CN111592179A

CN111592179A - Intelligent sewage purification equipment

Info

Publication number: CN111592179A
Application number: CN202010414491.XA
Authority: CN
Inventors: 张燕梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-08-28

Abstract

The invention relates to the technical field of sewage treatment. The intelligent sewage purification equipment comprises a primary filter water channel, a flocculation sedimentation tank, a grit chamber, a biodegradation tank and a tail end filter tank which are sequentially arranged along the sewage treatment sequence and are mutually communicated; the primary filter water channel is strip-shaped, a water inlet pipe is arranged above the front end of the primary filter water channel, and an impurity interception salvage box is arranged at the rear end of the primary filter water channel; the quantity of impurity interception fishing box is two, and arranges in proper order in the initial water course of straining along the flow direction of sewage. The water body impurity primary filtering and intercepting device can effectively perform primary filtering and intercepting on large impurities in the water body, can quickly salvage the impurities, is simple in structure, and greatly reduces the cost of using manpower and material resources.

Description

Intelligent sewage purification equipment

Technical Field

The invention relates to the technical field of sewage treatment, in particular to intelligent sewage purification equipment.

Background

The sewage purification treatment refers to a water treatment process for removing insoluble solid impurities, soluble impurities, organic matters and the like in sewage by one or more of physical, biological, chemical and the like modes. For urban sewage treatment, because of the many kinds of impurities contained in sewage, the sewage is usually treated by combining various modes such as physical, biological and chemical modes. Conventional sewage treatment plants may typically include a primary filter, a coagulation sedimentation tank, an advection grit chamber, a biodegradation tank, and the like. The combination and the arrangement sequence of the treatment tanks are specifically designed according to the type of the sewage to be treated. At present, the traditional sewage treatment device mainly has the following defects in the using process:

firstly, the primary filter tank usually adopts a grating or a filter screen to filter impurities, and the impurities need to be cleaned regularly in the long-term use process. The traditional mode adopts the manual work to clear up impurity, but this kind of mode of decontaminating is efficient extremely low, when sewage treatment volume is great, because impurity is more, can cause a large amount of manpower resources extravagant. In view of the above problems, a cleaning method of salvaging impurities by mechanical claws has appeared in the prior art, so as to reduce labor intensity, but because these mechanical claws have high equipment cost and complex structure, for sewage treatment enterprises, a large amount of cost is required for installation, operation and maintenance in use in the early period, and the burden of the enterprises is undoubtedly increased. If an impurity cleaning device which is suitable for the primary filtering link, has a simple structure and a good fishing effect can be developed, the problem can be fundamentally improved.

Secondly, before the water body enters the biological treatment, the traditional sewage treatment device usually needs to carry out gravity sedimentation in a horizontal flow grit chamber so as to reduce the total content of small particle impurities in the water body and further reduce the load of subsequent biological degradation treatment. The traditional advection grit chamber is usually a long and narrow runner, in the practical application process, the sedimentation effect mainly depends on the length of the advection grit chamber, the longer the length, the better the treatment effect, but the overlength advection grit chamber inevitably increases the floor area, and in the city with small and large amount of soil, the land cost is also increased. Therefore, how to improve the settling effect of the advection sand basin under the condition of not increasing the length and the occupied area is a great problem in the industry.

At present, a large amount of organic matters in the water body are removed mainly in a mode of microbial degradation. However, because the organic matters contained in the water are various in types and different microorganisms have great difference in decomposition efficiency for different organic matters, theoretically, microorganisms aiming at organic matter degradation should have directivity and specificity, and the degradation of the organic matters can be effectively realized by combining a plurality of different types of microorganisms. But also because of the variability in the environmental requirements of the microorganisms themselves, such as: the traditional mode of carrying out centralized putting culture on various microorganisms is obviously not suitable for actual requirements, so that the existing microbial degradation tank has great space for improvement in the aspect.

Disclosure of Invention

The invention aims to provide intelligent sewage purification equipment capable of effectively intercepting and fishing large-particle impurities.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: an intelligent sewage purification device comprises a primary filter channel, a flocculation sedimentation tank, a grit chamber, a biodegradation tank and a tail end filter tank which are sequentially arranged along the sewage treatment sequence and are mutually communicated;

the primary filter water channel is strip-shaped, a water inlet pipe is arranged above the front end of the primary filter water channel, and an impurity interception salvage box is arranged at the rear end of the primary filter water channel; the impurity intercepting and salvaging boxes are two in number and are sequentially arranged in the primary filter water channel along the flowing direction of the sewage; the impurity interception salvage box comprises a cuboid box body matched with the primary filter water channel, the box body comprises a top plate and a bottom plate, and four corners of the bottom plate are fixedly connected with the top plate through four vertical rods; the box body is close to the sewage to open one end and is provided with a primary filter grid at the other end; the surface of the upright rod facing the side wall of the primary filter water channel is in sliding fit with the side wall of the primary filter water channel in a reciprocating manner along the vertical direction through a sliding assembly, and the box body is driven by a driving assembly; and the left side surface and the right side surface of the box body are provided with side doors capable of being opened and closed.

Preferably, the sliding assembly comprises a strip-shaped guide groove fixedly arranged on the side face of the upright rod and extending along the height direction, and a guide protruding edge fixedly arranged on the side wall of the primary filter water channel and matched with the guide groove, and the guide groove is clamped on the guide protruding edge.

Preferably, a plurality of rollers are uniformly arranged in the guide groove along the length direction of the guide groove, and the rollers are in contact with the guide protruding ribs.

Preferably, four subaerial mounting holes that correspond of pole setting respectively are provided with, drive the subassembly including corresponding four hydraulic stems that set up in four mounting holes, the output of hydraulic stem faces up and with the lower surface rigid coupling of box roof.

Preferably, the door plate of the side door is in a net shape, and the lower edge of the side door is hinged with the bottom plate.

Preferably, one side of the primary filter water channel is also provided with a garbage recovery pond, and the garbage recovery pond is opposite to the impurity interception fishing box.

Preferably, the grit chamber is S-shaped, and comprises a front connecting section, a front backflow grit section, a middle connecting section, a rear backflow grit section and a rear connecting section in sequence along the flowing direction of the sewage; the front backflow sand setting section and the rear backflow sand setting section are positioned at two corner parts of the S shape of the sand basin and are in a three-quarter circle shape; the depth of the front backflow sand setting section and the depth of the rear backflow sand setting section are larger than that of the front connecting section, the middle connecting section and the rear connecting section.

Preferably, the side walls of the front connecting section and the middle connecting section are provided with accelerating flow guide bosses protruding towards the center; the accelerating flow guide boss and the side wall of the opposite sand settling tank form an accelerating flow channel, the accelerating flow channel of the front connecting section is opposite to one side of the outer edge of the front backflow sand settling section, and the accelerating flow channel of the middle connecting section is opposite to one side of the outer edge of the rear backflow sand settling section.

Preferably, the section of the accelerating diversion boss is trapezoidal or semicircular.

Preferably, the accelerating flow guide boss is gradually enlarged from top to bottom.

The beneficial effects of the invention are concentrated and expressed as follows: can be effectual carry out prefiltration, interception to the large-scale impurity in the water, can be with the quick salvage of impurity simultaneously, and simple structure, very big reduction use manpower and materials cost. Specifically, in the using process, the two impurity intercepting and salvaging boxes intercept and filter impurities in turn, when the impurities collected by the impurity intercepting and salvaging box at the front end need to be cleaned, the driving assembly drives the impurity intercepting and salvaging box to ascend until the bottom plate is level with the ground, and the side door is opened, so that the impurities can be quickly cleaned from the impurity intercepting and salvaging box. When the impurity interception fishing box at the front end is lifted, the impurity interception work in the primary filter water channel is mainly completed by the impurity interception fishing box at the rear end. After the impurities in the impurity interception salvage box positioned at the front end are cleaned up, the driving assembly drives the impurity interception salvage box to descend, and the impurities in the primary filter water channel are continuously intercepted and cleaned. The impurity interception fishing box positioned at the rear end only needs to be cleaned regularly. Compared with the traditional mode of combining the flaky grating with the mechanical claw type fishing equipment, the invention has the advantages that: 1. the structure is simpler, and the interception and salvage work can be simultaneously completed. 2. The impurities caught up are conveniently and quickly cleaned. 3. Due to the unique interception and salvage mechanism, the invention can intercept and salvage impurities in the deep water body, and has higher efficiency. 4. The automation level is high, and the hydraulic rod can be directly operated through a computer, so that the intelligent operation is more realized.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is an installation schematic diagram of a foreign matter interception fishing box;

FIG. 3 is a view from direction B-B of the structure shown in FIG. 2;

FIG. 4 is a schematic diagram of the structure shown in FIG. 3 in an in-use state;

FIG. 5 is a view from direction A-A of the structure shown in FIG. 1;

FIG. 6 is a schematic view of the internal structure of the aerobic microbial degradation tank;

FIG. 7 is a schematic view showing the internal structure of the end filtration tank;

fig. 8 is a schematic structural view of the water through hole.

Detailed Description

An intelligent sewage purification device as shown in fig. 1-8 comprises a primary filter water channel 1, a flocculation sedimentation tank 2, a grit chamber 3, a biodegradation tank and a terminal filter tank 4 which are sequentially arranged along the sequence of sewage treatment and are communicated with each other. As shown in fig. 1, a primary filter water channel 1, a flocculation sedimentation tank 2, a grit chamber 3, a biodegradation tank and a terminal filter tank 4 are arranged in this order substantially in the direction of sewage flow, i.e., in the direction of arrows in the figure. The front end of the primary filter water channel 1 is opposite to the water inlet pipe 5 and is used for receiving sewage; the flocculation sedimentation tank 2 is used for adding chemical agents for flocculation sedimentation, and the flocculation sedimentation tank 2 usually further comprises a flocculating agent adding mechanism and a stirring mechanism, which are conventional arrangements in the prior art and are not described in detail in the invention; the grit chamber 3 is used for carrying out advection precipitation on the sewage subjected to flocculation precipitation so as to reduce the content of medium and small particle impurities; the biodegradation tank treats harmful substances in the sewage in a mode of microbial degradation, and mainly aims at organic matters; the end filter tank 4 is used for filtering the water body after biodegradation so as to reduce particle precipitation.

Compared with the traditional sewage treatment device, the invention mainly has the following three differences: firstly, the interception and salvage of large impurities in the primary filtering stage have better effect; secondly, the medium and small particle impurities have better precipitation effect in the advection precipitation stage; and thirdly, in the microbial degradation stage, the degradation efficiency of the microorganisms on the organic matters is fully exerted, the organic matters are more fully degraded, and the quality of the purified water body is improved. The scheme improvement of the three aspects can be independently applied to the existing sewage treatment, and also can be applied to the sewage treatment by combining two or combining the two.

In the first point, namely the primary filtration stage, as shown in fig. 1-4, the primary filter water channel 1 of the invention is in a strip shape, a water inlet pipe 5 is arranged above the front end of the primary filter water channel 1, and an impurity interception fishing box 6 is arranged at the rear end of the primary filter water channel 1. Impurity interception fishing box 6 is used for intercepting and salvaging the big type impurity in just straining water course 1, as shown in fig. 2, impurity interception fishing box 6's quantity is two, and arranges in proper order in just straining water course 1 along the flow direction of sewage, also is right-left direction in fig. 2, the upper and lower direction in fig. 1.

Impurity interception fishing box 6 includes the box with the rectangular form of initial water course 1 matched with, the box includes roof 7 and bottom plate 8, four bights of bottom plate 8 are through four upright posts 9 and roof 7 rigid couplings. The box body is close to sewage and is set with a primary filter grid 10 towards one end opening and the other end. As shown in fig. 2, i.e. the left end of the box is open and the right end is provided with a preliminary filtering grid 10. The impurity gets into impurity interception fishing box 6 through the left end in, is held back by preliminary filtration grid 10 and realizes collecting. The pole setting 9 passes through the sliding component towards the surface of elementary water course 1 lateral wall and constitutes along the sliding fit of up-down direction reciprocating motion with the lateral wall of elementary water course 1, the box is driven by drive assembly.

The sliding assembly and the driving assembly have more specific structures as long as corresponding functions can be realized. For example: the sliding assembly can be a combination of a sliding block and a sliding groove, and can also be a combination of a nut and a screw rod. As shown in fig. 3 and 4, the sliding assembly may further include a strip-shaped guide groove 12 fixedly disposed on the side of the upright 9 and extending in the height direction, and a guide rib 13 fixedly disposed on the side wall of the primary filter water passage 1 and engaged with the guide groove 12, wherein the guide groove 12 is engaged with the guide rib 13. Of course, on the basis, in order to further improve the smoothness of the sliding fit between the guide groove 12 and the guide protruding rib 13, a plurality of rollers are uniformly arranged in the guide groove 12 along the length direction of the guide groove 12, and the rollers are in contact with the guide protruding rib 13.

The driving assembly can adopt a form that a screw-nut pair, an electric push rod and a movable pulley are matched with a crane, or can be as shown in figure 4, four installing holes 14 are respectively formed in the ground corresponding to the upright stanchions 9, the driving assembly comprises four hydraulic rods 15 correspondingly arranged in the four installing holes 14, and the output ends of the hydraulic rods 15 face upwards and are fixedly connected with the lower surface of the box top plate 7. Through the extension and retraction of the hydraulic rod 15, the driving assembly can drive the impurity intercepting and salvaging box 6 to stably lift in the vertical direction. The left side and the right side of the box body are provided with openable side doors 11, the side doors 11 can be opened after the impurity interception fishing box 6 is lifted, so that the internal garbage can be cleaned conveniently, as shown in fig. 3 and 4, the door plates of the side doors 11 are in a net shape, and the lower edges of the side doors 11 are hinged with the bottom plate 8. Thus, when the impurity intercepting and salvaging box 6 is lifted to a certain state, the side door 11 can be automatically opened under the action of gravity.

In the using process of the invention, the two impurity intercepting and salvaging boxes 6 are used for intercepting and filtering impurities in turn, when the impurities collected by the impurity intercepting and salvaging box 6 at the front end need to be cleaned, the driving component drives the impurity intercepting and salvaging box 6 to rise until the bottom plate 8 is flush with the ground, and the side door 11 is opened, thus the impurities can be quickly cleaned from the impurity intercepting and salvaging box 6. When the impurity interception fishing box 6 at the front end rises, the impurity interception work in the primary filter water channel 1 is mainly completed by the impurity interception fishing box 6 at the rear end. After the impurity in the impurity interception salvage box 6 at the front end is cleaned, the driving assembly drives the impurity interception salvage box 6 to descend, and the impurities in the primary filter water channel 1 are continuously intercepted and cleaned. The impurity interception fishing box 6 at the rear end only needs to be cleaned regularly. Compared with the traditional mode of combining the flaky grating with the mechanical claw type fishing equipment, the invention has the advantages that: 1. the structure is simpler, and the interception and salvage work can be simultaneously completed. 2. The impurities caught up are conveniently and quickly cleaned. 3. Due to the unique interception and salvage mechanism, the invention can intercept and salvage impurities in the deep water body, and has higher efficiency. In order to further improve the efficiency of garbage cleaning, a garbage recovery pond 16 is further arranged on one side of the primary filter water channel 1, and the garbage recovery pond 16 is opposite to the impurity interception fishing box 6.

In a second point, namely, in terms of the grit chamber 3, referring to fig. 1 and 5, the present invention is different in that the grit chamber 3 is S-shaped, and the grit chamber 3 sequentially includes a front connection section 17, a front backflow grit chamber 18, a middle connection section 19, a rear backflow grit chamber 20, and a rear connection section in the flowing direction of the sewage. The front backflow sand setting section 18 and the rear backflow sand setting section 20 are located at two corner positions of the S shape of the sand basin 3 and are three-quarter circular. The three-quarter circle is a shape like a circle with one side cut away as shown in fig. 1. The depth of the front backflow sand setting section 18 and the rear backflow sand setting section 20 is larger than that of the front connecting section 17, the middle connecting section 19 and the rear connecting section.

In the working process of the grit chamber 3, water subjected to chemical flocculation and sedimentation in the flocculation sedimentation tank 2 sequentially flows through the grit chamber 3 according to a front connecting section 17, a front backflow grit section 18, a middle connecting section 19, a rear backflow grit section 20 and a rear connecting section 21. The front backflow sand setting section 18 and the rear backflow sand setting section 20 are of a three-quarter circular structure and have large enough radians, so that a water body can generate backflow vortexes and slow speed after entering the front backflow sand setting section 18 and the rear backflow sand setting section 20, and medium and small particle impurities carried in the water body are quickly settled in the front backflow sand setting section 18 and the rear backflow sand setting section 20. Compared with the traditional linear grit chamber, the grit chamber has compact structure, smaller occupied area and higher settling speed.

In order to further improve the sedimentation effect, the invention can adopt a mode of further enhancing the backflow vortex, and as for how to enhance the backflow vortex, the invention can adopt two modes, namely, the speed of the movement of the water body when the water body enters the front backflow sand setting section 18 and the rear backflow sand setting section 20 is improved, and the water body forms larger backflow vortex under the influence of the arc-shaped guiding action in the process of flowing along the arc-shaped direction. Secondly, a column similar to an inserted rod is arranged at the center of the front backflow sand setting section 18 and the rear backflow sand setting section 20, so that a more stable backflow vortex is formed around the main body by the water body.

In the first mode, as shown in fig. 1 and 5, the side walls of the front connecting section 17 and the middle connecting section 19 are provided with an accelerating diversion boss 21 protruding towards the center. The accelerating flow guide boss 21 and the side wall of the opposite side of the grit chamber 3 form an accelerating flow passage 22, the accelerating flow passage 22 of the front connecting section 17 is opposite to one side of the outer edge of the front backflow grit section 18, and the accelerating flow passage 22 of the middle connecting section 19 is opposite to one side of the outer edge of the rear backflow grit section 20. Through setting up water conservancy diversion boss 21, can reduce the excessive flow in the acceleration runner 22 to improve water speed, simultaneously, acceleration runner 22 can directly be with the direction of motion guide of water to the direction of flowing along the outer fringe one side of preceding backward flow sand setting section 18 and backward flow sand setting section 20, under the effect of centrifugal force, middle and small new impurity also can be in the inner wall department of being close to preceding backward flow sand setting section 18 and backward flow sand setting section 20 outer fringe one side fast precipitation.

Besides, the section of the accelerated flow guiding boss 21 is trapezoidal or semicircular, the accelerated flow guiding boss 21 of the present invention can also be designed in a manner as shown in fig. 5, that is, the accelerated flow guiding boss 21 is gradually enlarged from top to bottom. After the improvement, because the section of the upper layer of the accelerating flow passage 22 is large and the section of the lower layer is small, the flow speed of the upper layer of the accelerating flow passage 22 is slower than that of the lower layer, and the flow speed difference enables the upper layer of water body to have a flow state which moves downwards to supplement the lower layer of water body, so that the water body can generate a flow state from top to bottom in the process of entering the front backflow sand setting section 18 and the rear backflow sand setting section 20 through the accelerating flow passage 22, and the small and medium particle impurities can be rapidly precipitated through the flow state.

In the second mode, in order to make the backflow vortexes formed in the front backflow sand setting section 18 and the rear backflow sand setting section 20 more stable, the present invention preferably makes the centers of the front backflow sand setting section 18 and the rear backflow sand setting section 20 be provided with vertical and circular backflow reinforcing columns 23, as shown in fig. 1 and 5, the backflow vortexes are formed by centering the backflow reinforcing columns 23, so that the overall stability of the backflow vortexes is more stable, the outer surfaces of the backflow reinforcing columns 23 are provided with spiral flow guide ridges 24 extending in the vertical direction, and the formation of the backflow vortexes is further enhanced by the addition of the flow guide ridges 24. In addition, in order to further enhance the tendency of the water body to flow from top to bottom, the backflow reinforcing columns 23 are inclined from bottom to top towards the inner edge side near the front backflow sand setting section 18 or the rear backflow sand setting section 20, so that a flow passage with a large top and a small bottom is formed between the backflow reinforcing columns 23 and the inner wall of the outer edge side of the sand setting section. In the process of flowing around the backflow strengthening column 23, because the lower layer of water has a relatively fast flow velocity and the upper layer of water has a relatively slow flow velocity, the upper layer of water can also form a water flow state from top to bottom in the downward supplement process.

From the third aspect, namely the microbial degradation tank, the present invention is also significantly different from the existing sewage treatment apparatus, as shown in fig. 1, the biological degradation tank includes an aerobic biological degradation tank 25 and an anaerobic biological degradation tank 26, and by adopting the mode of combining the anaerobic microbial degradation tank 26 with the aerobic microbial degradation tank 25, two types of microbes can specifically degrade different types of organic matters in the water body, so that the comprehensive degradation efficiency of the organic matters is improved, and the quality standard of the water body after purification is improved.

Be provided with the microbial degradation district that is the echelonment in aerobic biodegradable pond 25, the microbial degradation district is reduced towards the rear end by the front end in aerobic biodegradable pond 25 gradually, all is provided with a microorganism culture tank 27 on each grade ladder face in microbial degradation district, be provided with the fibre cluster that is used for adhering to aerobic microorganism in the microorganism culture tank 27, the fibre cluster is plastic fiber cluster or stainless steel fiber cluster, as long as can satisfy the attached growth of microorganism can. One end of the first water pipe 28 is communicated with the output end of the anaerobic biodegradation tank 26, the other end of the first water pipe 28 is erected above the microorganism culture tank 27 on the top layer, and a first water pump 29 which supplies water to the aerobic biodegradation tank 25 is arranged on the first water pipe 28. One end of the second water pipe 30 extends into the bottom of the aerobic biodegradation tank 25, the other end of the second water pipe 30 extends into the tail end filtering tank 4, and a second water pump 31 for delivering water to the tail end filtering tank 4 is arranged on the second water pipe 30.

When the aerobic biological degradation device is used, the water treated in the anaerobic biological degradation tank 26 is pumped into the aerobic biological degradation tank 25 by the first water pump 29 through the first water delivery pipe 28, and the water flows down in a step shape through the plurality of biological culture tanks 27 in sequence. Certainly, after the microbial degradation is completed, a certain amount of degradation products are generated, and in order to effectively remove the degradation products, the water body should be poured into the tail end filter tank 4 and even the subsequent membrane filtration equipment for final treatment.

As shown in fig. 7, a stepped filtering area is arranged in the terminal filtering tank 4, the filtering area gradually decreases from the front end to the rear end of the terminal filtering tank 4, a filtering tank 32 is arranged on each stepped surface of the filtering area, and a filtering filler is arranged in the filtering tank 32. As shown in fig. 7, the number of the filter tanks 32 is 4, and the filter filler in the filter tanks 32 from the upper layer to the lower layer is cobblestone, quartz coarse sand, quartz fine sand and activated carbon particles in sequence. The lower part of the vertical surface of the filtering groove 32 is provided with a water through hole 33, and a separation net is arranged in the water through hole 33. The second water duct 30 extends to above the filtering tank 32 at the top of the end filtering tank 4. The bottom of the end filtering tank 4 is provided with a water collecting tank 34, and the side surface of the water collecting tank 34 is provided with a drain pipe 35.

During the use, under the pump sending of second suction pump 31, the water gets into in the terminal filtering ponds 4 through second raceway 30, carries out the multi-stage filtration through echelonment multi-stage filtration groove 32, finally gets into catchment groove 34, and multiple filtration filler can be effectual adsorbs and holds back the granule of different particle diameters in the water, has ensured the plot nature of water. Of course, in order to make the filtered water in the upper layer fall into the lower layer more uniformly, the water through holes 33 may also be designed in an inverted U shape as shown in fig. 8.

Claims

1. An intelligent sewage purification device comprises a primary filter water channel (1), a flocculation sedimentation tank (2), a grit chamber (3), a biodegradation tank and a tail end filter tank (4) which are sequentially arranged along the sewage treatment sequence and are mutually communicated;

the method is characterized in that: the primary water filtering channel (1) is in a strip shape, a water inlet pipe (5) is arranged above the front end of the primary water filtering channel (1), and an impurity intercepting and salvaging box (6) is arranged at the rear end of the primary water filtering channel; the impurity intercepting and salvaging boxes (6) are two in number and are sequentially arranged in the primary filter water channel (1) along the flowing direction of sewage; the impurity interception salvage box (6) comprises a cuboid box body matched with the primary filter water channel (1), the box body comprises a top plate (7) and a bottom plate (8), and four corners of the bottom plate (8) are fixedly connected with the top plate (7) through four vertical rods (9); the box body is close to the sewage and is provided with an opening at one end and a primary filter grid (10) at the other end; the surface of the upright rod (9) facing the side wall of the primary filter water channel (1) is in sliding fit with the side wall of the primary filter water channel (1) through a sliding assembly, the sliding assembly reciprocates along the vertical direction, and the box body is driven by a driving assembly; the left side and the right side of the box body are provided with side doors (11) which can be opened and closed.

2. The intelligent sewage purification device of claim 1, wherein: the sliding assembly comprises a strip-shaped guide groove (12) which is fixedly arranged on the side surface of the vertical rod (9) and extends along the height direction, and a guide convex edge (13) which is fixedly arranged on the side wall of the primary filter water channel (1) and is matched with the guide groove (12), wherein the guide groove (12) is clamped on the guide convex edge (13).

3. The intelligent sewage purification apparatus of claim 2, wherein: a plurality of rollers are uniformly arranged in the guide groove (12) along the length direction of the guide groove (12), and the rollers are in contact with the guide convex ribs (13).

4. The intelligent sewage purification apparatus of claim 3, wherein: four subaerial a mounting hole (14) that corresponds pole setting (9) respectively is provided with, drive assembly is including corresponding four hydraulic stem (15) that set up in four mounting holes (14), the output of hydraulic stem (15) up and with the lower surface rigid coupling of box roof (7).

5. The intelligent sewage purification device of claim 4, wherein: the door plate of the side door (11) is net-shaped, and the lower edge of the side door (11) is hinged with the bottom plate (8).

6. The intelligent sewage purification device of claim 5, wherein: one side of the primary filter water channel (1) is also provided with a garbage recovery pond (16), and the garbage recovery pond (16) is opposite to the impurity interception salvage box (6).

7. The intelligent sewage purification device of claim 6, wherein: the grit chamber (3) is S-shaped, and the grit chamber (3) sequentially comprises a front connecting section (17), a front backflow grit section (18), a middle connecting section (19), a rear backflow grit section (20) and a rear connecting section along the flowing direction of sewage; the front backflow sand setting section (18) and the rear backflow sand setting section (20) are positioned at two S-shaped corner parts of the sand basin (3) and are in a three-quarter circle shape; the depth of the front backflow sand setting section (18) and the depth of the rear backflow sand setting section (20) are greater than that of the front connecting section (17), the middle connecting section (19) and the rear connecting section.

8. The intelligent sewage purification apparatus of claim 7, wherein: the side walls of the front connecting section (17) and the middle connecting section (19) are provided with accelerating flow guide bosses (21) protruding towards the center; the acceleration flow guide boss (21) and the side wall of the opposite side of the grit chamber (3) form an acceleration flow channel (22), the acceleration flow channel (22) of the front connecting section (17) is opposite to one side of the outer edge of the front backflow grit section (18), and the acceleration flow channel (22) of the middle connecting section (19) is opposite to one side of the outer edge of the rear backflow grit section (20).

9. The intelligent sewage purification apparatus of claim 8, wherein: the section of the accelerating diversion boss (21) is trapezoidal or semicircular.

10. The intelligent sewage purification apparatus of claim 9, wherein: the accelerating flow guide boss (21) is gradually enlarged from top to bottom.