CN215946989U

CN215946989U - Concrete wastewater multistage sedimentation tank convenient to clearance

Info

Publication number: CN215946989U
Application number: CN202122578034.7U
Authority: CN
Inventors: 王军; 王应文; 李磊
Original assignee: Shanghai Kaijiu Commercial Concrete Co ltd
Current assignee: Shanghai Kaijiu Commercial Concrete Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-03-04
Anticipated expiration: 2031-10-25

Abstract

The application relates to a concrete wastewater multistage sedimentation tank convenient to clean, which relates to the field of concrete wastewater treatment technology and comprises a primary filtering tank, a flocculation sedimentation tank and a reuse sedimentation tank which are sequentially communicated, wherein a sand and stone recovery mechanism is arranged in the primary filtering tank and comprises a recovery mesh screen arranged at the water inlet of the primary filtering tank, and the recovery mesh screen is connected in the primary filtering tank in a sliding and detachable manner and used for filtering and intercepting sand and stone; the bottom of elementary filtering ponds, flocculation and precipitation pond and retrieval and utilization sedimentation pond all is provided with takes out mud mechanism, it is used for extracting the silt of deposit at elementary filtering ponds, flocculation and precipitation pond and retrieval and utilization sedimentation pond bottom of the pool to take out mud mechanism. Grit recovery mechanism and take out mud mechanism cooperation in this application, can intercept solid impurity such as filtration grit to effectively extract the silt of the elementary filtering ponds of clearance, flocculation and precipitation pond and retrieval and utilization sedimentation tank bottom, the clearance operation process is comparatively convenient, is favorable to improving the cleaning efficiency of sedimentation tank.

Description

Concrete wastewater multistage sedimentation tank convenient to clearance

Technical Field

The application relates to the technical field of concrete wastewater treatment, in particular to a concrete wastewater multistage sedimentation tank convenient to clean.

Background

The concrete can produce a large amount of waste water in the production process, the waste water contains a large amount of strong alkaline substances such as cement, sand stone, coal dust, mineral powder, additives and the like, the direct discharge can cause serious pollution to the environment, a concrete mixing plant generally adopts a multistage sedimentation tank to carry out sewage treatment on the waste water, and the waste water is discharged after the sewage treatment.

Multistage sedimentation tank in the concrete mixing plant generally includes the primary filter tank, flocculation and precipitation pond and the retrieval and utilization sedimentation tank that communicate in proper order, and the cell body shape is the cuboid, through the overflow mouth intercommunication at top between each sedimentation tank, and the clearance is dragged for through digging the machine to silt in the sedimentation tank.

Aiming at the related technologies, the inventor finds that each sedimentation tank actually contains sludge deposition, wherein more solid impurities such as sand and stones are deposited in the primary filtering tank, the actual operation of fishing the sludge from each sedimentation tank through the excavator is inconvenient, and the cleaning efficiency of the sedimentation tank is low.

SUMMERY OF THE UTILITY MODEL

In order to handle the mud in the sedimentation tank comparatively convenient, improve the cleaning efficiency to the sedimentation tank, this application provides a concrete waste water multistage sedimentation tank convenient to clearance.

The application provides a concrete waste water multistage sedimentation tank convenient to clearance adopts following technical scheme:

a concrete wastewater multistage sedimentation tank convenient to clean comprises a primary filtering tank, a flocculation sedimentation tank and a reuse sedimentation tank which are sequentially communicated, wherein a sand and stone recovery mechanism is arranged in the primary filtering tank, the sand and stone recovery mechanism comprises a recovery mesh screen arranged at the water inlet of the primary filtering tank, the recovery mesh screen is slidably and detachably connected in the primary filtering tank, and the recovery mesh screen is used for filtering and intercepting sand and stone; the bottom of elementary filtering ponds, flocculation and precipitation pond and retrieval and utilization sedimentation pond all is provided with takes out mud mechanism, it is used for extracting the silt of deposit at elementary filtering ponds, flocculation and precipitation pond and retrieval and utilization sedimentation pond bottom of the pool to take out mud mechanism.

Through adopting above-mentioned technical scheme, waste water flows into elementary filtering ponds in proper order, flocculation and precipitation pond and retrieval and utilization sedimentation tank, carry out grit filtration in proper order, flocculation and precipitation and supernatant retrieval and utilization, at this in-process, the recovery mesh screen among the grit recovery mechanism can filter the interception to great solid impurity such as grit at the water inlet department of elementary filtering ponds, it is comparatively convenient to clear up recovery grit, it then can be at elementary filtering ponds to take out mud mechanism, flocculation and precipitation pond and retrieval and utilization sedimentation pond bottom extract the silt of bottom of the pool, the silt of clearance sediment at the bottom of the pool, guarantee elementary filtering ponds, flocculation and precipitation pond are to the precipitation efficiency of waste water, and improve the cleaning efficiency to the sedimentation tank, it is more effective to the sewage treatment of waste water.

Optionally, be provided with on the lateral wall of elementary filtering ponds, set up on the recovery net sieve and be suitable for with slide rail sliding connection's spout, the slip of recovery net sieve can be dismantled and connect on the slide rail, just the lateral wall laminating of one side outer wall that the recovery net sieve is close to the water inlet and elementary filtering ponds.

Through adopting above-mentioned technical scheme, retrieve solid impurity such as grit that the installation that the mesh screen can be comparatively steady gets into elementary filtering ponds and intercepts and accept to comparatively steady take out from elementary filtering ponds, carry out recycle to solid impurity such as grit accepting in retrieving the mesh screen.

Optionally, the sand and stone recovery mechanism further comprises a hoisting assembly, and the hoisting assembly is used for hoisting the recovery mesh screen from the primary filter tank; the lifting component comprises a supporting seat, a supporting rotating shaft, a winding drum, a sling and a hand crank, wherein the supporting seat is arranged at the water inlet of the primary filter tank, the supporting rotating shaft is rotatably connected to the supporting seat and located above the primary filter tank, the winding drum is sleeved with the supporting rotating shaft, the sling is wound on the winding drum, one end of the sling is fixedly connected with the winding drum, the other end of the sling is connected with a recovery mesh screen, and the hand crank is fixedly connected to one end of the winding drum.

Through adopting above-mentioned technical scheme, rotate the hand rocker can be more convenient will retrieve the mesh screen and hang up from elementary filtering ponds, retrieve the clearance to great solid impurity such as grit in the recovery mesh screen to will retrieve the mesh screen and drop into once more behind the recovery grit and carry out reuse in elementary filtering ponds.

Optionally, be provided with connecting cable and rings on retrieving the mesh screen, the connecting cable evenly is provided with many, many the connecting cable is connected in retrieving the different sides of mesh screen, and many the equal one end of connecting cable and retrieving the mesh screen rigid coupling, the other end collects and the rigid coupling on rings, the one end rigid coupling that the bobbin was kept away from to the sling has the hook, rings are suitable for with the hook lock joint.

Through adopting above-mentioned technical scheme, rings and hook buckle cooperate, are convenient for install the dismantlement to retrieving the mesh screen, and the connecting cable then can be connected retrieving the mesh screen in the different sides of retrieving the mesh screen, forms a plurality of tie points for retrieving the mesh screen and lifting by crane the difficult side of turning on one's side of in-process, more steady lifts by crane the recovery to retrieving the mesh screen and retrieving solid impurity such as grit in the mesh screen.

Optionally, it includes three mud pumps and takes out the mud pipe to take out mud mechanism, three groups take out the mud pump and take out the mud pipe and be located primary filter tank, flocculation and precipitation pond and retrieval and utilization sedimentation tank bottom of the pool respectively, every group the material end of taking out of mud pump is connected with the mud pipe of taking out that is located same pond, every group the discharge end of taking out the mud pump all extends to the outside.

Through adopting above-mentioned technical scheme, start the mud pump and can be comparatively convenient extract the clearance to the silt of elementary filtering ponds, flocculation and precipitation pond and retrieval and utilization sedimentation tank bottom of the pool to carry silt to the outside, cleaning efficiency is higher.

Optionally, every group take out the mud pipe and all include along the even many mud branch pipes of taking out that set up of rivers direction, it is many take out the mud branch pipe and be located primary filter tank, flocculation and precipitation pond and retrieval and utilization sedimentation tank bottom of the pool respectively, every take out and all seted up on the mud branch pipe and take out the mud hole.

Through adopting above-mentioned technical scheme, many are taken out mud branch pipe and are taken out mud hole and cooperate can be more comprehensive to the silt of bottom of the pool and extract the clearance, and take out mud branch pipe length direction unanimous with the rivers direction, waste water can be better wash taking out mud branch pipe, and silt is difficult for blockking up the deposit taking out between mud branch pipe and the bottom of the pool, and the clearance effect to bottom of the pool silt is better.

Optionally, every take out the mud hole of taking out on the mud branch pipe and all seted up a plurality ofly, every take out a plurality of mud holes of taking out on the mud branch pipe and divide into three group at least, every group take out the mud hole and all evenly just interval cloth along the length direction who takes out the mud branch pipe and locate on taking out the mud branch pipe, each group take out the mud hole and evenly encircle to arrange on taking out the mud branch pipe along the circumference direction of taking out the mud branch pipe.

Through adopting above-mentioned technical scheme, the mud hole is taken out to the multiunit and the cooperation of taking out mud branch pipe and mud pump can carry out all-round extraction clearance to the silt of taking out mud branch pipe week side, is favorable to comparatively comprehensive to preliminary filtering ponds, flocculation and precipitation pond and retrieval and utilization sedimentation pond bottom of the pool silt to clear up.

Optionally, elementary filtering ponds, flocculation and precipitation pond and retrieval and utilization sedimentation tank bottom set up to the domatic of slope, all be provided with the partition wall between elementary filtering ponds and the flocculation and precipitation pond and between flocculation and precipitation pond and the retrieval and utilization sedimentation pond, be located partition wall between elementary filtering ponds and the flocculation and precipitation pond is close to one side upper portion of flocculation and precipitation pond and is located the equal protrusion in one side upper portion that the partition wall between flocculation and precipitation pond is close to the retrieval and utilization sedimentation pond and is provided with the recoil and keep off the edge.

Through adopting above-mentioned technical scheme, the recoil keeps off along can separating the fender to the waste water of recoil on the partition wall, avoids waste water backtracking recoil, improves the cleaning efficiency of sedimentation tank.

Optionally, the hoisting assembly further comprises a splicing positioning piece, the splicing positioning piece is connected to one end of the supporting rotating shaft, a splicing positioning groove is formed in the position, close to the supporting rotating shaft, of the supporting seat, and the splicing positioning piece is suitable for being spliced with the splicing positioning groove.

Through adopting above-mentioned technical scheme, when retrieving the mesh screen and lifting by crane to the position that is fit for getting to unload and retrieve the grit, in getting into the grafting constant head tank with the grafting setting element grafting, can fix bobbin and support the pivot on the supporting seat, make things convenient for the staff to get to unload and carry out the grit in retrieving the mesh screen and retrieve.

In summary, the present application includes at least one of the following beneficial technical effects:

the sand and stone recovery mechanism is matched with the mud pumping mechanism, so that large solid impurities such as sand and stone can be filtered and intercepted at the water inlet of the primary filtering tank, and sludge at the bottoms of the primary filtering tank, the flocculation sedimentation tank and the reuse sedimentation tank can be pumped and cleaned, the cleaning operation process is convenient, the sand and stone recovery rate is improved, and the cleaning efficiency of the sedimentation tank is improved;

by arranging the lifting assembly, the hand-operated lever can be rotated to conveniently lift or put down the recovery mesh screen from the primary filter tank, so that solid impurities in the recovery mesh screen are recovered and cleaned, and the cleaning efficiency is improved;

through mud pump, multiunit take out mud branch pipe and take out the cooperation of mud hole, start the mud pump and can be comparatively convenient and comprehensive the silt to elementary filter tank, flocculation and precipitation pond and retrieval and utilization sedimentation tank bottom of the pool draw the clearance to carry silt to the outside, cleaning efficiency is higher.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of a partial structure for showing the internal structure of the tank body;

FIG. 3 is a schematic view showing the overall construction of the sand recovering mechanism;

FIG. 4 is an exploded view of the plug-in connector and the support seat;

fig. 5 is an enlarged schematic view of the structure of the portion a in fig. 2.

Description of reference numerals: 1. a primary filtration tank; 11. a water inlet groove; 12. a slide rail; 2. a flocculation sedimentation tank; 3. recycling the sedimentation tank; 4. a partition wall; 41. a kick-back edge; 5. a filter screen; 6. a sand and stone recovery mechanism; 61. recovering the mesh screen; 611. a connecting cable; 612. a hoisting ring; 62. a hoisting assembly; 621. a supporting seat; 6211. a column; 6212. a support block; 6213. inserting a positioning groove; 622. a support shaft; 6221. a limiting groove; 623. a bobbin; 624. a sling; 6241. hooking and buckling; 625. a hand lever; 626. inserting and positioning pieces; 6261. positioning a turntable; 6262. a slider; 6263. an insertion block; 7. a mud pumping mechanism; 71. a mud pump; 72. a mud pumping pipe; 721. a mud pumping main pipe; 722. a mud pumping branch pipe; 723. and (5) pumping mud holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses multistage sedimentation tank of concrete waste water convenient to clearance relates to concrete waste water treatment equipment's field.

Referring to fig. 1 and 2, a concrete wastewater multistage sedimentation tank convenient for cleaning comprises a primary filtering tank 1, a flocculation sedimentation tank 2 and a recycling sedimentation tank 3 which are sequentially communicated, wherein the primary filtering tank 1, the flocculation sedimentation tank 2 and the recycling sedimentation tank 3 are square tank bodies with inclined bottoms, the three tank bodies are positioned on an inclined slope surface and have upward openings, the primary filtering tank 1 is positioned at the highest terrain, the recycling sedimentation tank 3 is positioned at the lowest terrain, partition walls 4 are arranged between the primary filtering tank 1 and the flocculation sedimentation tank 2 and between the flocculation sedimentation tank 2 and the recycling sedimentation tank 3, the horizontal height of the partition wall 4 between the primary filtering tank 1 and the flocculation sedimentation tank 2 is higher than that of the partition wall 4 between the flocculation sedimentation tank 2 and the recycling sedimentation tank 3, a filter screen 5 for filtering wastewater overflowing from the tank at the front end is arranged at the upper part of each partition wall 4, the filter screen 5 is detachably fixed on the partition wall 4.

Because the concrete wastewater contains a large amount of strong alkaline substances such as cement, sand stone, coal dust, mineral powder, additives and the like, the strong alkaline substances have great harm to the environment, and are deposited in the tank to form sludge which is inconvenient to clean, in order to conveniently treat the sludge in the sedimentation tank, a sand stone recovery mechanism 6 is arranged in the primary filter tank 1 and is used for recovering large solid impurities such as sand stone and the like contained in the wastewater; the bottom of the primary filtering tank 1, the bottom of the flocculation sedimentation tank 2 and the bottom of the recycling sedimentation tank 3 are provided with sludge pumping mechanisms 7 for pumping sludge deposited at the bottoms of the primary filtering tank 1, the flocculation sedimentation tank 2 and the recycling sedimentation tank 3.

Referring to fig. 1 and 2, the upper portion of the side wall of one side of the opening of the primary filter tank 1, which is far away from the flocculation sedimentation tank 2, is connected with the elongated water inlet tank 11, the sand and stone recovery mechanism 6 comprises a recovery mesh screen 61 positioned below the water inlet tank 11 and a lifting assembly 62 for lifting the recovery mesh screen 61 from the primary filter tank 1, the recovery mesh screen 61 is in a long strip shape, the recovery mesh screen 61 slides and is detachably connected to the water inlet of the primary filter tank 1, and the sand and stone recovery mesh screen is used for filtering and intercepting large solid impurities such as sand and stone entering the primary filter tank 1 from the water inlet tank 11.

Referring to fig. 2 and 3, the lifting assembly 62 includes a support base 621, a support rotating shaft 622, a bobbin 623, a lifting cable 624, a hand lever 625 and an inserting positioning element 626, the support base 621 includes a vertical upright post 6211 oppositely disposed at two sides of the primary filter port along the water flow direction and a support block 6212 fixedly connected to the top end of the upright post 6211, the support rotating shaft 622 is located between the two support blocks 6212, two ends of the support rotating shaft 622 respectively penetrate through the two support blocks 6212, and the support rotating shaft 622 is in a round bar shape and is rotatably connected with the support blocks 6212; the bobbin 623 is cylindrically sleeved and fixedly connected to the supporting rotating shaft 622, and the axis of the supporting rotating shaft 622 is consistent with the axis of the bobbin 623; the lifting rope 624 is wound on the bobbin 623, one end of the lifting rope 624 is fixedly connected with the bobbin 623, and the other end of the lifting rope 624 is connected with the recovery mesh screen 61; the hand lever 625 is fixedly connected to one end of the bobbin 623 and is used for workers to rotate and support the rotating shaft 622 and the bobbin 623 and lift the recovery mesh screen 61 from the primary filter tank 1; the inserting positioning element 626 is connected to the end of the winding drum 623 where the hand lever 625 is arranged, and is used for being inserted into the supporting base 621 when the worker hangs out the recovery mesh screen 61, so as to fix the winding drum 623, prevent the winding drum from rotating and enable the recovery mesh screen 61 to stay at the hanging-out position.

Referring to fig. 3 and 4, the inserting positioning element 626 includes a positioning rotary disc 6261, a sliding block 6262 and an inserting block 6263, the positioning rotary disc 6261 is annularly sleeved and slidably connected to one end of the supporting rotary shaft 622 where the hand lever 625 is provided, the positioning rotary disc 6261 is located outside the supporting seat 621 and a certain distance exists between the positioning rotary disc 6261 and the supporting block 6212, the axis of the positioning rotary disc 6261 is consistent with the axis of the supporting rotary shaft 622, and the diameter of the inner ring of the positioning rotary disc 6261 is slightly larger than the diameter of the supporting rotary shaft 622; the sliding block 6262 is positioned at one side of the positioning turntable 6261 close to the supporting block 6212 and fixedly connected to the annular inner wall of the positioning turntable 6261, a linear and strip-shaped limiting groove 6221 is arranged on the supporting rotary shaft 622 between the positioning turntable 6261 and the supporting block 6212, the length extension direction of the limiting groove 6221 is parallel to the axis of the supporting rotary shaft 622, the sliding block 6262 is inserted and slidably connected into the limiting groove 6221, and the sliding block 6262 is matched with the limiting groove 6221, so that the supporting rotary shaft 622 can rotate along with the rotation of the positioning turntable 6261; the plug-in block 6263 rigid coupling is in the location carousel 6261 on the lateral wall of the one side that is close to supporting shoe 6212, the cooperation is offered on the lateral wall of the one side that is close to location carousel 6261 of supporting shoe 6212 and is suitable for the plug-in constant head tank 6213 that supplies plug-in block 6263 to peg graft, when plug-in block 6263 pegs graft in plug-in constant head tank 6213, location carousel 6261, support pivot 622 and bobbin 623 do not rotate any more, hand lever 625 rigid coupling is on the lateral wall of the one side that is far away from supporting shoe 6212 in location carousel 6261.

Further, referring to fig. 4, two sets of the sliding blocks 6262 and the limiting grooves 6221 are provided, and the two sets of the sliding blocks 6262 and the limiting grooves 6221 are symmetrically distributed on the supporting rotating shaft 622 along the axis of the supporting rotating shaft 622 so as to enhance the connection strength between the inserting positioning piece 626 and the supporting rotating shaft 622.

Rotate hand lever 625 can be comparatively convenient with retrieve the mesh screen 61 and hang up from elementary filtering ponds 1, retrieve the clearance to the great solid impurity such as grit in retrieving the mesh screen 61, lift by crane when being suitable for the position of getting unloaded when retrieving the mesh screen 61, the staff can push location carousel 6261 in the elementary filtering ponds 1 towards, make in the grafting piece 6263 pegs graft and get into grafting constant head tank 6213, make location carousel 6261, support pivot 622 and bobbin 623 no longer rotate, and then be convenient for get unloading to retrieving mesh screen 61.

Referring to fig. 3, in order to facilitate taking out and unloading the recovery mesh screen 61, a plurality of connecting cables 611 and a hanging ring 612 are arranged on the recovery mesh screen 61, the hanging ring 612 is located on the upper portion of the recovery mesh screen 61, the connecting cables 611 are uniformly arranged, the connecting cables 611 are connected to different sides of the recovery mesh screen 61, one end of each connecting cable 611 is fixedly connected to the recovery mesh screen 61, the other end of each connecting cable 611 is collected and fixedly connected to the hanging ring 612, a hook 6241 suitable for being fastened to the hanging ring 612 is fixedly connected to one end of the lifting cable 624 far from the bobbin 623, and the recovery mesh screen 61 is fastened to one end of the lifting cable 624 far from the bobbin 623 through the hanging ring 612 and the hook 6241.

Referring to fig. 2, a slide rail 12 is further convexly arranged on the side wall of the primary filtering tank 1, a chute suitable for being slidably connected with the slide rail 12 is formed on the recovery mesh screen 61, and the recovery mesh screen 61 is slidably and detachably connected to the slide rail 12, so that the recovery mesh screen 61 can stably enter the primary filtering tank 1 and be taken out from the primary filtering tank 1; and retrieve the lateral wall laminating of one side outer wall that mesh screen 61 is close to the water inlet and elementary filtering ponds 1 to better accept solid impurity such as grit in the waste water, realize the recycle to solid impurity such as grit.

Referring to fig. 2 and 5, the sludge pumping mechanism 7 includes three groups of sludge pumps 71 and sludge pumping pipes 72, the three groups of sludge pumps 71 and the sludge pumping pipes 72 are respectively located at the bottoms of the primary filtering tank 1, the flocculation sedimentation tank 2 and the recycling sedimentation tank 3, the material pumping end of each group of sludge pumps 71 is connected with the sludge pumping pipe 72 located in the same tank, and the discharge end of each group of sludge pumps 71 extends to the outside.

Furthermore, each group of mud pumping pipes 72 comprises a plurality of mud pumping branch pipes 722 uniformly arranged along the water flow direction and a mud pumping main pipe 721 vertically connected with the plurality of mud pumping branch pipes 722, a group of mud pumping branch pipes 722 and mud pumping main pipes 721 positioned at the same bottom of the tank are obliquely arranged on the bottom wall of the tank body, the plurality of mud pumping branch pipes 722 are parallel to each other, the length direction of the mud pumping branch pipes 722 is consistent with the water flow direction, the mud pumping main pipe 721 is connected to the lower ends of the mud pumping branch pipes 722 and communicated with the mud pumping branch pipes 722, and the mud pumping end of the mud pumping pump 71 is connected with the mud pumping main pipe 721; the mud pumping holes 723 are formed in the mud pumping branch pipes 722, a plurality of mud pumping holes 723 are formed in each mud pumping branch pipe 722, the mud pumping holes 723 are uniformly arranged in the mud pumping branch pipes 722 at intervals along the length direction of the mud pumping branch pipes 722, the mud pumping holes 723 are in a group, at least three groups of mud pumping holes 723 are formed in each mud pumping branch pipe 722, and the groups of mud pumping holes 723 are uniformly distributed in the mud pumping branch pipes 722 in a surrounding mode along the circumferential direction of the mud pumping branch pipes 722 so as to conduct all-dimensional pumping and cleaning on mud on the circumferential side of the mud pumping branch pipes 722.

Referring to fig. 5, in the present embodiment, three sets of sludge pumping holes 723 are formed, the three sets of sludge pumping holes 723 are respectively located at the top of the sludge pumping branch pipe 722 and at two horizontal sides of the sludge pumping branch pipe 722, and the sludge pumping holes 723 are matched with the sludge pumping branch pipe 722 and the sludge pumping pump 71, so that sludge at the bottoms of the primary filter tank 1, the flocculation sedimentation tank 2 and the recycling sedimentation tank 3 can be better pumped and cleaned.

When waste water volume of discharging is great, partial waste water can upwards recoil to the last pond in vivo, in order to avoid waste water recoil, the partition wall 4 between primary filter tank 1 and flocculation and precipitation pond 2 is close to one side upper portion of flocculation and precipitation pond 2 and the partition wall 4 between flocculation and precipitation pond 2 and the retrieval and utilization sedimentation pond 3 is close to one side upper portion of retrieval and utilization sedimentation pond 3 and all protrudes and is provided with recoil fender edge 41, recoil fender edge 41 can separate the waste water of recoil on partition wall 4 and keep off, avoid waste water backtracking recoil, improve the cleaning efficiency of sedimentation tank.

The concrete waste water multistage sedimentation tank's that this application embodiment is convenient for clear up implementation principle does: when the wastewater is subjected to precipitation treatment, the wastewater sequentially flows into the primary filtering tank 1, the flocculation sedimentation tank 2 and the recycling sedimentation tank 3 along the water inlet tank 11, and sand filtration, flocculation sedimentation and supernatant recycling are sequentially performed, in the process, the recycling mesh screen 61 in the sand recycling mechanism 6 can filter and intercept larger solid impurities such as sand and stone at the water inlet of the primary filtering tank 1, and the sand and stone can be conveniently cleaned and recycled; the sludge pumping mechanism 7 can extract sludge at the bottom of the primary filter tank 1, the flocculation sedimentation tank 2 and the recycling sedimentation tank 3, clear the sludge deposited at the bottom of the tank, ensure the precipitation efficiency of the primary filter tank 1, the flocculation sedimentation tank 2 and the recycling sedimentation tank 3 to wastewater, improve the cleaning efficiency of the sedimentation tank and be more effective in treating wastewater.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a concrete waste water multistage sedimentation tank convenient to clearance, includes primary filtering ponds (1), flocculation and precipitation pond (2) and retrieval and utilization sedimentation tank (3) that communicate in proper order, its characterized in that: a sand and stone recovery mechanism (6) is arranged in the primary filtering tank (1), the sand and stone recovery mechanism (6) comprises a recovery mesh screen (61) arranged at the water inlet of the primary filtering tank (1), the recovery mesh screen (61) is slidably and detachably connected in the primary filtering tank (1), and the recovery mesh screen (61) is used for filtering and intercepting sand and stones; the bottom of elementary filtering ponds (1), flocculation and precipitation pond (2) and retrieval and utilization sedimentation pond (3) all is provided with takes out mud mechanism (7), it is used for extracting the silt of deposit at elementary filtering ponds (1), flocculation and precipitation pond (2) and retrieval and utilization sedimentation pond (3) bottom of the pool to take out mud mechanism (7).

2. The concrete wastewater multistage sedimentation tank convenient to clean as claimed in claim 1, wherein: be provided with on the lateral wall of elementary filtering ponds (1), set up the spout that is suitable for with slide rail (12) sliding connection on retrieving mesh screen (61), retrieve mesh screen (61) and slide and can dismantle and connect on slide rail (12), just retrieve one side outer wall that mesh screen (61) is close to the water inlet and the lateral wall laminating of elementary filtering ponds (1).

3. The concrete wastewater multistage sedimentation tank convenient for cleaning according to claim 2, wherein: the sand recovery mechanism (6) further comprises a hoisting assembly (62), wherein the hoisting assembly (62) is used for hoisting the recovery mesh screen (61) from the primary filter tank (1); lifting by crane subassembly (62) including supporting seat (621), support pivot (622), bobbin (623), sling (624) and hand lever (625), supporting seat (621) set up in elementary filtering ponds (1) water inlet both sides relatively along waste water flow direction, bobbin (623) cover is established and rigid coupling in support pivot (622) middle part, the both ends of supporting pivot (622) are rotated and are connected on supporting seat (621), sling (624) twine on bobbin (623) and one end and bobbin (623) rigid coupling, sling (624) other end is connected with recovery mesh screen (61), hand lever (625) set up in the one end tip of supporting pivot (622).

4. The concrete wastewater multistage sedimentation tank convenient to clean of claim 3, wherein: retrieve and be provided with connecting cable (611) and rings (612) on mesh screen (61), connecting cable (611) evenly is provided with many, many connecting cable (611) are connected in the different sides of retrieving mesh screen (61), and many the equal one end of connecting cable (611) and retrieve mesh screen (61) rigid coupling, and the other end collects and the rigid coupling on rings (612), the one end rigid coupling that bobbin (623) were kept away from in lifting cable (624) has clasp (6241), rings (612) are suitable for and clasp (6241) lock joint.

5. The concrete wastewater multistage sedimentation tank convenient to clean as claimed in claim 4, wherein: the mud pumping mechanism (7) comprises three groups of mud pumping pumps (71) and mud pumping pipes (72), wherein the mud pumping pumps (71) and the mud pumping pipes (72) are respectively positioned at the bottoms of a primary filter tank (1), a flocculation sedimentation tank (2) and a recycling sedimentation tank (3), each group is formed by connecting a pumping end of the mud pumping pump (71) with the mud pumping pipes (72) positioned in the same tank, and each group is formed by extending the discharge end of the mud pumping pump (71) to the outside.

6. The concrete wastewater multistage sedimentation tank convenient to clean of claim 5, wherein: every group take out mud pipe (72) all include along the even many mud branch pipes (722) of taking out that set up of rivers direction, it is many it is located primary filtering ponds (1), flocculation and precipitation pond (2) and retrieval and utilization sedimentation pond (3) bottom of the pool respectively to take out mud branch pipe (722) are gone up and have all been seted up and have been taken out mud hole (723).

7. The concrete wastewater multistage sedimentation tank convenient to clean as claimed in claim 6, wherein: every take out mud hole (723) on mud branch pipe (722) and all seted up a plurality ofly, every take out a plurality of mud holes (723) on mud branch pipe (722) and divide into three group at least, every group take out mud hole (723) all along the length direction of taking out mud branch pipe (722) evenly and the interval is laid on taking out mud branch pipe (722), each group take out mud hole (723) along the circumferential direction of taking out mud branch pipe (722) evenly encircle to be laid on taking out mud branch pipe (722).

8. The concrete wastewater multistage sedimentation tank convenient to clean as claimed in claim 1, wherein: elementary filtering ponds (1), flocculation and precipitation pond (2) and retrieval and utilization sedimentation tank (3) bottom set up to the domatic of slope, all be provided with partition wall (4) between elementary filtering ponds (1) and flocculation and precipitation pond (2) and between flocculation and precipitation pond (2) and retrieval and utilization sedimentation tank (3), be located partition wall (4) between elementary filtering ponds (1) and flocculation and precipitation pond (2) are close to one side upper portion of flocculation and precipitation pond (2) and are located partition wall (4) between flocculation and precipitation pond (2) and retrieval and utilization sedimentation tank (3) and all protrude on one side upper portion that is close to retrieval and utilization sedimentation tank (3) and are provided with recoil fender along (41).

9. The concrete wastewater multistage sedimentation tank convenient to clean of claim 3, wherein: the hoisting assembly (62) further comprises a plug-in positioning piece (626), the plug-in positioning piece (626) is connected to one end of the supporting rotating shaft (622), a plug-in positioning groove (6213) is formed in the position, close to the supporting rotating shaft (622), of the supporting base (621), and the plug-in positioning piece (626) is suitable for being plugged in the plug-in positioning groove (6213).