CN216023313U - Spiral conveying mechanism with sand-water separation function - Google Patents

Abstract

The utility model provides a spiral conveying mechanism with sand-water separation, which comprises a spiral conveyor and a sand-water separator, wherein the sand-water separator is arranged above the spiral conveyor and comprises a separation box, a first feed inlet, a first water outlet and a first discharge outlet are arranged on the separation box, the first feed inlet and the first water outlet are respectively arranged at two ends of the rear side wall of the separation box, and the first discharge outlet is positioned on the front side wall of the separation box and is positioned at the same side as the first water outlet; screw conveyer includes the separating tank, rotation axis and helical blade, and helical blade sets up on the rotation axis, and is provided with the clearance between helical blade and the rotation axis, the rotatable setting of rotation axis is in the inside of separating tank, and the upper end opening of separating tank sets up, and first discharge gate is located the top of separating tank, is provided with the second discharge gate on the diapire of the discharge end of separating tank, is provided with the second apopore on the lateral wall of the other end of separating tank, and the combination separation mode effect is better.

Description

Spiral conveying mechanism with sand-water separation function

Technical Field

The utility model relates to the technical field of sand and stone separation equipment, in particular to a spiral conveying mechanism with sand-water separation function.

Background

The spiral conveyer is a machine for separating water from sand grains, has high separation efficiency, has the characteristics of light weight, compact structure, reliable operation, convenient installation and the like, and is ideal sand-water separation equipment.

If water content is more in the sand water mixture, not only seriously influence the efficiency of transport, simultaneously also because water content is more in the sand water mixture, bring great resistance to the rotation of spiral separating mechanism's blade, great reduction spiral separating mechanism's transport efficiency, also can seriously influence spiral separating mechanism's life simultaneously, it is corresponding, because the resistance that the rotation of spiral separating mechanism's blade meets with is bigger, must need more powerful power equipment to drive the blade rotation, and then will cause the waste of more energy, also can produce bigger noise when more powerful power equipment operates simultaneously.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, according to the spiral conveying mechanism with the sand-water separation function, the sand-water separator is arranged above the spiral conveyor, before the sand-water separation operation is carried out by using the spiral conveyor, the sand-water separator is used for carrying out primary sand-water separation operation on a sand-water mixture, and then the spiral conveyor is used for carrying out secondary sand-water separation operation.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a spiral conveying mechanism with sand-water separation comprises a spiral conveyor and a sand-water separator, wherein the sand-water separator is arranged above the spiral conveyor,

the sand-water separator comprises a separation box, wherein a first feed inlet, a first water outlet and a first discharge outlet are formed in the separation box, the first feed inlet and the first water outlet are respectively formed in two ends of the rear side wall of the separation box, and the first discharge outlet is located on the front side wall of the separation box and is located on the same side as the first water outlet;

the screw conveyer includes separating tank, rotation axis and helical blade, helical blade sets up on the rotation axis, just helical blade with be provided with the clearance between the rotation axis, the rotatable setting of rotation axis is in the inside of separating tank, the upper end opening setting of separating tank, first discharge gate is located the top of separating tank, be provided with the second discharge gate on the diapire of the discharge end of separating tank, be provided with the second delivery port on the lateral wall of the other end of separating tank.

In one embodiment, a plurality of connecting rods are arranged between the rotating shaft and the helical blades, one end of each connecting rod is connected with the outer side wall of the rotating shaft, and the other end of each connecting rod is connected with the helical blade.

In one embodiment, the device further comprises a separating tank bracket, wherein the separating tank is obliquely arranged on the separating tank bracket, and the height of the discharging end of the separating tank is greater than that of the other end of the separating tank.

In one embodiment, the second discharge hole is disposed near an end surface of the discharge end of the separation tank, the second water outlet is located on an end surface of one end of the separation tank, which is far away from the discharge hole, and the second water outlet is located above the rotating shaft.

In one embodiment, rotating shaft bearings are respectively arranged on the side walls at two ends of the separation tank, two ends of the rotating shaft are respectively inserted into the rotating shaft bearings at two ends of the separation tank, one end of the rotating shaft, which is close to the second discharge port, penetrates through the end surface of the separation tank, a first belt pulley is arranged at one end of the rotating shaft, which is positioned outside the separation tank, a rotating shaft motor is arranged on the end surface of the separation tank, a second belt pulley is arranged on a main shaft of the rotating shaft motor, and the first belt pulley and the second belt pulley are in transmission connection through a belt.

In one embodiment, the water storage barrel is positioned below the second water outlet.

In one embodiment, the separator is arranged inside the separation box to separate the separation box into a right box body and a left box body, the first feed inlet is located on the rear side wall of the left box body, the first water outlet is located on the rear side wall of the right box body, the first discharge outlet is located on the front side wall of the right box body, and one end, away from the first feed inlet, of the separator is provided with a notch.

In one embodiment, the bottom surface of the notch is flush with the bottom plate of the left box body, the rear end of the bottom plate of the left box body is low, the front end of the bottom plate of the left box body is high, and the rear end of the bottom plate of the right box body is high, and the front end of the bottom plate of the right box body is low.

In one embodiment, the first feeding hole and the first discharging hole are respectively arranged close to the bottom plates of the left box body and the right box body, and the first water outlet is arranged close to the top plate of the right box body.

In one embodiment, the separator further comprises a discharge pipe, one end of the discharge pipe is communicated with the first discharge port, a discharge box is arranged at the other end of the discharge pipe in a communication manner, a plurality of discharge holes are arranged on the bottom wall of the discharge box, and the discharge holes are positioned above the separation groove.

Compared with the prior art, the spiral conveying mechanism with sand-water separation provided by the utility model comprises a spiral conveyor and a sand-water separator, wherein the sand-water separator is arranged above the spiral conveyor, before the sand-water separation operation is carried out by using the spiral conveyor, the primary sand-water separation operation is carried out on a sand-water mixture by using the sand-water separator, then the secondary sand-water separation operation is carried out by using the spiral conveyor, and meanwhile, a gap is arranged between a spiral blade and a rotating shaft of the spiral conveyor, so that the water content in the sand-water mixture is obviously reduced before the sand-water separation is carried out by using the spiral conveyor, and when the sand-water separation operation is carried out by using the rotating shaft and the spiral blade, the resistance of the spiral blade from the water in the sand-water mixture is obviously reduced, thereby effectively improving the operation efficiency of the spiral conveyor, meanwhile, the energy required for driving the helical blade is saved, and the service lives of the helical blade and the whole helical conveyor are prolonged;

secondly, because a gap is formed between the spiral blade of the spiral conveyor and the rotating shaft, moisture mixed in the sand-water mixture can automatically flow backwards from the gap between the spiral blade and the rotating shaft, and then is gathered at the rear end of the separation tank and flows into the water storage barrel through the water outlet, so that the moisture in the sand-water mixture is prevented from polluting the environment, and the moisture in the sand-water mixture is also favorably recycled;

finally, when the rotating shaft and the spiral blade are used for sand-water separation, the spiral blade can extrude the sand-water mixture, so that the water in the sand-water mixture is further separated, and the water content in the finally separated sand is further reduced.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and the like are used in the indicated orientations and positional relationships based on the orientation shown in the drawings for convenience in describing the utility model and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

As shown in FIG. 1, for convenience of description, the "up", "down", "left", "right", "front" and "back" orientation references in the present invention are based on the orientation shown in FIG. 1;

a spiral conveying mechanism with sand-water separation comprises a spiral conveyor and a sand-water separator, wherein the sand-water separator is arranged above the spiral conveyor,

the sand-water separator comprises a separation box 33, a first feed inlet 36, a first water outlet 32 and a first discharge outlet 31 are arranged on the separation box 33, the first feed inlet 36 and the first water outlet 32 are respectively arranged at two ends of the rear side wall of the separation box 33, and the first discharge outlet 31 is positioned on the front side wall of the separation box 33 and is positioned on the same side as the first water outlet 32;

the spiral conveyor comprises a separation tank 72, a rotating shaft 73 and spiral blades 74, wherein the spiral blades 74 are arranged on the rotating shaft 73, a gap is formed between the spiral blades 74 and the rotating shaft 73, the rotating shaft 73 is rotatably arranged in the separation tank 72, an opening is formed in the upper end of the separation tank 72, the first discharge hole 31 is positioned above the separation tank 72, a discharge hole is formed in the bottom wall of the discharge end of the separation tank 72, and a water outlet hole is formed in the side wall of the other end of the separation tank 72;

preferably, the separator 34 is further included, the separator 34 is disposed inside the separator 33 to separate the separator 33 into a right tank 331 and a left tank 332, the first inlet 36 is located on a rear sidewall of the left tank 332, the first outlet 32 is located on a rear sidewall of the right tank 331, the first outlet 31 is located on a front sidewall of the right tank 331, a notch 341 is disposed on an end of the separator 34 away from the first inlet 36, and a bottom surface of the notch 341 is flush with a bottom plate of the left tank 332.

According to the technical scheme, the sand-water mixture is pumped into the left box body 332 of the separation box 33 through the first feeding hole 36 by the pump, under the pumping pressure of the pump, the sand-water mixture can be sprayed on the front side wall of the separation box 33, in the process, because the density of the fine sand is greater than that of the water, part of the fine sand can firstly fall onto the bottom plate of the left box body 332 under the action of gravity in the spraying process, most of the moisture can be sprayed on the inner wall of the front side wall of the left box body 332, under the blocking of the front side wall of the left box body 332, the moisture can rebound to the rear side wall of the right box body 331 after passing through the gap 341 at the front end of the partition plate 34, so that the moisture flows out of the separation box 33 through the first water outlet 32 on the rear side wall of the right box body 331, the fine sand is different from the distance that the moisture can be sprayed, but most of the fine sand is deposited on the bottom plate of the left box body 332, after a period of time accumulation, the fine sand will cross the gap 341 at the front end of the partition 34, and the first discharge port 31 is arranged on the front side wall of the right box 331 near the bottom plate, so the fine sand will leave the separation box 33 through the first discharge port 31 on the front side wall of the right box 331 along the way, the primary separation operation of the fine sand and water is realized, the sand-water mixture after the primary separation operation falls into the separation tank 72 through the first discharge port 31, and then the screw conveyor is used for performing the secondary sand-water separation operation, therefore, before the sand-water separation is performed by the screw conveyor, the water content in the sand-water mixture is obviously reduced through the separation operation of the sand-water separator, and then when the rotation shaft 73 and the screw blade 74 are used for performing the sand-water separation operation, the resistance of the screw blade 74 from the water in the sand-water mixture is obviously reduced, therefore, the working efficiency of the screw conveyor is effectively improved, the energy required for driving the screw blade 74 is saved, and the service lives of the screw blade 74 and the whole screw conveyor are prolonged; meanwhile, because the gap is arranged between the spiral blade 74 and the rotating shaft 73, when the rotating shaft 73 and the spiral blade 74 are used for sand-water separation operation, moisture mixed in the sand-water mixture automatically flows backwards from the gap between the spiral blade 74 and the rotating shaft 73, and then is gathered at the rear end of the separation tank 72 and flows into the water storage barrel through the water outlet, so that the moisture in the sand-water mixture is prevented from polluting the environment, and the moisture in the sand-water mixture is also favorably recycled; on the other hand, when the sand-water separation operation is performed by using the rotary shaft 73 and the spiral blade 74, the spiral blade 74 presses the sand-water mixture, so that the water in the sand-water mixture is further separated, and the water content in the finally separated sand is further reduced.

Specifically, a plurality of connecting rods 75 are disposed between the rotating shaft 73 and the helical blades 74, one end of each connecting rod 75 is connected to the outer side wall of the rotating shaft 73, the other end of each connecting rod 75 is connected to the helical blades 74, and the connecting rods 75 are disposed to realize the design that a gap exists between the rotating shaft 73 and the helical blades 74.

In this embodiment, a separating trough bracket 71 is further included, the separating trough 72 is obliquely arranged on the separating trough bracket 71, and the height of the discharge end of the separating trough 72 is greater than that of the other end thereof, so that when the rotating shaft 73 and the helical blade 74 are used for sand-water separation, moisture mixed in the sand-water mixture automatically flows backwards from the gap between the helical blade 74 and the rotating shaft 73, and the moisture content in the fine sand discharged from the discharge port is reduced as much as possible.

Further, the water outlet on the separation tank 72 is located on the end face of the end, far away from the material outlet, of the separation tank 72, because the separation tank 72 is obliquely arranged, and the height of one end of the water outlet is lower than that of one end of the material outlet, in order to better discharge the water separated in the sand-water separation operation out of the separation tank 72, the water outlet is designed to be located on the end face of the end, far away from the material outlet, of the separation tank 72.

Further, the discharge port of the separation tank 72 is disposed close to the end face of the discharge end of the separation tank 72, so that the sand-gravel mixture pushed by the spiral blade 74 will undergo the separation process for the longest distance, because the spiral blade 74 will press the sand-water mixture when the rotation shaft 73 and the spiral blade 74 are used for sand-water separation, the longer this distance is, the lower the water content in the fine sand finally separated, and therefore the discharge port of the separation tank 72 is designed to be disposed close to the end face of the discharge end of the separation tank 72;

on the other hand, the water outlet of the separating tank 72 is located above the rotating shaft 73, because in order to prevent the fine sand in the separating tank 72 from flowing out of the separating tank 72 through the water outlet as much as possible, the position of the water outlet is designed to be as high as possible, so that the fine sand is discharged out of the separating tank 72 only when the water level in the separating tank 72 reaches the height of the water outlet, and because the density of the fine sand is greater than that of the water, most of the fine sand is precipitated at the bottom of the separating tank 72 when the water level reaches the position of the water outlet, so that the fine sand can be well prevented from being discharged out of the separating tank through the water outlet.

In this embodiment, in order to realize the rotation operation of the rotating shaft 73 relative to the separating tank 72, it is designed that rotating shaft bearings are respectively arranged in the side walls at the two ends of the separating tank 72, the two ends of the rotating shaft 73 are respectively inserted into the rotating shaft bearings at the two ends of the separating tank 72, one end of the rotating shaft 73 close to the discharge port on the separating tank 72 penetrates through the end surface of the separating tank 72, one end of the rotating shaft 73 located outside the separating tank 72 is provided with a first belt pulley, the end surface of the separating tank 72 is provided with a rotating shaft motor, the main shaft of the rotating shaft motor is provided with a second belt pulley, and the first belt pulley and the second belt pulley are in transmission connection.

In this embodiment, still include the water storage bucket, the water storage bucket is located the below of the delivery port on the separating tank 72 for accomodate the water that separates among the sand-water separation process, prevent that the water that separates is outer at will to arrange the problem of the environmental pollution who causes outward.

Preferably, the bottom plate of the left box 332 is designed to have a lower rear end and a higher front end, so that water which is not rebounded to the first water outlet 32 by the front side wall of the separation box 33 flows toward the first feed port 36, and cannot easily cross the gap 341 and leave the separation box through the first discharge port 31, so as to ensure that the discharge port 36 only separates fine sand, but not water, and simultaneously, the first feed port 36 continuously sprays a sand-water mixture, because the reflowed water is driven by the sand-water mixture newly entering the separation box 33 to move toward the front side wall of the separation box 33, and further, the rebounding force of the water crosses the gap 341 and leaves the separation box through the first water outlet 32; the rear end of the bottom plate of the right box body 331 is designed to be high, the front end of the bottom plate of the right box body 331 is designed to be low, because the water discharged from the first water outlet 32 is the water rebounded from the front side wall of the separation box 33, and the part of the water is generally higher in sputtering rate, most of the fine sand accumulated on the bottom plate of the right box body 331 crosses the notch 341, and meanwhile, because the rear end of the bottom plate of the right box body 331 is high, the front end of the bottom plate is low, and the notch 341 is close to the first material outlet 31, the fine sand crossing the notch 341 at the front end of the partition plate 34 can well leave the separation box 33 from the first material outlet 31 on the front side wall of the right box body 331, so that the first material outlet 31 can only separate the fine sand, and the first water outlet 32 can only separate the water, thereby effectively ensuring the efficiency of the sand-water separation operation.

Further, the position of the first water outlet 32 is higher than the positions of the first inlet 36 and the first outlet 31; specifically, the first inlet port 36 and the first outlet port 31 are respectively disposed near the bottom plates of the left tank 332 and the right tank 331, the first outlet port 32 is disposed near the top plate of the right tank 331, because the water exiting from the first outlet port 32 is the water rebounded from the front sidewall of the separation tank 33, and the water is generally splashed to a higher degree, because the water is better discharged, the first outlet port 32 is disposed near the top plate of the separation tank 33, and the fine sand is only slowly accumulated and slowly passes through the gap 341 to enter the right tank 331, and the fine sand is distributed on the bottom plate of the right tank 331, so that the separated fine sand is better discharged out of the separation tank 33 as smoothly as possible, the first outlet port 31 is disposed near the bottom plate of the right tank 331, and the first inlet port 36 is disposed near the bottom plate of the left tank 332 to better ensure that the water in the sand-water mixture is rebounded, can have fine space upwards to sputter, just can guarantee that sand and water separate in height, realize that water and sand are respectively by first delivery port 32 and the smooth separator box 33 that leaves of first discharge gate 31.

In one embodiment, the device further comprises a discharge pipe, one end of the discharge pipe 37 is communicated with the first discharge hole 31, the other end of the discharge pipe 37 is communicated with a discharge box 37, a plurality of discharge holes 371 are arranged on the bottom wall of the discharge box 37, and the discharge holes 371 are positioned above the separation tank 72;

known by above-mentioned technical scheme, the fine sand after the separation finally leaves separator box 33 by discharge opening 371 on the fine sand ejection of compact case 37 diapire, because still contain a certain amount of moisture in the fine sand this moment, if take the front end that lies in ejection of compact case 37 and directly leave separator box 33, moisture content and the fine sand of small part then can assault forward and go out, not only be unfavorable for the collection and the transportation of later stage fine sand and moisture content, also can cause certain potential safety hazard simultaneously, through design ejection of compact case 37 and set up the discharge opening 371 that is used for fine sand and moisture content to leave on the diapire of ejection of compact case 37, fine sand and moisture carry out fine cushioning effect after the separation processing, in order to guarantee that the fine sand that comes out by discharge opening 371 can both be fine drops to separator box 72 by the opening of separator box 72 upper end, help developing of follow-up screw conveyer's sand-water separation operation.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A spiral conveying mechanism with sand-water separation is characterized by comprising a spiral conveyor and a sand-water separator, wherein the sand-water separator is arranged above the spiral conveyor,

the sand-water separator comprises a separation box, wherein a first feed inlet, a first water outlet and a first discharge outlet are formed in the separation box, the first feed inlet and the first water outlet are respectively formed in two ends of the rear side wall of the separation box, and the first discharge outlet is located on the front side wall of the separation box and is located on the same side as the first water outlet;

the screw conveyer includes separating tank, rotation axis and helical blade, helical blade sets up on the rotation axis, just helical blade with be provided with the clearance between the rotation axis, the rotatable setting of rotation axis is in the inside of separating tank, the upper end opening setting of separating tank, first discharge gate is located the top of separating tank, be provided with the second discharge gate on the diapire of the discharge end of separating tank, be provided with the second delivery port on the lateral wall of the other end of separating tank.

2. The spiral conveying mechanism with the sand-water separation function according to claim 1, wherein a plurality of connecting rods are arranged between the rotating shaft and the spiral blades, one end of each connecting rod is connected with the outer side wall of the rotating shaft, and the other end of each connecting rod is connected with the spiral blade.

3. The spiral conveying mechanism with the sand-water separation function according to claim 2, further comprising a separation tank support, wherein the separation tank is obliquely arranged on the separation tank support, and the height of the discharge end of the separation tank is larger than that of the other end of the separation tank.

4. The spiral conveying mechanism with the sand-water separation function according to claim 3, wherein the second discharge port is arranged close to the end face of the discharge end of the separation tank, the second water outlet is located on the end face of one end, far away from the discharge port, of the separation tank, and the second water outlet is located above the rotating shaft.

5. The spiral conveying mechanism with the sand-water separation function according to claim 4, wherein rotating shaft bearings are respectively arranged on the side walls of the two ends of the separation tank, the two ends of the rotating shaft are respectively inserted into the rotating shaft bearings arranged on the two ends of the separation tank, one end of the rotating shaft close to the second discharge port penetrates through the end surface of the separation tank, a first belt pulley is arranged at one end of the rotating shaft located outside the separation tank, a rotating shaft motor is arranged on the end surface of the separation tank, a second belt pulley is arranged on a main shaft of the rotating shaft motor, and the first belt pulley and the second belt pulley are in belt transmission connection.

6. The spiral conveying mechanism with the sand-water separation function according to claim 5, further comprising a water storage barrel, wherein the water storage barrel is located below the second water outlet.

7. The screw conveying mechanism with the sand-water separation function is characterized by further comprising a partition plate, the partition plate is arranged inside the separation box and divides the separation box into a right box body and a left box body, the first feeding hole is formed in the rear side wall of the left box body, the first water outlet is formed in the rear side wall of the right box body, the first discharging hole is formed in the front side wall of the right box body, and a notch is formed in one end, far away from the first feeding hole, of the partition plate.

8. The spiral conveying mechanism with the sand-water separation function according to claim 7, wherein the bottom surface of the notch is flush with the bottom plate of the left box body, the rear end of the bottom plate of the left box body is low, the front end of the bottom plate of the left box body is high, and the rear end of the bottom plate of the right box body is high, and the front end of the bottom plate of the right box body is low.

9. The spiral conveying mechanism with the sand-water separation function according to claim 8, wherein the first feed port and the first discharge port are respectively arranged close to bottom plates of the left box body and the right box body, and the first water outlet is arranged close to a top plate of the right box body.

10. The spiral conveying mechanism with the sand-water separation function according to claim 9, further comprising a discharge pipe, wherein one end of the discharge pipe is communicated with the first discharge port, the other end of the discharge pipe is communicated with a discharge box, a plurality of discharge holes are formed in the bottom wall of the discharge box, and the discharge holes are located above the separation tank.

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