CN218597322U - Prevent subsiding well of intaking - Google Patents

Abstract

The utility model discloses a prevent subsiding intake shaft, including the well room and install the grate on the well room, still including reinforced concrete well seat and cast-in-place apron support, reinforced concrete well seat is installed on the top surface of well room and its bottom surface is greater than the top surface of well room, and the grate activity is placed on the top surface of cast-in-place apron support, and the top surface of reinforced concrete well seat has seted up the resettlement groove in the position department directly over corresponding to the well room, and cast-in-place apron support is located the resettlement groove will with through watering the apron support the grate is installed on reinforced concrete well seat, and the grate is located the well room this moment directly over. Through the effect of cast-in-place apron support and reinforced concrete well seat, then reinforced concrete well seat acts on the setting on well chamber and bituminous paving again, can avoid each parts junction not hard up well, can disperse the load simultaneously to finally effectively prevent the grate even whole intake shaft holistic subsiding.

Description

Prevent subsiding well of intaking

Technical Field

The utility model relates to a municipal drainage engineering technical field especially relates to a prevent subsiding well of intaking.

Background

Current town road inlet well is located road curb limit for collect the road surface rainwater. The existing municipal road water inlet well usually comprises a grate and a well chamber, the grate is located right above the well chamber, the grate usually directly acts on an asphalt pavement, asphalt is soft, the area of the surface of the grate connected with the asphalt pavement is small, the surface of the grate connected with the asphalt pavement is stressed due to vehicle-mounted influence, asphalt at the working position of the grate and the asphalt pavement is loosened, the grate and even the whole water inlet well are settled, driving safety is influenced, and the water receiving capacity of the settled water inlet well is also seriously reduced.

SUMMERY OF THE UTILITY MODEL

Not enough more than, the utility model provides a prevent subsiding intake well can solve the whole problem of subsiding easily of current intake well grate or even intake well.

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

a sedimentation-preventing water inlet well comprises a well chamber, a grate arranged on the well chamber, a reinforced concrete well seat and a cast-in-place cover plate support, wherein the reinforced concrete well seat is arranged on the top surface of the well chamber, the bottom surface of the reinforced concrete well seat is larger than the top surface of the well chamber, the grate is movably arranged on the top surface of the cast-in-place cover plate support, a placement groove is formed in the position, corresponding to the position right above the well chamber, of the top surface of the reinforced concrete well seat, the cast-in-place cover plate support is located in the placement groove, the grate is arranged on the reinforced concrete well seat through the cast-in-place cover plate support, and the grate is located right above the well chamber.

Preferably, a grate support is arranged on the top surface of the cast-in-place cover plate support, and the grate is movably arranged on the grate support.

Preferably, the cast-in-place cover plate support is fixedly connected with the grate support.

Preferably, support reinforcing steel bars are arranged in the cast-in-place cover plate support, and the support reinforcing steel bars are fixedly connected with the grate support.

Preferably, a buffer layer is arranged between the reinforced concrete well seat and the top surface of the well chamber.

Preferably, the side edge of the reinforced concrete well seat extends downwards to form an abutting part, and the inner side wall of the abutting part abuts against the outer side wall of the top of the well chamber.

Preferably, a PE isolation layer is provided between the inner sidewall of the abutment and the top outer sidewall of the well chamber.

Preferably, the top surface of the grate is higher than the top surface of the reinforced concrete well seat, an asphalt layer is laid on the top surface of the reinforced concrete well seat, and the asphalt layer is bordered by the side wall of the grate support and/or the cast-in-place cover plate support and is flush with the top surface of the grate.

Preferably, a hanging basket is hung at the bottom of the grate.

Preferably, the well chamber is provided with a connecting pipe on a side wall at a distance from the bottom.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up reinforced concrete well seat, cast-in-place apron support etc, fix the grate on cast-in-place apron support, cast-in-place apron support is located the top surface settling tank of reinforced concrete well seat, reinforced concrete well seat is installed on the top surface of well room and its bottom surface is greater than the top surface of well room, then can disperse the load through increasing cast-in-place apron support and reinforced concrete well seat, concentrate the load atress through reinforced concrete well seat dispersion, reduce the load direct action in brick well room, thereby avoid brick well room to take place to damage because of the atress and arouse to subside.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is a schematic structural view (sectional view) of the present invention;

fig. 2 is a schematic structural diagram (sectional view) of the cast-in-place cover plate support, the grate and the hanging basket of the utility model.

Wherein the labels shown in the figures are: 10-a well chamber; 11-gravel stone bedding; 12-a concrete foundation; 13-a mud settling tank; 20-reinforced concrete well seat; 21-a placement groove; 22-an abutment; 30-grate; 31-a grate support; 33-hanging hooks; 40-a cast-in-situ cover plate support; 41-support steel bars; 50-a buffer layer; 60-PE isolation layer; 70-an asphalt layer; 80-hanging basket; 90-connecting pipe; 100-prefabricating the kerbstone.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inside" and the like are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1 and 2, the present invention provides a sedimentation-preventing intake well, which mainly comprises a well chamber 10 and a grate 30 installed on the well chamber 10.

The well chamber 10 adopts a bricked well chamber, the bottom of the well chamber 10 is a sand gravel cushion 11, a concrete foundation 12 is laid on the sand gravel cushion 11, and the bricked well chamber is built on the concrete foundation 12. As an example, C25 concrete is preferably used for the concrete foundation 12.

The grate 30 can be a conventional grate for municipal drainage wells without special requirements. Illustratively, in the preferred embodiment of the present invention, the grate 30 is a ductile cast iron rain grate, a finished ductile cast iron rain grate is used, the load index D400 of the grate is a ductile cast iron QT500-7 material, and the grate is coated with asphalt varnish to prevent corrosion. The application range of the ductile cast iron rainwater grate mainly comprises greenbelts, sidewalks, trolley driving areas and areas of motor vehicle driveways within 0.5m of kerbs, and is a common grate for water inlet wells for municipal engineering. Further, the exemplary grate has a pressure rating of D400 and suitable wellhead dimensions of 600mm by 400mm net opening.

Referring to fig. 1 and 2, the anti-settling intake well of the present invention further comprises a reinforced concrete well base 20 and a cast-in-situ cover plate support 40.

The reinforced concrete well base 20 is installed on the top surface of the well chamber 10 and the bottom surface thereof is larger than the top surface of the well chamber 10. The reinforced concrete well base 20 is preferably a prefabricated reinforced concrete well base, and the pattern of the prefabricated reinforced concrete well base should match the well chamber 10, so that the reinforced concrete well base 20 can be installed on the top surface of the well chamber 10 and the bottom surface of the prefabricated reinforced concrete well base is larger than the top surface of the well chamber 10, and in the preferred embodiment, the inner wall of the reinforced concrete well base 20 is aligned with the inner wall of the well chamber 10 to avoid shielding the inside of the well chamber 10. The reinforced concrete well base 20 is preferably prefabricated by using a prefabricated reinforced concrete well base, that is, the reinforced concrete well base is prefabricated by reinforced concrete, and in the implementation, the reinforced concrete well base 20 can be prefabricated firstly, and then the reinforced concrete well base 20 is transferred to the installation position, so that temporary preparation is not needed, and the installation process and time are saved. Illustratively, in the reinforced concrete structure of the reinforced concrete well base 20, the steel bars adopt HPB300 or HRB400, the overlapping length of the steel bars is 42d, the concrete net protective layer is 30mm, and the concrete adopts C35 concrete.

The reinforced concrete well seat 20 is installed on the top surface of the well chamber 10, and the bottom surface of the reinforced concrete well seat is larger than the top surface of the well chamber 10, so that the acting connection surface with the well chamber 10 is the largest, and the reinforced concrete well seat can extend out of the outer side surface of the well chamber 10 to act with an asphalt pavement, so that the acting surface with the well chamber 10 is enlarged, and simultaneously, the reinforced concrete well seat can act with the asphalt pavement to bear and disperse load.

The grate 30 is movably arranged on the top surface of the cast-in-situ cover plate support 40, namely the grate 30 can be taken down from the top surface of the cast-in-situ cover plate support 40, so that the cleaning, the maintenance and the like of the water inlet well are facilitated. The cast-in-place cover plate support 40 is made of reinforced concrete, and the strength of the cast-in-place cover plate support is higher than that of asphalt, so that the load bearing capacity of the grate 30 is far better than the mode that the grate 30 is directly connected with an asphalt pavement. And at the same time, the cast-in-place cover plate support 40 has a size, illustratively a sidewall thickness of 70mm and a height of 100mm, which is larger than the size of the grate 30, and thus, its contact area with the lower receiving member is also larger than when the grate 30 is directly in contact with the lower receiving member, thereby being more advantageous in bearing and dispersing loads. The cast-in-place cover plate support 40 is preferably in the form of cast-in-place reinforced concrete, illustratively, cast directly onto the well to form the cast-in-place cover plate support 40, and then the grate 30 is placed on the cast-in-place cover plate support 40. The cast-in-place decking support 40 has an inner wall that is aligned with the inner wall of the well chamber 10 or projects slightly inwardly from the inner wall of the well chamber 10 to avoid obstruction of the well chamber 10. In the reinforced concrete structure of the cast-in-place cover plate support 40, the reinforcing steel bars adopt HPB300 or HRB400, the lap joint length of the reinforcing steel bars is 42d, the concrete net protective layer is 30mm, and the concrete adopts C35 concrete.

The top surface of the reinforced concrete well base 20 is provided with a placing groove 21 at a position corresponding to the right upper part of the well chamber 10, the cast-in-situ cover plate support 40 is positioned in the placing groove 21 so as to install the grate 30 on the reinforced concrete well base 20 through the cast-in-situ cover plate support 40, and the grate 30 is positioned right above the well chamber 10. The cast-in-situ cover plate support 40 is positioned on the placing groove 21, the cast-in-situ cover plate support 40 is positioned on the top surface of the reinforced concrete well seat 20 at the moment, the vehicle-mounted transmitted by the cast-in-situ cover plate support 40 is transmitted to the reinforced concrete well seat 20, at the moment, the vehicle-mounted acted on the grate 30 is transmitted to the cast-in-situ cover plate support 40 and then transmitted to the reinforced concrete well seat 20, and finally transmitted to the well chamber 10 and the asphalt pavement through the reinforced concrete well seat 20, so that the cast-in-situ cover plate support 40 and the reinforced concrete well seat 20 play a role in bearing and dispersing load.

When the method is implemented, vehicles and the like pass through the grate 30, the vehicles are carried and transmitted to the grate 30, concentrated loads are transmitted to the cast-in-place cover plate support 40 through the grate 30 at first and then transmitted to the reinforced concrete well seat 20 through the cast-in-place cover plate support 40, and when the concentrated loads are transmitted to the cast-in-place cover plate support 40 and the reinforced concrete well seat 20, the loads can be dispersed, namely, the loads are dispersed by adding the cast-in-place cover plate support 40 and the reinforced concrete well seat 20, and the concentrated load stress in contact with an asphalt pavement is reduced through the reinforced concrete well seat 20, so that the loads can be dispersed, the asphalt around a well is not easy to loosen, and the anti-settling effect is achieved; meanwhile, the load is dispersed by adding the cast-in-situ cover plate support 40 and the reinforced concrete well seat 20, the stress of the concentrated load is dispersed by the reinforced concrete well seat 20, the load is reduced to be directly acted on the bricked well chamber 10, and the well chamber 10 is prevented from being damaged due to stress to cause settlement. The grate 30 is arranged on the cast-in-situ cover plate support 40, the cast-in-situ cover plate support 40 acts with the reinforced concrete well base 20, and then the reinforced concrete well base 20 acts on the well chamber 10 and the asphalt pavement, so that the looseness of joints of all parts can be well avoided, loads can be dispersed, and the grate and even the whole water inlet well can be effectively prevented from overall settlement.

In the preferred embodiment, a grate support 31 is arranged on the top surface of the cast-in-place cover plate support 40, and the grate 30 is movably mounted on the grate support 31. The grate support 31 has a groove conforming to the outer peripheral shape of the grate 30, and the grate 30 is seated in the groove. The grate support 31 is made of cast iron. Further, the cast-in-place cover plate support 40 is fixedly connected with the grate support 31. Therefore, the connection between the grate support 31 and the cast-in-place cover plate support 40 can be effectively kept to prevent looseness, and the looseness is avoided in a fixedly connecting mode, so that the condition that when the grate support 31 bears a vehicle, the contact position between the grate support 31 and the cast-in-place cover plate support 40 is damaged, and the grate 30 sinks per se is avoided.

The cast-in-place cover plate support 40 is internally provided with support steel bars 41, and the support steel bars 41 are fixedly connected with the grate support 31, one mode is cast-in-place on site, and the cast-in-place cover plate support 40 and the support 31 are cast into a whole, illustratively, the cast-in-place cover plate support 40 is of a reinforced concrete structure, the support steel bars 41 are pre-embedded in the cast-in-place cover plate support 40, and the support steel bars 41 are fixedly connected with the support 31, so that when the cast-in-place cover plate support 40 is cast, the cast-in-place cover plate support 40 and the support 31 can be firmly connected. Illustratively, the support steel bars 41 are fixed to the support 31 by welding before casting by using the HPB300 or the HRB400, and then casting of the cast-in-place cover plate support 40 is completed, at which time the support 31 is firmly fixed to the cast-in-place cover plate support 40.

Illustratively, the utility model discloses the anti-settling intake well of preferred embodiment sets up by pavement or greenbelt, is located for the juncture of road and pavement or greenbelt, is provided with prefabricated kerbstone 100 between intake well and pavement or the greenbelt, and prefabricated kerbstone 100 can adopt the curbstone commonly used. In this embodiment, a step is provided at the side of the reinforced concrete well base 20 close to the sidewalk or the green belt, and the prefabricated curbstone 100 is located at the step. The prefabricated kerbstone 100 extends upwards and is higher than the reinforced concrete well base 20, and the side of the prefabricated kerbstone 100 facing the grate 30 can be used as the groove wall of the placing groove 21 of the reinforced concrete well base 20. There is preferably a gap, such as a 10mm gap, between the prefabricated kerbstone 100 and the cast-in-place cover support 40 to accommodate thermal expansion and contraction.

In the preferred embodiment, a cushioning layer 50 is provided between the reinforced concrete well base 20 and the top surface of the well 10. The buffer layer 50 is a flexible material with certain elasticity, and has a buffer function. The buffer layer 50 is located between the reinforced concrete well seat 20 and the top surface of the well chamber 10, when the vehicle is transmitted to the well chamber 10 through the reinforced concrete well seat 20, a small part of load can be absorbed through the effect of the buffer layer 50, and the rest part of load is buffered through the buffer layer 50, so that the well chamber 10 can be effectively protected, the well chamber 10 is prevented from being crushed by the vehicle, the well chamber 10 can be protected, and settlement is prevented. The cushioning layer 50 is illustratively a polypropylene cushion layer, 50mm thick, having a certain plasticity, i.e., a certain elasticity, and a flexible filler, which serves as a cushioning effect. Considering that the water inlet well is usually disposed at the edge of the road, near the sidewalk or the green belt, on the side near the sidewalk or the green belt, because the vehicle is not loaded much, the main force is usually applied to the side far from the sidewalk or the green belt. In the present exemplary embodiment, the cushioning layer 50 is only provided between the reinforced concrete well base 20 and the side of the well 10 away from the sidewalk or green belt. Meanwhile, in view of the above, in the present exemplary embodiment, the bottom surface of the reinforced concrete well 20 is larger than the top surface of the well 10, and mainly the bottom surface of the side far away from the sidewalk or the green belt extends outward beyond the top surface of the well 10 and interacts with the asphalt road, while the bottom surface of the reinforced concrete well 20 may be flush with or slightly recessed or extended from the top surface of the well 10 at the side near the sidewalk or the green belt, and at this time, since the load mainly acts on the side far away from the sidewalk or the green belt, the bottom surface of the reinforced concrete well 20 is disposed and made larger than the top surface of the well 10 at the side far away from the sidewalk or the green belt, so that on the one hand, the acting surface with the well 10 can be ensured, and on the other hand, the load can simultaneously interact with the asphalt road surface, thereby achieving the purpose of dispersing the load at the load concentration portion to prevent the settlement.

In the preferred embodiment, an abutment 22 extends downwardly from the side edge of the reinforced concrete well base 20, and the inner side wall of the abutment 22 abuts against the outer side wall of the top of the well chamber 10. The abutting portion 22 is mainly used for acting with an asphalt pavement to increase a contact area so as to play a role of dispersing load; meanwhile, the inner side wall of the abutting part 22 abuts against the outer side wall of the top of the well chamber 10 and also acts on the well chamber 10, so that the contact area is increased, and the effect of dispersing load is achieved. Considering that the load acts mainly on the side remote from the walkway or green belt, the abutment 22 is in the exemplary embodiment provided only on the side remote from the walkway or green belt. Furthermore, a PE isolation layer 60 is arranged between the inner side wall of the abutting portion 22 and the outer side wall of the top of the well chamber 10, the PE isolation layer 60 is made of PE, is located between the inner side wall of the abutting portion 22 and the outer side wall of the top of the well chamber 10, and mainly plays a role in reducing friction, so that when the reinforced concrete well seat 20 sinks slightly after receiving a load, and the inner side wall of the abutting portion 22 and the outer side wall of the top of the well chamber 10 slide mutually, the roles in reducing friction and protecting the outer side wall of the well chamber 10 are played. In an exemplary embodiment, the PE barrier layer 60 is 10mm thick.

In the preferred embodiment, the top surface of the grate 30 is higher than the top surface of the reinforced concrete well base 20, an asphalt layer 70 is laid on the top surface of the reinforced concrete well base 20, and the asphalt layer 70 borders the side wall of the cast-in-place cover plate support 40 and is flush with the top surface of the grate 30. On one hand, in consideration of the aesthetic problem, the cast-in-place cover plate support 40 is of a reinforced concrete structure, the color is greatly different from that of asphalt, the exposed pavement is not attractive, therefore, the reinforced concrete well seat 20 and the cast-in-place cover plate support 40 should not directly expose the asphalt pavement, at the moment, the top surface of the grate 30 is higher than the top surface of the reinforced concrete well seat 20, the top surface of the reinforced concrete well seat 20 is paved with an asphalt layer 70, and the asphalt layer 70 is connected with the side wall of the cast-in-place cover plate support 40 and is flush with the top surface of the grate 30, so that in the implementation, the asphalt of the asphalt layer 70 covers the top surface of the reinforced concrete well seat 20 and the side surfaces of the cast-in-place cover plate support 40 and the grate support 31, at the moment, the asphalt layer 70 is paved while the asphalt pavement is implemented (the asphalt layer 70 can be integrated with the asphalt layer at the roadside, and the thickness is preferably 50 mm), the asphalt layer 70 is flush with the asphalt pavement, so that only the grate 30 and the grate support 31 expose the asphalt pavement to ensure the aesthetic appearance; on the other hand, because the reinforced concrete well base 20 is lower, it is wrapped by the asphalt layer 70 in implementation, and the asphalt layer 70 is integrated with the asphalt pavement, at this time, the asphalt pavement is not only contacted with the bottom surface and the peripheral side surface of the reinforced concrete well base 20, but also contacted with the top surface of the reinforced concrete well base 20 and the side surface of the cast-in-place cover plate support 40, so as to wrap the reinforced concrete well base 20 and the cast-in-place cover plate support 40, to realize larger and more action positions, to be more beneficial to bearing and dispersing load, and to be more beneficial to avoiding or slowing down settlement.

Because the road surface rainwater is mostly initial stage rainwater, it carries large-scale pollutant, like rubbish, leaf etc to and the silt that ground washout brought, when entering into the well room 10 of intake well through the grate 30 of intake well, cause well room 10 to block up easily, cause low reaches rainwater connecting pipe diameter to block up simultaneously, thereby when leading to the torrential rain, the intake well causes the ability of water passing to reduce because of blockking up, and then arouses town road ponding, causes the waterlogging when serious.

In the preferred embodiment, a basket 80 is hung at the bottom of the grate 30, and by arranging the basket 80, part of the pollutants can be temporarily collected in the basket 80, so that the pollutants are prevented from entering the well chamber 10 of the water inlet well to cause the well chamber to be blocked and the pipe diameter of the connecting pipe to be blocked. The basket 80 is removably mounted to the grate 30 for timely maintenance, replacement and cleaning of contaminants within the basket 80. Illustratively, the bottom of the grate 30 is provided with a hook 33 downward, and the hanging basket 80 is hung on the grate 30 through the hook 33.

The well chamber 10 is provided with connecting pipe 90 on the lateral wall apart from bottom certain distance to this forms a mud groove 13 in the bottom of well chamber 10, and the mud groove 13 is sunk to little volume pollutants such as silt that gets into mud groove 13 of well chamber 10 bottom, and rainwater behind the mud that sinks gets into connecting pipe 90 again, thereby connecting pipe 90 is difficult for blockking up, increases the water capacity of intaking well.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An anti-sedimentation water inlet well comprises a well chamber (10) and a grate (30) arranged on the well chamber (10), and is characterized in that: the cast-in-place cover plate grate comprises a reinforced concrete well seat (20) and a cast-in-place cover plate support (40), wherein the reinforced concrete well seat (20) is installed on the top surface of the well chamber (10), the bottom surface of the reinforced concrete well seat is larger than the top surface of the well chamber (10), the grate (30) is movably placed on the top surface of the cast-in-place cover plate support (40), a placement groove (21) is formed in the position, corresponding to the position right above the well chamber (10), of the top surface of the reinforced concrete well seat (20), the cast-in-place cover plate support (40) is located in the placement groove (21) so that the grate (30) is installed on the reinforced concrete well seat (20) through the cast-in-place cover plate support (40), and the grate (30) is located right above the well chamber (10).

2. The anti-settling feedwell of claim 1, wherein: the top surface of the cast-in-situ cover plate support (40) is provided with a grate support (31), and the grate (30) is movably arranged on the grate support (31).

3. The anti-settling intake well of claim 2, wherein: the cast-in-situ cover plate support (40) is fixedly connected with the grate support (31).

4. The anti-settling feedwell of claim 3, wherein: and support reinforcing steel bars (41) are arranged in the cast-in-situ cover plate support (40), and the support reinforcing steel bars (41) are fixedly connected with the grate support (31).

5. The anti-settling feedwell of claim 1, wherein: and a buffer layer (50) is arranged between the reinforced concrete well seat (20) and the top surface of the well chamber (10).

6. The anti-settling intake well of claim 1, wherein: and an abutting part (22) extends downwards from the side edge of the reinforced concrete well seat (20), and the inner side wall of the abutting part (22) is abutted against the outer side wall of the top of the well chamber (10).

7. The anti-settling feedwell of claim 6, wherein: and a PE isolation layer (60) is arranged between the inner side wall of the abutting part (22) and the outer side wall of the top of the well chamber (10).

8. The anti-settling feedwell of claim 2, wherein: the top surface of the grate (30) is higher than the top surface of the reinforced concrete well seat (20), an asphalt layer (70) is laid on the top surface of the reinforced concrete well seat (20), and the asphalt layer (70) is bordered by the grate support (31) and/or the side wall of the cast-in-place cover plate support (40) and is flush with the top surface of the grate (30).

9. The anti-settling intake well of claim 1, wherein: a hanging basket (80) is hung at the bottom of the grate (30).

10. The anti-settling feedwell of claim 1, wherein: the well chamber (10) is provided with a connecting pipe (90) on the side wall at a certain distance from the bottom.

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