubular structures with a wide top and a narrow bottom; the lower end of the inner cavity of the second treatment box 3 is connected to the sedimentation box 302, and the sedimentation box 302 is provided with a cylinder-controlled gate to separate the inner cavity from sewage, and the bottom of the sedimentation box 302 is provided with a sewage pipe. The sedimentation auxiliary frame 301 is set in the second treatment box 3, and the sedimentation sleeves 3011 distributed in a rectangular array are hollow tubular structures with a wide top and a narrow bottom, which expand the sedimentation area and guide the flocculants to gather downward. The tapered structure of the sedimentation sleeve 3011 can accelerate the sinking of the flocculants and prevent secondary suspension caused by water flow disturbance. The bottom sedimentation box 302 controls the gate to open and close through the cylinder, and regularly discharges the deposited sludge. The sewage pipe is connected to the external collection system to realize the automatic cleaning of the sediment.

[0028] Wherein, spiral conveying augers are provided on the parts of the first shaft rod 8 and the second shaft rod 9 corresponding to the connecting pipe 6 .

[0029] Among them, a right-angle bevel gear set 801 is provided at a position on the first shaft 8 corresponding to the lower end of the mixing shaft 201. One bevel gear of the right-angle bevel gear set 801 is fixedly connected to the first shaft 8, and the other bevel gear is fixedly connected to the lower end of the mixing shaft 201. The first shaft 8 rotates to drive the mixing shaft 201 to rotate synchronously. The first shaft 8 drives the mixing mechanism through the right-angle bevel gear set 801, and the wheel 901 at the end of the second shaft 9 drives the foam removal mechanism, thereby realizing multi-functional coordinated control of a single power source and reducing energy consumption.

[0030] A wheel disc 901 is fixedly provided at the end of the second shaft rod 9 corresponding to the lower side of the froth removal mechanism, and a connecting rod 902 is rotatably connected to the outer end wall of the wheel disc 901 near the edge.

[0031] Embodiment 2, on the basis of embodiment 1, a froth outlet 401 is provided at the upper end of one side of the third processing box 4 at a position corresponding to the froth removal mechanism, and the froth outlet 401 is higher than the overflow connecting pipe 10, and the froth removal mechanism is composed of a second shaft rod 9, a wheel disc 901, a connecting rod 902 and a froth removal box 11; the bottom of the froth removal box 11 is rotatably connected to the upper end of the connecting rod 902 by a pin shaft, and the left and right ends of the froth removal box 11 are respectively vertically provided with side hanging plates 110 1, the side hanging plate 1101 is vertically slidably sleeved on the hanging column 1102 fixed on the side wall of the third processing box 4, the lower end of the foam removal box 11 is fixedly provided with a return hose 1103, the other end of the return hose 1103 is connected to the inner cavity of the third processing box 4 below, and the upper end of the side wall tangent to the third processing box 4 of the foam removal box 11 is provided with a docking port 1107, and the middle part of the inner cavity of the foam removal box 11 is tilted outward and downward to install a filter screen plate 1104, and the filter screen plate 1104 is installed in a downward and outward manner. The lower end of the third processing box 4 is provided with a convex collecting pipe 1105, and one end of the collecting pipe 1105 is extended outwardly to be provided with a froth discharge pipe 1106. When the second shaft rod 9 rotates, the connecting rod 902 drives the froth removal box 11 to reciprocate up and down on the hanging column 1102. When the froth removal box 11 moves to the lowermost position, the docking port 1107 docks with the froth outlet 401, and the upper froth liquid in the third processing box 4 enters the froth removal box 11, and the froth removal box 11 moves up, and the froth removal box 11 is removed. The outlet 401 is closed, the upper end of the scum removal box 11 is higher than the third treatment box 4, the scum liquid in the inner cavity of the scum removal box 11 is filtered through the filter screen 1104, the scum is collected and discharged in the collection pipe 1105, and the filtered water flows back to the third treatment box 4 through the return hose 1103 by gravity, and the scum removal mechanism on the side wall of the third treatment box 4 is driven by the second shaft 9 to drive the wheel 901 and the connecting rod 902, driving the scum removal box 11 to slide up and down along the hanging column 1102. When the scum removal box 11 drops to the lowest point, the docking port 1107 is connected with the scum outlet 401, and the upper scum liquid enters the box body; when moving up, the docking port 1107 is closed, the scum liquid is separated from the water body by the inclined filter screen 1104, and the scum is discharged from the scum discharge pipe 1106 through the collection pipe 1105, and the filtered water flows back to the third treatment box 4 through the return hose 1103 by gravity. The mechanism achieves dynamic removal of floating foam and water recovery through mechanical reciprocating motion, avoiding the clogging problem of traditional foam scraping devices.

[0032] The working principle of this embodiment: Sewage enters from the top of the first treatment tank 2 and flows through the four treatment tanks in sequence through the stepped water level difference. The first treatment tank 2 and the fourth treatment tank 5 are relatively high, while the second treatment tank 3 and the third treatment tank 4 are relatively low, forming a gravity-driven stepped flow channel. Sewage first enters the second treatment tank 3 through the bottom connecting pipe 6 of the first treatment tank 2, then overflows from the top of the second treatment tank 3 to the third treatment tank 4 through the overflow connecting pipe 10, and then flows into the fourth treatment tank 5 through the bottom connecting pipe 6 of the third treatment tank 4, and finally is discharged from the clean water outlet pipe 501. The water level difference design ensures a stable water flow sequence to avoid backflow or stagnation.

[0033] The mixing mechanism in the first treatment box 2 is driven by the first shaft 8 through the right-angle bevel gear set 801 to rotate the mixing shaft 201. The mixing impellers 205 at the upper and lower ends of the mixing shaft 201 rotate synchronously to form a vortex toward the middle, thereby strengthening the initial mixing of the liquid medicine and the sewage. At the same time, the end wheels 203 at both ends of the mixing shaft 201 cooperate with the shifting shaft 2041 of the rhythmic rod 204 through the wavy rhythmic wheel groove 2031, driving the six rhythmic rods 204 to slide up and down along the hexagram frame 202. The spiral rhythmic plate 2042 on the rhythmic rod 204 generates periodic disturbances in the vertical direction, which, combined with the horizontal vortex of the mixing impeller 205, realizes three-dimensional mixing, significantly improving the dispersion efficiency of the drug.

[0034] The sedimentation auxiliary frame 301 set in the second treatment box 3 expands the sedimentation area through the rectangular array of sedimentation sleeves 3011. The sedimentation sleeve 3011 is a hollow tubular structure that is wide at the top and narrow at the bottom. Its tapered design guides the flocculants to gather downward and accelerates sedimentation, reducing secondary suspension caused by water flow disturbance. The sedimentation box 302 is located at the bottom of the second treatment box 3. The gate is opened regularly by the cylinder control, and the deposited sludge is discharged through the bottom sewage pipe. The servo motor 7 is installed on the outer wall of the second treatment box 3. The micro-vibration generated during its operation further promotes the sinking of the flocculants and enhances the sedimentation effect.

[0035] The scum removal mechanism of the third treatment box 4 is driven by the second shaft 9. The wheel 901 at the end of the second shaft 9 drives the scum removal box 11 to slide up and down along the hanging column 1102 through the connecting rod 902. When the scum removal box 11 drops to the lowest point, its docking port 1107 is connected with the scum outlet 401 of the third treatment box 4, and the upper scum liquid enters the box body; after the scum removal box 11 moves up, the docking port 1107 is closed, and the scum liquid is separated by the inclined filter screen 1104, and the scum is discharged from the collection pipe 1105 through the scum discharge pipe 1106, and the filtered water flows back to the third treatment box 4 by gravity through the return hose 1103. This reciprocating motion realizes the continuous removal of scum and water recovery, avoiding the clogging problem of traditional scraping devices.

[0036] The activated carbon column 12 inserted into the side wall of the third treatment box 4 and the fourth treatment box 5 is used to adsorb dissolved organic matter and residual pollutants. The sewage is initially filtered when passing through the third treatment box 4, and then enters the fourth treatment box 5 for further purification through the activated carbon column 12. The plug-in design facilitates regular replacement of activated carbon, ensuring continuous and stable adsorption efficiency, and ultimately ensuring that the effluent water quality meets the standards.

[0037] The servo motor 7 drives the first shaft 8 to rotate, and the second shaft 9 rotates synchronously through the belt linkage. The spiral conveying screws on the two shafts continuously push the sediment to the adjacent treatment box in the connecting pipe 6 to prevent the pipeline from being blocked. The first shaft 8 drives the mixing mechanism through the right-angle bevel gear set 801, and the second shaft 9 controls the foam removal mechanism through the wheel 901 and the connecting rod 902, realizing the multi-functional coordination of a single power source and reducing the energy consumption of the equipment.

[0038] The sewage is sequentially treated by mixing with chemicals (first treatment tank 2), flocculation and sedimentation (second treatment tank 3), foam removal (third treatment tank 4) and activated carbon deep purification (fourth treatment tank 5). Each link is closely connected through water level difference, mechanical transmission and structural optimization to form a continuous and efficient sewage treatment system. This equipment is particularly suitable for small and medium-sized sewage treatment scenarios, taking into account both treatment efficiency and operation and maintenance convenience.

[0039] In this article, there are a few points to note: 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.

[0040] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0041] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sewage treatment device with multi-chamber treatment function, comprising: A support frame (1); a first treatment box (2), a second treatment box (3), a third treatment box (4) and a fourth treatment box (5) are mounted on the support frame (1) in a vertical rectangular array, sewage enters through the upper end of the first treatment box (2), and a clean water outlet pipe (501) for discharging clean water is provided at the upper middle portion of the side wall of one end of the fourth treatment box (5); connecting pipes (6) are provided between the lower ends of the first treatment box (2) and the second treatment box (3) and between the lower ends of the third treatment box (4) and the fourth treatment box (5) to connect the inner cavities, and the upper ends of the second treatment box (3) and the third treatment box (4) are connected to the inner cavities via a box-shaped overflow connecting pipe (10); The invention is characterized in that a first shaft (8) is rotatably installed between the lower ends of the first processing box (2) and the second processing box (3) and passes through the connecting pipe (6), and a second shaft (9) is rotatably installed between the lower ends of the third processing box (4) and the fourth processing box (5) and passes through the connecting pipe (6); a servo motor (7) is fixedly mounted on the outer wall of the second processing box (3) to drive the first shaft (8), and the other ends of the first shaft (8) and the second shaft (9) are rotatably connected via a belt; A mixing mechanism is vertically arranged in the inner cavity of the first treatment box (2), and the mixing mechanism mixes the liquid medicine in the inner cavity of the first treatment box (2) by moving it up and down rhythmically, and the mixing mechanism is driven by a first shaft (8); a sedimentation auxiliary frame (301) is arranged in the inner cavity of the second treatment box (3); a froth removal mechanism for removing froth is vertically arranged at the upper end of the outer side wall of the third treatment box (4), and the froth removal mechanism is driven by a second shaft (9); an activated carbon column (12) is inserted from one side of each of the third treatment box (4) and the fourth treatment box (5).

2. The sewage treatment equipment with multi-chamber treatment function according to claim 1 is characterized in that: The first treatment box (2) and the fourth treatment box (5) have the same height and are the highest, while the second treatment box (3) and the third treatment box (4) have the same height and are the lowest. The sewage passes through the first treatment box (2), the second treatment box (3), the third treatment box (4), and the fourth treatment box (5) in sequence.

3. The sewage treatment equipment with multi-chamber treatment function according to claim 1 is characterized in that: The mixing mechanism comprises a mixing shaft (201), a hexagram frame (202), an end wheel (203), a rhythm wheel groove (2031), a rhythm rod (204), a dial shaft (2041), a rhythm plate (2042) and a mixing impeller (205); the upper and lower ends of the mixing shaft (201) are rotatably mounted in the inner cavity of the first processing box (2) via the hexagram frame (202); the upper and lower ends of the mixing shaft (201) are fixedly mounted with the end wheels (203); the wheel wall of the end wheel (203) is provided with a wavy rhythm wheel groove (2031) that rises and falls in an annular manner; the upper and lower hexagram frames (202) are also provided with six annularly distributed impellers (2042) that are arranged in an annular manner. A vertically sliding rhythm rod (204) is provided, and the upper and lower ends of the rhythm rod (204) are respectively fixedly provided with a shifting shaft (2041), and the shifting shaft (2041) is slidably inserted into the rhythm wheel groove (2031) of the corresponding end wheel (203). A spiral rhythm plate (2042) is fixedly provided on the rhythm rod (204), and a mixing impeller (205) is also fixedly provided on the mixing shaft (201) inside the end wheel (203). When the mixing shaft (201) rotates, the upper and lower mixing impellers (205) rotate synchronously to push the medicine mixture toward the middle, and the rhythm rod (204) moves reciprocatingly up and down, and the rhythm plate (2042) moves accordingly to stir the medicine.

4. The sewage treatment equipment with multi-chamber treatment function according to claim 1 is characterized in that: The sedimentation auxiliary frame (301) is provided with evenly spaced sedimentation sleeves (3011) distributed in a rectangular array, and the sedimentation sleeves (3011) are hollow tubular structures that are wide at the top and narrow at the bottom; The lower end of the inner cavity of the second processing box (3) is butt-jointed with a sedimentation box (302), a cylinder-controlled gate is provided on the sedimentation box (302) to isolate the inner cavity from sewage discharge, and a sewage discharge pipe is provided at the bottom of the sedimentation box (302).

5. The sewage treatment equipment with multi-chamber treatment function according to claim 1 is characterized in that: A scum outlet (401) is provided at the upper end of one side of the third treatment box (4) at a position corresponding to the scum removal mechanism, and the scum outlet (401) is higher than the overflow connecting pipe (10).

6. The sewage treatment equipment with multi-chamber treatment function according to claim 1 is characterized in that: A spiral conveying auger is provided on the portions of the first shaft (8) and the second shaft (9) corresponding to the connecting pipe (6).

7. The sewage treatment equipment with multi-chamber treatment function according to claim 3 is characterized in that: A right-angle bevel gear set (801) is provided at a position on the first shaft (8) corresponding to the lower end of the mixing shaft (201); one bevel gear of the right-angle bevel gear set (801) is fixedly connected to the first shaft (8), and the other bevel gear is fixedly connected to the lower end of the mixing shaft (201); the first shaft (8) rotates to drive the mixing shaft (201) to rotate synchronously.

8. The sewage treatment equipment with multi-chamber treatment function according to claim 5, characterized in that: A wheel disc (901) is fixedly provided at the end of the second shaft (9) below the corresponding froth removal mechanism, and a connecting rod (902) is rotatably connected to the outer end wall of the wheel disc (901) at a position close to the edge.

9. The sewage treatment equipment with multi-chamber treatment function according to claim 8, characterized in that: The froth removal mechanism is composed of a second shaft (9), a wheel disc (901), a connecting rod (902) and a froth removal box (11); the bottom of the froth removal box (11) is rotatably connected to the upper end of the connecting rod (902) via a pin shaft; side hanging plates (1101) are vertically arranged at the left and right ends of the froth removal box (11); the side hanging plates (1101) are vertically slidably sleeved on hanging columns (1102) fixed on the side walls of the third processing box (4); a return hose (1103) is fixedly arranged at the lower end of the froth removal box (11); the other end of the return hose (1103) is connected to the inner cavity of the third processing box (4) below; a docking port (1107) is provided at the upper end of the side wall of the froth removal box (11) tangent to the third processing box (4); a filter screen plate (1104) is installed in the middle of the inner cavity of the froth removal box (11) in an outward and downward manner; the filter screen plate (1104) is provided with a filter screen plate (1104). The lower end is provided with an outwardly convex collecting pipe (1105), and one end of the collecting pipe (1105) is extended outwardly to be provided with a froth discharge pipe (1106). When the second shaft rod (9) rotates, the connecting rod (902) drives the froth removal box (11) to reciprocate up and down on the hanging column (1102). When the froth removal box (11) moves to the lowermost position, the docking port (1107) docks with the froth outlet (401), and the froth in the third processing box (4) is discharged. The upper layer of froth liquid enters the froth removal box (11), the froth removal box (11) moves upward, the froth outlet (401) is closed, the upper end of the froth removal box (11) is higher than the third processing box (4), the froth liquid in the inner cavity of the froth removal box (11) is filtered through the filter screen (1104), the froth is collected and discharged in the collection pipe (1105), and the filtered water flows back to the third processing box (4) through the return hose (1103) by gravity.

Images