CN216764674U - Sludge concentrator - Google Patents

Abstract

The utility model discloses a sludge concentrator, and relates to the technical field of sewage treatment; the adopted technical scheme is as follows: a sludge concentrator comprises a centrifugal dehydrator and a discharge barrel, wherein the discharge barrel comprises a feeding section and a discharge section which are connected in sequence; the feeding section is communicated with the sludge output end of the centrifugal dehydrator, and the discharge end of the discharge section is matched with a back pressure component; the spiral blade is matched in the discharge barrel and used for conveying the sludge in the feeding section to the back pressure assembly; the ejection of compact section circumference is equipped with many circles of water holes, just ejection of compact section outer wall cover is equipped with the filter core section of thick bamboo. The sludge concentrator provided by the utility model can effectively carry out twice dehydration treatment on the settled slurry of the sewage treatment system, and can further reduce the water content in the sludge so as to reduce the volume of the sludge and facilitate the transfer of the sludge.

Description

Sludge concentrator

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a sludge concentrator.

Background

The sewage treatment is to treat the production and domestic sewage to reach the specified discharge standard, thereby protecting the environment. In a sewage treatment system, sludge generated by precipitation needs to be pumped into a sludge concentrator through a sludge pump for concentration treatment. In the prior art, in order to ensure the efficiency of sludge concentration, a centrifugal dehydrator is mostly adopted. Although the centrifugal dehydrator has high dehydration efficiency, the water content of the sludge dehydrated by the centrifugal dehydrator is still high.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problem that the sludge output by the existing sludge centrifugal dehydrator has higher water content; the utility model provides a sludge concentrator which can effectively carry out twice dehydration treatment on the settled slurry of a sewage treatment system and can further reduce the water content in the sludge so as to reduce the volume of the sludge and facilitate the transfer of the sludge.

The utility model is realized by the following technical scheme:

a sludge concentrator comprises a centrifugal dehydrator and a discharge barrel, wherein the discharge barrel comprises a feeding section and a discharge section which are connected in sequence; the feeding section is communicated with the sludge output end of the centrifugal dehydrator, and the discharge end of the discharge section is matched with a back pressure component; the spiral blade is matched in the discharge barrel and used for conveying the sludge in the feeding section to the back pressure assembly; go out the material section circumference and be equipped with many circles of water holes, just go out material section outer wall cover and be equipped with the filter core section of thick bamboo.

When the sludge dewatering device is used, the sludge pump is used for feeding the precipitated slurry in the sewage treatment system into the centrifugal dewatering device, the precipitated slurry enters the feeding section of the discharging barrel after being primarily dewatered by the centrifugal dewatering device, the sludge after primary dewatering is fed into the discharging section through the rotation of the spiral blades, the back pressure component is arranged at the discharging end of the discharging section, so that the sludge in the discharging section is discharged from the discharging section when the sludge reaches the opening pressure of the back pressure component, a plurality of circles of water passing holes are circumferentially arranged at the side of the discharging section, water in the sludge is output from the plurality of circles of water passing holes and is filtered by the filter element barrel, and the sludge is blocked in the discharging section, so that the sludge is dewatered again. Therefore, the sludge concentrator provided by the utility model can effectively carry out twice dehydration treatment on the settled sludge of the sewage treatment system, and can further reduce the water content in the sludge so as to reduce the volume of the sludge and facilitate the transfer of the sludge.

In an optional embodiment, the back pressure assembly comprises a guide rod, a back pressure plate, a back pressure spring and a limiting member; the guide rod and the helical blade are coaxially arranged, the back pressure plate is sleeved outside the guide rod, and the back pressure plate can move along the length direction of the guide rod; the locating part is located the guide bar is kept away from the one end of play feed cylinder, the backpressure spring is located backpressure board with between the locating part, for adopting the backpressure valve, can ensure that the ejection of compact section has sufficient flow area for the mud after twice dehydration can discharge smoothly.

In an optional embodiment, the position of the limiting piece in the length direction of the guide rod is variable, so that the water content of the sludge dehydrated by the centrifugal dehydrator is basically adjusted, the opening pressure of the backpressure component is adjusted, and the production efficiency of sewage dehydration is ensured while the water content of the sewage is ensured within a set range.

In an optional embodiment, the position limiting member is screwed with the guide rod so as to adjust the position of the position limiting member.

In an optional embodiment, the position-limiting member is a nut to simplify the structure of the back pressure assembly.

In an alternative embodiment, the cartridge is removably connected to the outfeed section to facilitate replacement, cleaning and maintenance of the cartridge.

In an optional embodiment, a water collecting groove is arranged below the discharging section so as to collect clear water extruded from the discharging end.

In an optional embodiment, the discharging barrel is arranged in a downward inclined mode, and the waterproof clean water flows back to the centrifugal dehydrator along the discharging barrel.

In an optional embodiment, a water retaining ring is arranged outside the discharging section, and the water retaining ring is positioned at one end of the filter core barrel, which is far away from the centrifugal dehydrator, so as to prevent clear water from flowing to the discharging end of the discharging barrel along the discharging barrel.

The utility model has the following beneficial effects:

according to the sludge concentrator provided by the utility model, after the sludge is primarily dewatered by the centrifugal dehydrator, the primarily dewatered sludge is fed into the discharging section through the rotation of the spiral blades, the back pressure assembly is arranged at the discharging end of the discharging section, so that the sludge in the discharging section is discharged from the discharging section when the opening pressure of the back pressure assembly is reached, a plurality of circles of water passing holes are circumferentially arranged at the side of the discharging section, water in the sludge is output from the circles of water passing holes and filtered by the filter element cylinder, and the sludge is blocked in the discharging section, so that the sludge is subjected to secondary dewatering treatment, the water content in the sludge can be further reduced, the volume of the sludge is reduced, and the sludge is convenient to transfer.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural view of a sludge thickener according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Reference numerals:

1-centrifugal dehydrator, 2-discharging barrel, 21-feeding section, 22-discharging section, 221-water passing hole, 23-helical blade, 24-water retaining ring, 3-back pressure component, 31-guide rod, 32-back pressure plate, 33-back pressure spring, 34-limiting piece, 4-filter core barrel and 5-water collecting tank.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, the terms "central," "upper," "lower," "left," "right," "vertical," "longitudinal," "lateral," "horizontal," "inner," "outer," "front," "rear," "top," "bottom," and the like refer to orientations or positional relationships that are conventionally used in the manufacture of the present application, or that are routinely understood by those of ordinary skill in the art, but are merely used to facilitate the description and to simplify the description and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "open," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Examples

With reference to fig. 1 and 2, the present embodiment provides a sludge concentrator, which includes a centrifugal dehydrator 1 and a discharging barrel 2, wherein the discharging includes a feeding section 21 and a discharging section 22 connected in sequence; the feeding section 21 is communicated with the sludge output end of the centrifugal dehydrator 1, and the discharge end of the discharge section 22 is matched with the backpressure component 3; a helical blade 23 is adapted in the discharging barrel 2, and the helical blade 23 is used for conveying sludge in the feeding section 21 to the backpressure assembly 3; the circumference of the discharging section 22 is provided with a plurality of circles of water holes 221, and the outer wall of the discharging section 22 is sleeved with a filter element cylinder 4.

Specifically, the back pressure assembly 3 includes a guide rod 31, a back pressure plate 32, a back pressure spring 33, and a stopper 34; the guide rod 31 and the helical blade 23 are coaxially arranged, the back pressure plate 32 is sleeved outside the guide rod 31, and the back pressure plate 32 can move along the length direction of the guide rod 31; the limiting part 34 is located at one end of the guide rod 31 far away from the discharge cylinder 2, the backpressure spring 33 is located between the backpressure plate 32 and the limiting part 34, and compared with a backpressure valve, the back pressure spring can ensure that the discharge section 22 has enough flow area, so that sludge after twice dewatering can be smoothly discharged.

Preferably, the position of the stopper 34 in the longitudinal direction of the guide bar 31 is variable to adjust the opening pressure of the back pressure unit 3 based on the water content of the sludge dehydrated by the centrifugal dehydrator 1, thereby ensuring the water content of the sewage within a predetermined range and the efficiency of sewage dehydration.

Specifically, the limiting member 34 is screwed with the guide rod 31, so as to adjust the position of the limiting member 34. Of course, the limiting member 34 may be pinned to the guide rod 31 by a limiting pin

Preferably, the position-limiting member 34 is a nut to simplify the structure of the back pressure assembly 3.

Preferably, the filter cartridge 4 is detachably connected to the discharge section 22 to facilitate replacement, cleaning and maintenance of the filter cartridge 4. Usually, the filter cartridge 4 comprises two semi-circular shells hinged to each other, and the other sides of the two semi-circular shells are fixedly connected through bolts or clamped through clamping grooves. The filter cartridge 4 is usually of a structure in which a quartz sand layer is wrapped with a filter cloth.

Further, a water collecting groove 5 is arranged below the discharging section 22 so as to collect clear water extruded from the discharging end.

Preferably, the discharging barrel 2 is arranged in a downward inclined mode, and waterproof clear water flows back to the centrifugal dehydrator 1 along the discharging barrel 2.

Preferably, a water retaining ring 24 is arranged outside the discharging section 22, and the water retaining ring 24 is positioned at one end of the filter element cylinder 4 far away from the centrifugal dehydrator 1 to prevent clear water from flowing to the discharging end of the discharging cylinder 2 along the discharging cylinder 2.

During the use, send into centrifugal dehydrator 1 through the mud pump with the sediment mud in the sewage treatment system, sediment mud gets into out the feeding section 21 of feed cylinder 2 after centrifugal dehydrator 1 preliminarily dewaters in, send into ejection of compact section 22 with the mud after preliminary dewatering through helical blade 23's rotation, owing to be provided with backpressure subassembly 3 at the discharge end of ejection of compact section 22 for when the mud in ejection of compact section 22 reaches the opening pressure of backpressure subassembly 3, square from ejection of compact section 22 discharges. And be equipped with many circles of water holes 221 in ejection of compact section 22 side circumference, water in the mud is followed many circles of water holes 221 output and is filtered through filter element section of thick bamboo 4, keeps off mud in ejection of compact section 22 to carry out dehydration once more to mud, can further reduce the water content in the mud, with the volume that reduces mud and be convenient for shift mud.

The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto in any way, and any simple modification, equivalent replacement and improvement made to the above embodiment within the spirit and principle of the present invention still fall within the protection scope of the present invention.

Claims (9)

1. A sludge concentrator comprises a centrifugal dehydrator (1) and is characterized by also comprising a discharging barrel (2), wherein the discharging comprises a feeding section (21) and a discharging section (22) which are connected in sequence; the feeding section (21) is communicated with the sludge output end of the centrifugal dehydrator (1), and the discharge end of the discharge section (22) is matched with the backpressure component (3); a spiral blade (23) is adapted in the discharging barrel (2), and the spiral blade (23) is used for conveying the sludge in the feeding section (21) to the back pressure assembly (3); go out material section (22) circumference and be equipped with many circles water hole (221), just go out material section (22) outer wall cover and be equipped with filter core section of thick bamboo (4).

2. Sludge concentrator according to claim 1, wherein the back pressure assembly (3) comprises a guide rod (31), a back pressure plate (32), a back pressure spring (33) and a stopper (34); the guide rod (31) and the helical blade (23) are coaxially arranged, the back pressure plate (32) is sleeved outside the guide rod (31), and the back pressure plate (32) can move along the length direction of the guide rod (31); the limiting part (34) is located at one end, far away from the discharge barrel (2), of the guide rod (31), and the back pressure spring (33) is located between the back pressure plate (32) and the limiting part (34).

3. The sludge concentrator according to claim 2, wherein the position of the stopper (34) in the longitudinal direction of the guide rod (31) is variable.

4. Sludge concentrator according to claim 3, wherein the stop (34) is in threaded connection with the guide rod (31).

5. The sludge concentrator of claim 4 wherein the stop (34) is a nut.

6. Sludge concentrator according to claim 1, wherein the filter cartridge (4) is detachably connected to the discharge section (22).

7. Sludge concentrator according to claim 1, characterized in that a water collection tank (5) is arranged below the discharge section (22).

8. Sludge concentrator according to any of the claims 1-7, wherein the outlet barrel (2) is arranged obliquely downwards.

9. The sludge concentrator according to claim 8, wherein a water retaining ring (24) is arranged outside the discharge section (22), and the water retaining ring (24) is positioned at one end of the filter core barrel (4) far away from the centrifugal dehydrator (1).

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