CN221014665U - Silt slurry water recovery processing equipment - Google Patents

Abstract

The application belongs to the field of sewage treatment, and particularly relates to silt slurry water recovery treatment equipment which comprises an extrusion assembly and a filtering assembly, wherein the extrusion assembly comprises a plurality of pressing plates which are arranged in parallel, the filtering assembly comprises a plurality of filtering bags, the pressing plates are distributed at equal intervals in the horizontal direction, one filtering bag is arranged between every two adjacent pressing plates, and the orthographic projection of the filtering bags on the pressing plates falls in the range of the pressing plates.

Description

Silt slurry water recovery processing equipment

Technical Field

The application relates to the field of sewage treatment, in particular to silt slurry water recovery treatment equipment.

Background

Along with the promotion of the urban process, a large amount of domestic wastewater is generated in a large-scale human-made land every day, and sewage treatment is an important environmental problem, and a large amount of thick slurry between solids and liquids is generated in a physical method, a chemical method, a biological method or a combined treatment mode, and the slurry is rich in pollutants such as organic matters, heavy metals and the like and needs to be treated.

Because of the special properties of lower solid content, higher viscosity and the like in the sludge, the sludge can be conveyed through a pump valve, the filtering treatment effect is not ideal, the sludge is easy to block a filtering medium, the filtering effect is reduced, and the treatment efficiency is low. At present, for sludge treatment, dehydration is often carried out by adopting methods such as centrifugation, pressure filtration and the like.

However, while extrusion technology presents certain advantages in sludge treatment, it presents several problems. In contrast to conventional gravity filtration, gravity acts uniformly on all the substances to be treated, and the direct point of action of the extrusion filtration is the substances to be treated in the edge portion. Due to the physical properties of the sludge and the non-uniformity of the particle distribution, partial area pressure may be insufficient or excessive in the extrusion process, leading to instability of the treatment effect and reduction of the service life of extrusion equipment, which is particularly evident in the subsequent treatment of large sewage treatment plants or biological treatment tanks. Therefore, there is a need for a silt slurry back-pumping treatment device that ensures uniformity and stability of the extrusion process, further improving the efficiency and reliability of the sludge treatment.

Disclosure of utility model

In order to solve the problems, the application provides silt slurry water recovery treatment equipment which ensures that all parts of the silt slurry water to be treated are uniformly stressed in the filter pressing process.

The application provides a silt slurry water recovery treatment device which adopts the following technical scheme:

The utility model provides a silt thick liquid water recovery processing equipment, includes extrusion subassembly and filters out the subassembly, extrusion subassembly includes a plurality of parallel arrangement's clamp plate, it includes a plurality of filter bags to filter out the subassembly, the clamp plate equidistance distributes on the horizontal direction, is provided with one between every two adjacent clamp plates the filter bag, just the filter bag is in orthographic projection on the clamp plate falls in the within range of clamp plate.

By adopting the technical scheme, the filter bags and the pressing plates are alternately overlapped, so that all filter bags between the two pressing plates can be extruded only by applying force to the two pressing plates at the outermost sides to enable the two pressing plates to approach each other. In this case, since the pressure is transferred layer by layer via the pressure plate and the filter bags, when the device is in an equilibrium state, the acting forces between the filter bags and the pressure plate are equal, in other words, the pressures to which the filter bags are subjected are equal, that is, under the initial conditions of the filter bags, such as the filter bag size and the amount of the planted sediment slurry, the filter bags uniformly filter-press the sediment slurry therein. Even if the pressure of a local filter bag is increased in the loading process, the pressure of each filter bag can be adjusted in a self-adaptive manner with an adjacent structure in the subsequent loading process, so that the pressure born by each filter bag returns to an equal value.

Optionally, a convex rib is convexly arranged on a surface of the pressing plate, which is close to the adjacent pressing plate, and the convex rib on the contact surface of the pressing plate is meshed when the adjacent pressing plates are in close contact.

Through adopting above-mentioned technical scheme, when two clamp plates press close to each other, the existence of bead can increase the area of opposite face on the one hand, makes pressure more dispersion on the filter bag, and is more even to the extrusion of silt thick liquid, on the other hand, intermeshing's bead is when being close to, can provide the effect of alignment calibration to the clamp plate.

Optionally, the rib extends in a vertical direction.

By adopting the technical scheme, the filtrate oozing from the filter bag is gathered downwards under the action of gravity and is collected and treated.

Optionally, the extrusion assembly further comprises a guide rod, each pressing plate is provided with a guide hole with a size matched with the guide rod, and the guide rods penetrate through the guide holes and are horizontally arranged.

By adopting the technical scheme, the pressing plates slide along the guide rods under the action of pressure, are mutually extruded under the condition of keeping parallelism, the extrusion is more uniform, and the pressing plates are not slipped due to uneven surfaces of the filter bags or uneven particle distribution of filter residues.

Optionally, the guide rod is a prismatic rod, the guide hole is a prismatic hole matched with the guide rod, or a guide edge extending along the axis of the guide rod is arranged on the side surface of the guide rod, and a guide groove is formed in the side wall of the guide hole in a matched mode with the guide edge.

By adopting the technical scheme, the guide holes and the guide rods are in pure sliding fit without rotation, so that the dislocation of the pressing plate caused by the rotation of the pressing plate is avoided, and the similar effect can be realized through a plurality of symmetrically arranged guide rods in some embodiments of the application.

Optionally, the device for recycling and treating the slurry and the water further comprises a frame, wherein the frame comprises at least two guide rails which are horizontally arranged and parallel to each other, guide wheels matched with the guide rails are arranged on the side edges of each pressing plate, and the pressing plates are arranged on the guide rails through the guide wheel frames.

Through adopting above-mentioned technical scheme, the clamp plate is supported by the frame from both sides, makes the orbit of each clamp plate be the straight line with clamp plate surface vertically, avoids the guide arm to be pressed by the clamp plate and bends the whereabouts, leads to life reduction of equipment and the extrusion inhomogeneous that the clamp plate skew leads to.

Optionally, the pressing plate is in rolling connection with the guide wheel through a cylindrical roller bearing or a deep groove ball bearing.

Through adopting above-mentioned technical scheme, the frictional force that receives when the clamp plate removes on the guide rail is littleer, and the force that both sides clamp plate received can be applied to the filter bag by the bigger degree on, and the filter-pressing effect is better.

Optionally, the guide wheel is located at a position higher than the center of gravity of the corresponding pressing plate.

By adopting the technical scheme, when the pressing plate is placed on the guide rail, the gravity center is lower than the supporting point, and the pressing plate is naturally in a stable state.

Optionally, the slurry water recycling device further comprises a water collecting assembly, wherein the water collecting assembly comprises a pocket cloth and a conduit, the lower ends of every two adjacent pressing plates are covered by the pocket cloth, and the middle part of the pocket cloth sags and is used for receiving filtrate of the filtering assembly;

The lowest part of the pocket cloth is penetrated by the guide pipe, and one end of the guide pipe, which is far away from the pocket cloth, extends towards the direction far away from the extrusion assembly.

Through adopting above-mentioned technical scheme, the filtrate that every filter bag was filtered out by the clamp plate extrusion falls into the pocket cloth under the action of gravity, then gathers in pocket cloth minimum and is collected by the pipe is concentrated.

Optionally, the water collecting assembly further comprises a water collecting tank, the water collecting tank comprises a water outlet, the water outlet is the lowest point of the water collecting tank, the upper part of the water collecting tank is opened, and all the guide pipes are suspended on the water collecting tank.

By adopting the technical scheme, the filtrate collected by each guide pipe flows into the water collecting tank and then flows out of the water outlet under the action of gravity to be recycled.

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

1. The pressure born by each filter bag is the same, the silt slurry planted in each filter bag is uniformly extruded, and the solid-liquid separation effect is good;

2. under the action of the guide rod and the guide rail, each pressing plate moves along the direction vertical to the surface of the pressing plate and approaches to each other, and the pressure distribution is uniform;

3. The filtrate extruded from each filter bag is received by the pocket cloth and flows out through the guide pipe, and finally is collected by the water collecting tank and flows out from the water outlet in a concentrated way.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a silt slurry water recovery processing apparatus according to an embodiment of the present application;

FIG. 2 is a side view of a silt slurry water recovery processing apparatus according to an embodiment of the application;

fig. 3 is a cross-sectional view taken along line A-A of fig. 1.

Reference numerals illustrate:

1. An extrusion assembly; 11. a pressing plate; 111. a guide hole; 112. a guide wheel; 12. a guide rod; 13. a push rod; 21. a filter bag; 3. a frame; 31. a guide rail; 4. a water collection assembly; 41. cloth for pocket; 42. a conduit; 43. a water collection tank; 431. and a water outlet.

Detailed Description

The application is described in further detail below with reference to fig. 1-3.

The embodiment of the application discloses silt slurry water recovery treatment equipment.

Referring to fig. 1 and 2, the device for recycling and treating the slurry water comprises an extrusion assembly 1, a water filtering assembly, a water collecting assembly 4 and a frame 3, wherein the extrusion assembly 1 is used for pressing the water filtering assembly, so that the sludge loaded in the water filtering assembly is pressed and subjected to solid-liquid separation, filter residues remain in the water filtering assembly, filtrate flows down to the water collecting assembly 4 and is collected, and the frame 3 is used for bearing the extrusion assembly 1, the water filtering assembly and the water collecting assembly 4.

Referring to fig. 1 and 3, the pressing assembly 1 includes a pressing plate 11, a guide rod 12, and a push rod 13.

The pressing plates 11 are arranged in parallel, all the pressing plates 11 are at the same horizontal height, each pressing plate 11 is vertically arranged, continuous ribs are arranged on the surfaces close to the adjacent pressing plates 11, the ribs also extend in the vertical direction, and the ribs on the opposite surfaces of the adjacent pressing plates 11 are meshed with each other when the adjacent pressing plates 11 are attached.

The two guide rods 12 are arranged at the horizontal height of the center of gravity of the pressing plates 11 and are symmetrical relative to the center of gravity of the pressing plates 11, guide holes 111 are formed in each pressing plate 11 in a matched mode with the guide rods 12, and the guide rods 12 penetrate through each guide hole 111 to support the pressing plates 11. Preferably, the guide rod 12 is a prismatic rod, the guide hole 111 is a prismatic hole matched with the guide rod 12, or a guide edge extending along the axis of the guide rod 12 is arranged on the side surface of the guide rod 12, and a guide groove is formed on the side wall of the guide hole 111 in cooperation with the guide edge.

Each platen 11 further includes two guide wheels 112, where the guide wheels 112 are disposed at a position higher than the center of gravity of the platen 11, so that the platen 11 is naturally in a stable vertical state without being disturbed by external force. The pressing plate 11 is in rolling connection with the guide wheel 112 through bearings, and specifically, the bearings are one or two of cylindrical roller bearings or deep groove ball bearings. The axes of rotation of the two guide wheels 112 are coaxial and horizontal and parallel to the face of the platen 11 that is adjacent to the platen 11.

On the side of the two extreme pressure plates 11 facing away from each other, a push rod 13 is provided, which push rod 13 is used to exert pressure on the pressure plates 11 in order to slide them along the guide rods 12. The power source of the push rod 13 can be sprocket drive, hydraulic drive, screw rod sleeve, etc. Preferably, the push rod 13 is hinged to the geometric center of the push plate by a ball hinge to achieve uniform force application and to adaptively adjust for slight tilt disturbances of the platen 11.

Referring to fig. 2 and 3, the filtering assembly includes a plurality of filter bags 21, specifically, the number of filter bags 21 is one less than that of the pressing plates 11, one filter bag 21 is sandwiched between every two adjacent pressing plates 11, the size of the filter bags 21 after being completely flattened is equal to or smaller than that of the pressing plates 11, and in the whole process, as the filter bags 21 are deformed by the pressing plates 11, the orthographic projection of the filter bags 21 in the plane of the pressing plates 11 always falls into the range of the pressing plates 11. The filter bag 21 is made of corrosion and abrasion resistant materials such as polyester fiber, nylon or polypropylene, the aperture of the bag body is smaller than the solid size of the mud slurry to be treated, openings are arranged above and below the filter bag 21, the upper opening is used for loading the mud slurry to be treated, and the lower opening is used for pouring out filter residues.

The frame 3 includes two guide rails 31, the two guide rails 31 are located on the same horizontal line and are parallel to each other, and two guide wheels 112 of each pressing plate 11 are respectively arranged on the two guide rails 31. Each pressing plate 11 can freely move on the guide rail 31, and is in sliding fit with the guide rod 12 while being in rolling connection with the guide rail 31.

The water collecting assembly 4 is disposed below the pressing assembly 1 and the filtering assembly, and includes a plurality of cloths 41, a guide pipe 42, and a water collecting tank 43 below the cloths 41 and the guide pipe 42.

The pocket cloth 41 and the guide pipes 42 are arranged in one-to-one correspondence with the filter bags 21, one pocket cloth 41 is arranged between two adjacent pressing plates 11 corresponding to each filter bag 21, the pocket cloth 41 is made of watertight or slightly watertight materials, an alternative scheme is that the pocket cloth 41 is made of polyethylene films, and two side edges of the pocket cloth 41 are respectively connected with the lower edges of the two bottom plates. The middle area of the pocket cloth 41 is concave and used for converging filtrate, a water guide hole is formed in the lowest point of the pocket cloth 41, the guide pipe 42 penetrates through the water guide hole, the upper edge of the guide pipe 42 is flush with the upper edge of the water guide hole and fixedly connected with the water guide hole, the lower edge of the guide pipe 42 extends in a direction away from the filtering component, and preferably, the lower ends of all the guide pipes 42 are collinear.

The upper part of the water collection tank 43 is opened, and the lower ends of all the pipes 42 are inserted into the water collection tank 43, or the lower ends of the pipes 42 are suspended directly above the water collection tank 43, and the filtrate flowing out of the pipes 42 is received by the water collection tank 43. One end of the water collection tank 43 is provided with a water outlet 431.

Optionally, the bottom of the water collecting tank 43 is horizontal, the periphery is surrounded by a cofferdam, only the cofferdam at the position of the water outlet 431 is lower, and the height of the cofferdam at the recommended water outlet 431 is half of that of other positions, so that filtrate overflows from the water outlet 431 after being deposited in the water collecting tank 43, and on one hand, the water flow impact of the water outlet 431 can be slowed down; on the other hand, the sedimentation effect similar to a secondary sedimentation tank can be achieved on the filtrate to a certain extent.

In another embodiment, the water collection tank 43 is inclined, and the end of the water outlet 431 is the lowest part of the whole water collection tank 43. Accordingly, if the lower ends of the respective pipes 42 are collinear, the collinear line should be an inclined line parallel to the bottom of the water collection tank 43.

It should be noted that as the flow rate of the filtrate increases, the initial velocity of the filtrate flowing out of the conduit 42 increases accordingly, so that if the initial velocity is high, the water collection tank 43 located directly under the conduit 42 may not be able to fully receive the liquid flow ejected from the conduit 42, and therefore, it is preferable that the lower end of the conduit 42 is inserted into the water collection tank 43 or the conduit 42 is vertically arranged so that there is no horizontal component velocity of the liquid flow, and the initial velocity is increased again so as not to generate displacement in the horizontal direction.

The embodiment of the application provides a silt slurry water recovery treatment device, which has the implementation principle that:

When sewage is required to be treated, the push rod 13 is withdrawn first, the pressing plates 11 are in a free state, the pressing plates 11 are uniformly distributed, sediment slurry to be treated is poured into each filter bag 21, specifically, the opening above each filter bag 21 is opened, and after the sediment slurry is poured into the filter bags, the openings of the filter bags 21 are closed. Then, the push rods 13 are activated, and a power assembly such as a sprocket, a hydraulic rod, or the like drives the push rods 13 to apply pressure to the two outermost press plates 11, and each press plate 11 is rollingly moved on the guide rail 31 and slidably engaged with the guide rod 12. The pressing plates 11 press the filter bags 21 positioned between the pressing plates 11, liquid components with particles smaller than the pore diameter of the filter bags 21 in the filter bags 21 seep out from the bag walls of the filter bags 21 and drop downwards to be received by the pocket cloth 41, and the filtrate is converged at the lowest point of the pocket cloth 41 under the action of gravity and flows into the guide pipe 42. Subsequently, the filtrate flows out from the lower ends of the pipes 42, is collected in the water collecting tank 43, and the filtrate flowing out from each pipe 42 is concentrated and treated through the water outlet 431 by gravity.

Since the pressing force of the pressing assembly 1 is applied only to the outer sides of the two outermost pressing plates 11 to press them toward each other, the stress to which each filter bag 21 is subjected in the middle is derived from the layer-by-layer conduction of the filter bags 21 and the pressing plates 11, so that the compressive stress to which each filter bag 21 is subjected is the same when the apparatus is in a stable state. Therefore, even if the local pressure is uneven due to the pressure application point or the uneven slurry composition, in the subsequent extrusion process, the pressure stress applied to each filter bag 21 will automatically adjust the balance along with the movement of the pressing plate 11 on the guide rail 31, so that the slurry in each filter bag 21 is uniformly stressed, the uniformity and stability of the whole extrusion process are ensured, and the service life of the device is prolonged.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. Silt thick liquid water recovery processing equipment, its characterized in that includes extrusion subassembly (1) and filters out the subassembly, extrusion subassembly (1) includes a plurality of parallel arrangement's clamp plate (11), it includes a plurality of filter bags (21) to filter out the subassembly, clamp plate (11) equidistance distributes in the horizontal direction, is provided with one between every two adjacent clamp plates (11) filter bag (21), just filter bag (21) are in orthographic projection on clamp plate (11) falls in the scope of clamp plate (11).

2. The apparatus according to claim 1, wherein the pressing plate (11) is provided with a convex rib on a surface adjacent to the pressing plate (11), and the convex rib on the contact surface is engaged when the pressing plate (11) is attached.

3. The silt slurry recycling apparatus of claim 2 wherein said ribs extend in a vertical direction.

4. The apparatus according to claim 1, wherein the pressing assembly (1) further comprises a guide rod (12), each pressing plate (11) is provided with a guide hole (111) with a size matched with the guide rod (12), and the guide rods (12) penetrate through the guide holes (111) and are horizontally arranged.

5. The device for recycling slurry water according to claim 4, wherein the guide rod (12) is a prismatic rod, the guide hole (111) is a prismatic hole matched with the guide rod (12), or a guide edge extending along the axis of the guide rod (12) is arranged on the side surface of the guide rod (12), and a guide groove is formed on the side wall of the guide hole (111) in a matched mode with the guide edge.

6. The apparatus according to claim 1, further comprising a frame (3), wherein the frame (3) comprises at least two horizontally arranged guide rails (31) parallel to each other, guide wheels (112) cooperating with the guide rails (31) are provided on the side edges of each pressing plate (11), and the pressing plates (11) are erected on the guide rails (31) through the guide wheels (112).

7. The apparatus according to claim 6, wherein the platen (11) is in rolling connection with the guide wheel (112) by means of cylindrical roller bearings or deep groove ball bearings.

8. The apparatus according to claim 6, wherein the guide wheel (112) is located at a position higher than the center of gravity of the platen (11) to which it corresponds.

9. The slurry water recycling apparatus according to claim 1, further comprising a water collecting assembly (4), wherein the water collecting assembly (4) comprises a pocket cloth (41) and a conduit (42), the lower ends of each two adjacent pressing plates (11) are covered by the pocket cloth (41), and the middle part of the pocket cloth (41) sags to receive filtrate of the filtering assembly;

The lowest part of the pocket cloth (41) is penetrated by the guide pipe (42), and one end of the guide pipe (42) away from the pocket cloth (41) extends in a direction away from the extrusion assembly (1).

10. The apparatus according to claim 9, wherein the water collection assembly (4) further comprises a water collection tank (43), the water collection tank (43) comprising a water outlet (431), the water outlet (431) being the lowest point of the water collection tank (43), the water collection tank (43) being open at the top, all the conduits (42) being suspended on the water collection tank (43).