TWI796854B - Pipeline energy-saving sludge eliminator - Google Patents

Abstract

A pipeline type energy-saving sludge eliminator, comprising a water removal body, the water removal body includes a first inner ring, a second inner ring spaced apart from the first inner ring in an axial direction, and a number of rings along the axis The filter rod extending to and fixed on the first inner ring and the second inner ring, the first inner ring defines a first inner hole and has a first outer peripheral surface, the second inner ring defines a The second inner hole has a second outer peripheral surface, the filter rods are equidistantly arranged on the first outer peripheral surface of the first inner ring and the second outer peripheral surface of the second inner ring, and cooperate to define a communication In the inner space of the first inner hole and the second inner hole, a filtering gap communicating with the inner space is formed between any two adjacent filter rods.

Description

Pipeline energy-saving sludge eliminator

The invention relates to a water eliminator, in particular to a pipeline type energy-saving sludge water eliminator.

As shown in Figure 1, a conventional sludge dewatering system for industrial wastewater treatment includes a concentration tank 1 located downstream of a floatation tank (not shown), a sludge pump communicated with the concentration tank 1 2. A conveying pipeline 3 connected with the sludge pump 2, a belt dehydrator 4 located at the end of the conveying pipeline 3, and a sludge dehydrator that can receive the sludge discharged from the belt dehydrator 4 bucket 5.

Generally speaking, the wastewater from the current industrial wastewater treatment to the later stage, after being quickly mixed with coagulant aids, the sludge (glue plume scum) is scraped off by the flotation tank, because the sludge contains high moisture, it is still The sludge must be further transported to the thickening tank 1 to allow the sludge to settle in the thickening tank 1 to reduce the gap between the rubber plumes and increase the concentration so that the moisture content of the sludge can be reduced to about 95%. After that, The sludge pump 1 can transport the sludge to the belt dehydrator 4 through the conveying pipeline 2, so as to further remove the moisture contained in the sludge and further reduce its moisture content to about 86%. Wherein, the water content of the scum scraped by the floatation tank, the settling time in the thickening tank 1 and the effect of coagulation and sedimentation can all affect the water content of the sludge when it is removed from the thickening tank 1 .

This kind of sludge dewatering system generally uses the sludge pump 2 to pressurize the sludge during the sludge transportation process, and transports the sludge from the thickening tank 1 located in the outdoor treatment field to the indoor tank via the delivery pipeline 3. Belt dehydrator 4, in the process of conveying through the conveying pipeline 3, although its conveying distance is very long, the moisture content of the sludge will not decrease during the conveying process. In addition, due to various Both the transfer pump (such as the sludge pump 1 ) and the dehydrator (such as the belt dehydrator 4 ) are energy-intensive equipment and require manpower to operate. Therefore, the operating cost of this sludge dewatering system is high.

Therefore, the object of the present invention is to provide a pipeline type energy-saving sludge eliminator that can overcome at least one shortcoming of the prior art.

Therefore, the pipeline type energy-saving sludge water eliminator of the present invention includes a water removal body.

The dewatering body includes a first inner ring, a second inner ring spaced apart from the first inner ring in an axial direction, and a number extending along the axial direction and fixed on the first inner ring and the second inner ring. A ring filter rod, the first inner ring defines a first inner hole and has a first outer peripheral surface, the second inner ring defines a second inner hole and has a second outer peripheral surface, the filter The rods are equally spaced on the first outer peripheral surface of the first inner ring and the second outer peripheral surface of the second inner ring, and cooperate to define an inner space communicating with the first inner hole and the second inner hole, A filtering gap communicating with the inner space is formed between any two adjacent filter rods.

The effect of the present invention is that: the present invention utilizes the design of the filter gap formed between any two adjacent filter rods of the dewatering body, so that the sludge in the dewatering body can filter out water by itself while flowing, so , not only does not require additional energy consumption, but also improves the operating efficiency of the belt dehydrator. In addition, the filter rods of the dewatering body of the present invention extend along the axial direction and are arranged in a tubular shape in the circumferential direction. The extension direction of the filter rods is in the same direction as the flow direction of the sludge, which can effectively reduce the sludge passing through the sludge. Wait for the resistance of the filter rod to allow the sludge to pass through with high smoothness and low resistance, so as to reduce the output of the sludge pump and reduce energy consumption.

Referring to FIG. 12 , it is a schematic diagram of an embodiment of the pipeline energy-saving sludge eliminator of the present invention applied to a sludge dewatering system 200. In this embodiment, the sludge dewatering system 200 includes a thickening tank 210, A sludge pump 220 located downstream of the thickening tank 210, a sludge bucket 230 located downstream of the sludge pump 220, and a return pipe 240 for recycling waste water, and the pipeline type energy-saving sludge dewatering of the present invention The device includes two variations, that is, a water eliminator 100I located at the downstream end of the pipeline and upstream of the sludge hopper 230, and a number of water eliminators 100I connected in series between the sludge pump 220 and the water eliminator 100I The water eliminator 100II, the water eliminator 100I and the water eliminators 100II are connected in series to form a pipeline 250 connected between the sludge pump 220 and the sludge hopper 230 .

As shown in FIGS. 2 , 3 , and 4 , the water eliminator 100I includes a water eliminator body 10 , an end cover set 20 , a connection assembly 30 , and a water return outer sleeve 40 .

The dewatering body 10 includes a first inner ring 11, a second inner ring 12 spaced apart from the first inner ring 11 in an axial direction X, extending along the axial direction X and fixed on the first inner ring 12. The filter rods 13 of the inner ring 11 and the second inner ring 12 , and three outer bundle ring groups 14 arranged at intervals in the axial direction X and restraining the filter rods 13 . It can be understood that, in other variations of this embodiment, the number of the outer beam ring sets 14 may also be two or more than three.

The first inner ring 11 has a first outer peripheral surface 111 and defines a first inner hole 112 . The second inner ring 12 has a second outer peripheral surface 121 and defines a second inner hole 122 .

As shown in Figures 4, 5, and 6, the filter rods 13 are arranged at equal intervals on the first outer peripheral surface 111 of the first inner ring 11 and the second outer peripheral surface 121 of the second inner ring 12, and cooperate to define An inner space 131 communicating with the first inner hole 112 and the second inner hole 122 , a filtering gap t communicating with the inner space 131 is formed between any two adjacent filter rods 13 .

In this embodiment, the cross section of each filter rod 13 is circular, the material of each filter rod 13 is stainless steel, the filter gap t is not greater than 14.7 μm (0.0147mm), and these filter rods 13 are welded on the first inner ring 11 and the second inner ring 12 .

It should be noted that the particle size distribution of general sludge is 90 μm to 165 μm (0.09 mm to 0.165 mm), and the average diameter of water molecular clusters in ordinary water is 2.6 nm (2.6 nanometers). Therefore, only liquid substances or low viscosity Liquid fluids, whose molecules or condensates have a volume smaller than the filter gap t, can pass through the filter gap t, and other solid substances or high-viscosity liquid fluids cannot pass through the filter gap t, that is, the filter gap t The water in the sludge can be easily filtered out, but the solid matter of the sludge will not be lost.

As shown in Figures 3, 4, and 5, two of the outer beam ring sets 14 are respectively adjacent to the first inner ring 11 and the second inner ring 12, and the remaining one of the outer beam ring sets 14 is adjacent to the first inner ring 11 and the second inner ring 12 respectively. Between the two of the outer beam ring sets 14 .

Each outer beam ring group 14 includes a ring body 141, two locking blocks 142 connected to the two ends of the ring body 141, a locking bolt 143, and a locking nut 144, each locking block 142 is formed with a through hole 145 , the locking bolt 143 passes through the through hole 145 of the locking blocks 142 and is screwed with the locking nut 144 to force the ring body 141 to bind the filter rods 13 .

The end cover set 20 is arranged on the dewatering body 10 and is adjacent to the first inner ring 11. The end cover set 20 includes a sewage pipe 21, a cover 22 pivotally arranged on the sewage pipe 21, and a counterweight twenty three.

In this embodiment, the sewage pipe 21 has a pipe body 211 and a protrusion 212 fixed on the outer peripheral surface of the pipe body 211, the pipe body 211 has an oblique outlet end 213, and the pipe body 211 defines A drain hole 214 communicating with the first inner hole 112 of the first inner ring 11 is provided. In addition, the pipe body 211 of the drain pipe 21 is the ring of the outer bundle ring group 14 adjacent to the first inner ring 11. The body 141 is butt welded together.

The cover 22 is used to cover the drain hole 214. In this embodiment, the cover 22 has a cover plate 221, and two pivot ears 222 arranged at intervals on the outer surface of the cover plate 221 and pivotally connected with the projection 212. , and a counterweight bolt 223 locked on the cover plate 221 .

The counterweights 23 are detachably arranged on the counterweight bolts 223 and located on the outer surface of the cover 221 of the cover 22 , and the counterweights 23 are used to make the cover 221 of the cover 22 against the tube body 211 The inclined outlet end 213. It can be understood that the function of the counterweights 23 is to adjust the internal pressure inside the pipeline 250 (see FIG. 12 ), and the user can increase or decrease the counterweights 23 according to the actual pressure in the pipeline. number to adjust the total weight of the counterweight.

The connection assembly 30 is arranged on the water removal body 10 and is adjacent to the second inner ring 12. The connection assembly 30 includes a connection pipe 31 and a flange 32 arranged on the connection pipe 31. The connection pipe 31 defines a A communication hole 311 communicates with the second inner hole 122 of the second inner ring 12 , and the flange 32 has a digital locking hole 321 . In this embodiment, the connecting tube 31 is butt-welded with the ring body 141 of the outer bundle ring set 14 adjacent to the second inner ring 12 .

The backwater outer casing 40 includes an outer casing 41 connected to the sewage pipe 21 of the end cap assembly 20 and the connecting pipe 31 of the connecting assembly 30 , and an outlet pipe 42 disposed on the outer casing 41 .

The outer casing 41 covers the dewatering body 10 and defines a drainage space 411, the dewatering body 10 is located in the drainage space 411, and the end of the end cover group 20 is located in the drainage space. 411 , the inward end of the connecting pipe 31 of the connection assembly 30 is located in the drainage space 411 , and the water outlet pipe 42 defines a water outlet hole 421 communicating with the drainage space 411 .

As shown in Figures 7, 8, and 9, each water eliminator 100II includes a water removal body 10, two connecting components 30, and a backwater outer sleeve 40, wherein each water eliminator 100II is connected to the water eliminator 100I The difference is that each water eliminator 100II replaces the end cover group 20 (see FIG. 2 ) of the water eliminator 100I with another connection assembly 30, in addition, each water eliminator 100II water removal body 10, The structure of the connection assembly 30 and the backwater outer sleeve 40 is the same as that of the water removal body 10, the connection assembly 30 and the return water outer sleeve 40 of the water eliminator 100I, only in terms of size (such as the length in the axial direction X) With slight adjustments, elements of each eliminator 100II that are similar to the eliminator 100I are numbered the same.

The dewatering body 10 includes a first inner ring 11, a second inner ring 12 spaced apart from the first inner ring 11 in an axial direction X, extending along the axial direction X and fixed on the first inner ring 12. The filter rods 13 of the inner ring 11 and the second inner ring 12 , and three outer bundle ring groups 14 arranged at intervals in the axial direction X and restraining the filter rods 13 . It can be understood that, in other variations of this embodiment, the number of the outer beam ring sets 14 may also be two or more than three.

The first inner ring 11 has a first outer peripheral surface 111 and defines a first inner hole 112 . The second inner ring 12 has a second outer peripheral surface 121 and defines a second inner hole 122 .

As shown in Figures 9, 10, and 11, the filter rods 13 are arranged at equal intervals on the first outer peripheral surface 111 of the first inner ring 11 and the second outer peripheral surface 121 of the second inner ring 12, and cooperate to define An inner space 131 communicating with the first inner hole 112 and the second inner hole 122 , a filtering gap t communicating with the inner space 131 is formed between any two adjacent filter rods 13 .

In this embodiment, the cross section of each filter rod 13 is circular, the material of each filter rod 13 is stainless steel, the filter gap t is not greater than 14.7 μm (0.0147mm), and these filter rods 13 are welded on the first inner ring 11 and the second inner ring 12 .

As shown in Figures 8, 9, and 10, two of the outer beam ring sets 14 are respectively adjacent to the first inner ring 11 and the second inner ring 12, and the remaining one of the outer beam ring sets 14 is adjacent to the first inner ring 11 and the second inner ring 12 respectively. Between the two of the outer beam ring sets 14 .

Each outer beam ring group 14 includes a ring body 141, two locking blocks 142 connected to the two ends of the ring body 141, a locking bolt 143, and a locking nut 144, each locking block 142 is formed with a through hole 145 , the locking bolt 143 passes through the through hole 145 of the locking blocks 142 and is screwed with the locking nut 144 to force the ring body 141 to bind the filter rods 13 .

One of the connecting components 30 is arranged on the dewatering body 10 and is adjacent to the first inner ring 11, and the other connecting component 30 is arranged on the dewatering body 10 and is adjacent to the second inner ring 12, and each connecting component 30 includes A connecting pipe 31, and a flange 32 arranged on the connecting pipe 31, the connecting pipe 31 defines a communication hole 311, the flange 32 has a digital locking hole 321, the connecting pipe of one of the connecting components 30 The communication hole 311 of 31 communicates with the first inner hole 112 of the first inner ring 11 , and the communication hole 311 of the connecting pipe 31 of the other connecting assembly 30 communicates with the second inner hole 122 of the second inner ring 12 . In this embodiment, the connecting tube 31 of one of the connecting components 30 is butt-welded with the ring body 141 of the outer bundle ring set 14 adjacent to the first inner ring 11 . The connecting pipe 31 of the other connecting assembly 30 is butt-welded with the ring body 141 of the outer bundle ring set 14 adjacent to the second inner ring 12 .

The backwater outer sleeve 40 includes an outer casing 41 connected to the connecting pipes 31 of the connecting components 30, and a water outlet pipe 42 arranged on the outer casing 41, and the outer casing 41 covers the dewatering body 10, and defines a drainage space 411, the dewatering body 10 is located in the drainage space 411, and the water outlet pipe 42 defines a water outlet hole 421 communicating with the drainage space 411.

As shown in Fig. 12, it can be understood that the flange 32 of the connection assembly 30 of the water eliminator 100I and the flange 32 of the connection assembly 30 of the adjacent water eliminator 100II can be locked together by bolts , the flanges 32 of the connecting components 30 of any two adjacent water eliminators 100II can also be locked together by bolts.

Thereby, as shown in Figures 4, 9, and 12, when the sludge dewatering system 200 utilizes the sludge pump 220 to pressurize, the sludge is transferred from the thickening tank 210 located in the outdoor treatment field through the water eliminator 100I When the pipeline 250 formed in series with the water eliminators 100II is transported to the sludge hopper 230 located in the room, the sludge is transported along the water eliminators 100I and the water eliminators 100II by the delivery pressure. During the process, the moisture in the sludge will automatically flow from the filtration gap t of the water removal body 10 of the water eliminator 100I (see Figure 6) and the filtration gap t of the water removal body 10 of each water eliminator 100II (see Fig. 11) gradually filter out, and flow into the drainage space 411 of the backwater outer casing 40 of the water eliminator 100I and the drainage space 411 of the backwater outer casing 40 of each water eliminator 100II, and pass through the water eliminator The outlet pipe 42 of the backwater outer set 40 of 100I and the outlet pipe 42 of the backwater outer set 40 of each water eliminator 100II flow into the return pipe 240, and the return pipe 240 can recycle waste water and discharge it to a former waste water tank ( (not shown in the figure), at the same time, after the solid matter in the sludge accumulates to the full pipe in the pipeline 250, it will continue to advance to the downstream end of the pipeline 250 by the rear thrust, and finally the end of the water eliminator 100I The cover 22 of the cover set 20 is pushed open and falls into the sludge hopper 230 . It can be understood that the greater the pressure caused by the rear thrust, the more moisture will be filtered out from the sludge, and the lower the water content of the solid matter in the sludge, the inner pressure of the pipeline 250 can be used The counterweight of the counterweight 23 of the end cover group 20 of the water eliminator 100I is adjusted.

Through the above description, the advantages of the present invention can be summarized as follows:

1. Compared with the conventional technology, the present invention allows the sludge in the water eliminator 100I and the water eliminators 100II to filter out water while flowing, not only does not require additional energy consumption, but at the same time, if the The sludge dewatering system 200 replaces the sludge hopper 230 with the known belt dehydrator 4, and the present invention can also improve the conventional belt dehydration under the condition that the sludge has been pre-filtered to remove part of the water. In addition, in practice, when the time, pressure and distance are properly matched, if the moisture content of the sludge at the end of the pipe can be lower than 86%, it can completely replace the conventional belt dehydrator 4 function, and further save 12.5KW of energy consumption, that is to say, the sludge dewatering system 200 can also produce the same dewatering effect under the situation of omitting the known belt dehydrator 4, so, that is Energy consumption and operating manpower can be effectively reduced, and the operating cost of the sludge dewatering system 200 can be reduced.

2. The filter rods 13 of the dewatering body 10 of the water eliminator 100I and the water eliminator 100II of the present invention extend along the axis X and are arranged in a tubular shape in the circumferential direction. The extension direction of the filter rods 13 is in line with the sludge The flow direction of the sludge pump is forward, which can effectively reduce the resistance when the sludge passes through the filter rods 13, so that the sludge passes through smoothly and with low resistance, so as to reduce the output of the sludge pump 220, thereby reducing energy consumption .

3. The end cover group 20 of the water eliminator 100I located at the end of the pipeline 250 of the present invention can increase or decrease the total weight of the counterweights 23 according to the actual pressure in the pipeline to achieve the effect of adjusting the pressure in the pipeline, which is simple It is practical and does not need to set up expensive lighting pressure control equipment.

4. The pipeline 250 composed of the water eliminator 100I and the water eliminator 100II of the present invention can be adjusted in size and length according to the actual needs of the sludge water removal system 200, and is designed according to the general piping method, and is not affected by terrain and space The limits can be applied to different sludge removal systems 200 .

To sum up, the pipeline-type energy-saving sludge eliminator of the present invention can not only allow the sludge to filter out water while flowing, but also can effectively reduce energy consumption and operating manpower, so that the operation of the sludge dewatering system The cost is reduced, so the purpose of the present invention can be really achieved.

But what is described above is only an embodiment of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

100Ⅰ: Water eliminator 100Ⅱ: Water eliminator 10: Water removal body 11: First Inner Ring 111: the first outer peripheral surface 112: the first inner hole 12: Second inner ring 121: the second outer peripheral surface 122: Second inner hole 13: filter rod 131: Internal space 14: Outer beam ring set 141: ring body 142: lock block 143: locking bolt 144: lock nut 145: perforation 20: End cap group 21: Sewage pipe 211: pipe body 212: bump 213: Oblique exit port 214: Sewage hole 22: cover 221: cover plate 222: Shu ear 223: Counterweight bolt 23: Counterweight 30: Connection components 31: connecting pipe 311: Connecting hole 32: Flange 321: lock hole 40: backwater outer kit 41: Outer tube shell 411: drainage space 42: Outlet pipe 421: outlet hole t: filter gap X: Axial 200: Sludge removal system 210: concentration tank 220: Sludge pump 230: sludge bucket 240: return pipe 250: pipeline 1: concentration tank 2: Sludge pump 3: Delivery pipeline 4: Belt dehydrator 5: sludge bucket

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is a configuration diagram of a conventional sludge dewatering system; Fig. 2 is a perspective view of the first variation of an embodiment of the pipeline type energy-saving sludge water eliminator of the present invention; Fig. 3 is a perspective view of the first variation of the embodiment after removing a backwater outer casing; Fig. 4 is a combined sectional view of the first variation of the embodiment; Fig. 5 is a cross-sectional view taken along line V-V among Fig. 4; Fig. 6 is an incomplete partial enlarged view of Fig. 5; Fig. 7 is a perspective view of the second variation of the embodiment; Fig. 8 is a perspective view of the second variation of the embodiment after removing a backwater outer casing; Fig. 9 is a combined sectional view of the second variation of the embodiment; Fig. 10 is a sectional view taken along the line X-X in Fig. 9; Figure 11 is an incomplete partial enlarged view of Figure 10; and Fig. 12 is a schematic configuration diagram of a sludge dewatering system using this embodiment.

100 I:Drizzle eliminator

10: Water removal body

11: First Inner Ring

111: the first outer peripheral surface

112: the first inner hole

12: Second inner ring

121: the second outer peripheral surface

122: Second inner hole

13: filter rod

131: Internal space

14: Outer beam ring set

141: ring body

20: End cap group

21: Sewage pipe

211: pipe body

212: bump

213: Oblique exit port

214: Sewage hole

22: cover

221: cover plate

222: Shu ear

223: Counterweight bolt

23: Counterweight

30: Connection components

31: connecting pipe

311: Connecting hole

32: Flange

321: lock hole

40: backwater outer kit

41: Outer tube shell

411: drainage space

42: Outlet pipe

421: outlet hole

X: Axial

Claims (10)

A pipeline type energy-saving sludge eliminator, comprising: A water removal body, including a first inner ring, a second inner ring spaced apart from the first inner ring in an axial direction, and a number extending along the axial direction and fixed between the first inner ring and the second inner ring A filter rod with an inner ring, the first inner ring defines a first inner hole and has a first outer peripheral surface, the second inner ring defines a second inner hole and has a second outer peripheral surface, the The filter rods are equally spaced on the first outer peripheral surface of the first inner ring and the second outer peripheral surface of the second inner ring, and cooperate to define an inner space communicating with the first inner hole and the second inner hole , A filter gap communicating with the inner space is formed between any two adjacent filter rods. The pipeline type energy-saving sludge water eliminator according to claim 1, wherein the filtration gap is not greater than 14.7 μm. The pipeline type energy-saving sludge eliminator according to claim 1, wherein the cross-section of each filter rod is circular, and the material of each filter rod is stainless steel. The pipeline type energy-saving sludge water eliminator as described in claim 1, wherein the dewatering body also includes several outer bundle ring groups arranged at intervals in the axial direction and bound the filter rods, and the outer bundle ring groups Two of them are respectively adjacent to the first inner ring and the second inner ring. The pipeline type energy-saving sludge water eliminator as described in claim 4, wherein the dewatering body includes three outer bundle ring groups, and each outer bundle ring group includes a ring body and two locks connected to the two ends of the ring body Blocks, a locking bolt, and a locking nut, each locking block is formed with a through hole, the locking bolt passes through the holes of the locking blocks and is screwed with the locking nut, so that the ring body bundle Hold the filter rods. The pipeline-type energy-saving sludge eliminator as described in claim 1 further includes an end cover set and a connecting component, the end cover set is arranged on the dewatering body and adjacent to the first inner ring, the end cover The set includes a sewage discharge pipe, and a cover pivotally arranged on the sewage discharge pipe, the sewage discharge pipe defines a sewage discharge hole communicating with the first inner hole of the first inner ring, the cover is used to cover the sewage discharge hole, the connection The component is arranged on the dewatering body and adjacent to the second inner ring. The connecting component includes a connecting pipe and a flange arranged on the connecting pipe. The connecting pipe defines a second inner ring with the second inner ring. A connecting hole in which the inner hole is connected, and the flange has a digital lock connection hole. The pipeline type energy-saving sludge eliminator according to claim 6, wherein, the end cover group also includes several counterweights, the sewage pipe has an oblique outlet end, and the counterweights are detachably arranged on the On the outer side of the cover, the counterweights are used to hold the cover against the inclined outlet end. The pipeline type energy-saving sludge water eliminator as described in claim item 6 also includes a return water outer set, and the return water outer set includes an outer pipe connected to the sewage discharge pipe of the end cover group and the connecting pipe of the connection assembly shell, and an outlet pipe arranged on the outer casing, the outer casing covers the dewatering body, and defines a drainage space, the dewatering body is located in the drainage space, and the outlet pipe defines a A water outlet hole connected to a drainage space. The pipeline-type energy-saving sludge eliminator according to claim 1 further includes two connecting components, one of which is arranged on the dewatering body and adjacent to the first inner ring, and the other connecting component is arranged on the dewatering body The main body is adjacent to the second inner ring, each connecting component includes a connecting pipe, and a flange disposed on the connecting pipe, the connecting pipe defines a communication hole, the flange has a digital locking hole, the The communication hole of the connecting tube of one of the connecting components communicates with the first inner hole of the first inner ring, and the communicating hole of the connecting tube of the other connecting component communicates with the second inner hole of the second inner ring. The pipeline-type energy-saving sludge water eliminator as described in claim item 9 also includes a backwater outer set, which includes an outer shell connected to the connecting pipes of the connecting components, and an outer casing arranged on the The water outlet pipe of the outer casing, the outer casing wraps the water removal body and defines a drainage space, the water removal body is located in the drainage space, and the water outlet pipe defines a water outlet hole communicating with the drainage space.

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