CN212561679U - A silt cleaning device for water environment is administered - Google Patents

A silt cleaning device for water environment is administered Download PDF

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Publication number
CN212561679U
CN212561679U CN202021072043.8U CN202021072043U CN212561679U CN 212561679 U CN212561679 U CN 212561679U CN 202021072043 U CN202021072043 U CN 202021072043U CN 212561679 U CN212561679 U CN 212561679U
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Prior art keywords
sludge
collecting
silt
plate
stirring
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CN202021072043.8U
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邱君景
徐坤
陈霖瑶
胡信
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Shanghai Water Engineering Design and Research Institute Co Ltd
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Shanghai Water Engineering Design and Research Institute Co Ltd
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Abstract

The utility model discloses a silt cleaning device for water environment is administered, include: a sludge cleaning vehicle; the sludge storage tank is arranged on the sludge cleaning vehicle; the suspender crane is arranged on the sludge cleaning vehicle; the upper end of the vertical rod is connected with a lifting rope of the suspender crane; the floating body is sleeved on the vertical rod in a sliding manner; the mounting plate is fixedly connected to the lower end of the vertical rod; each sludge cleaning mechanism is arranged on the lower plate surface of the mounting plate; the sludge pump is arranged on the upper plate surface of the mounting plate, a sludge inlet of the sludge pump is connected with a sludge collecting outlet of the sludge cleaning mechanism, and a sludge outlet of the sludge pump is respectively connected with a sludge collecting port of the sludge storage tank; and the controller is respectively connected with the suspender crane, the sludge cleaning mechanism and the sludge pump. The utility model discloses effectively prevent that bulk silt from blockking up row's silt pipeline, reach the purpose of arranging the silt fast.

Description

A silt cleaning device for water environment is administered
Technical Field
The utility model relates to a water environment treatment equipment technical field especially relates to a silt cleaning device for water environment is administered.
Background
The hydraulic engineering is an engineering which is built by using a control box to allocate surface water and underground water in the nature to achieve the purposes of removing harm and benefiting benefit, and also becomes a water engineering. Water is a valuable resource essential for human production and life, but its naturally occurring state does not completely meet the needs of human beings. Only when hydraulic engineering is built, water flow can be controlled, flood disasters are prevented, and water quantity is adjusted and distributed to meet the requirements of people on water resources in life and production. Hydraulic engineering requires the construction of various types of hydraulic structures such as dams, dikes, spillways, water gates, water inlets, channels, aqueducts, trestles, fishways and the like to achieve the goals.
Need use silt cleaning device in the aspect of hydraulic engineering, but current silt cleaning device function singleness has following defect:
1. the existing sludge cleaning device has a single structure, lacks an effective treatment means for the high-density bulk sludge, is easy to cause serious blockage of a sludge discharge pipeline and influences the stable operation of sludge discharge work;
2. the operation convenience of the existing sludge cleaning device is poor, rapid transfer cannot be realized after one regional sludge discharge task is completed, and the sludge discharge efficiency is low.
The applicant has therefore made an advantageous search and attempt to solve the above-mentioned problems, in the context of which the technical solutions to be described below have been created.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: the silt cleaning device for water environment improvement is provided with the problems that the existing silt cleaning device is easy to cause serious blockage of a silt discharging pipeline, influences stable operation of silt discharging work, is poor in operation convenience and cannot realize quick transfer, and the silt cleaning device for water environment improvement is good in operation convenience, can realize quick transfer and is high in silt discharging efficiency, and can prevent blockage of the silt discharging pipeline and guarantee stable operation of the silt discharging work.
The utility model discloses the technical problem that will solve can adopt following technical scheme to realize:
a sludge conditioning apparatus for aquatic environment remediation, comprising:
a sludge cleaning vehicle;
a sludge storage tank mounted on the sludge cleaning vehicle;
a boom crane mounted on the sludge cleaning vehicle and located at one side of the sludge storage tank;
the upper end of the vertical rod is connected with a lifting rope of the suspender crane;
the floating body is sleeved on the vertical rod in a sliding manner;
the mounting plate is fixedly connected to the lower end of the vertical rod;
each sludge cleaning mechanism is arranged on the lower plate surface of the mounting plate;
the sludge pumps are in one-to-one correspondence with the sludge cleaning mechanisms, the sludge pumps are arranged on the upper plate surface of the mounting plate, the sludge inlets of the sludge pumps are connected with the sludge collecting outlets of the corresponding sludge cleaning mechanisms, and the sludge outlets of the sludge pumps are respectively connected with the sludge collecting ports of the sludge storage tanks; and
and the controller is respectively connected with the suspender crane, each sludge cleaning mechanism and each sludge pump.
In a preferred embodiment of the present invention, the sludge cleaning mechanism includes:
the supporting plate is fixedly arranged on the lower plate surface of the mounting plate through a supporting connecting rod, and a sludge collecting outlet is formed in the supporting plate;
the upper cylinder surface of the sludge collecting cylinder is fixedly connected to the lower plate surface of the supporting plate, and the inner cavity of the sludge collecting cylinder is communicated with the sludge collecting outlet;
the stirring motor is fixedly arranged on the outer cylinder surface of the sludge collecting cylinder and is connected with the controller;
the stirring component is axially arranged in the sludge collecting cylinder and is connected with an output shaft of the stirring motor; and
a plurality of elastic vibration supporting component, a plurality of elastic vibration supporting component follow collection silt section of thick bamboo circumference interval is fixed to be set up on the lower face of mounting panel and respectively with the controller is connected.
In a preferred embodiment of the present invention, the sludge collection outlet of the support plate is connected to the sludge inlet of the sludge pump through a connecting pipe.
In a preferred embodiment of the present invention, a filter screen is installed in the sludge collecting cylinder below the stirring component.
In a preferred embodiment of the present invention, the stirring assembly includes:
a stirring shaft; the stirring shaft is arranged in the silt collecting cylinder and extends along the radial direction of the silt collecting cylinder, one end of the stirring shaft penetrates through the silt collecting cylinder and then is connected with the output shaft of the stirring motor through a coupler, and
the stirring blades are axially arranged on the stirring shaft at intervals.
In a preferred embodiment of the present invention, the elastic vibration support assembly includes:
the vibration springs are fixedly arranged on the lower plate surface of the supporting plate at intervals in the circumferential direction;
the upper end of the connecting rod piece is fixedly connected with the lower ends of the plurality of vibrating springs;
the vibration assembly is sleeved on the connecting rod piece and is connected with the controller; and
and the supporting seat is fixedly connected to the lower end of the connecting rod piece.
In a preferred embodiment of the present invention, the vibration assembly includes:
the protective sleeve is fixedly sleeved on the connecting rod piece; and
the vibration motor is installed in the protective sleeve and connected with the controller.
In a preferred embodiment of the present invention, the supporting seat is a tapered supporting seat structure, and the horizontal height of the lower end surface of the supporting seat is lower than the horizontal height of the lower cylinder surface of the silt collecting cylinder.
In a preferred embodiment of the present invention, a protective box is disposed on the periphery of the stirring motor.
In a preferred embodiment of the present invention, the floating body includes:
the sliding sleeve is sleeved on the vertical rod in a sliding manner; and
the floating plate is fixed on the outer peripheral surface of the sliding sleeve.
In a preferred embodiment of the present invention, the present invention further comprises a duct assembly, the duct assembly comprising:
the multi-way interface connecting seat is arranged on the sludge cleaning vehicle and is provided with a collecting main outlet and a plurality of branch inlets;
one end of the sludge conveying main pipe is connected with a sludge collecting port of the sludge storage tank, and the other end of the sludge conveying main pipe is connected with a collecting main outlet of the multi-way port connecting seat; and
one end of each sludge conveying branch pipe is connected with the branch inlets of the multi-way connector connecting seat, and the other end of each sludge conveying branch pipe is connected with the sludge outlet of the corresponding sludge pump.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model can stir and break up the high-density bulk sludge at the bottom of the river by arranging the sludge cleaning mechanism, effectively prevent the bulk sludge from blocking the sludge discharge pipeline, achieve the purpose of rapid sludge discharge, and simultaneously cooperate with the floating body to enable the sludge collection cylinder to be rapidly and stably inserted into the sludge, thereby ensuring the stable operation of the sludge discharge work;
2. the utility model discloses a silt cleaning cart and jib hoist's combination configuration, behind the desilting task in accomplishing this region, can realize the quick transfer of silt cleaning mechanism, it is more convenient to operate, has greatly improved row's silt efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the vertical rod, the floating body, the mounting plate and the sludge cleaning mechanism of the present invention.
Fig. 3 is a schematic structural diagram of the sludge cleaning mechanism of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 1 to 3, a sludge cleaning device for water environmental treatment is shown, which is characterized by comprising a sludge cleaning vehicle 1, a sludge storage tank 2, a boom crane 3, a vertical rod 4, a floating body 5, a mounting plate 6, a plurality of sludge cleaning mechanisms 7, a plurality of sludge pumps 8 and a controller (not shown in the figure).
The sludge storage tank 2 is arranged on the sludge cleaning vehicle 1, and the upper part of the sludge storage tank 2 is provided with a sludge collecting port 21. The boom hoist 3 is installed on the sludge cleaning vehicle 1 at one side of the sludge storage tank 2, and the boom hoist 3 has a hoist rope 31 for hoisting. The upper end of the vertical rod 4 is connected to a lifting rope 31 of the boom crane 3. The floating body 5 is sleeved on the vertical rod 4 in a sliding way. The mounting plate 6 is fixedly connected to the lower end of the vertical rod 4. A plurality of sludge cleaning mechanisms 7 are arranged on the lower plate surface of the mounting plate 6 at intervals. The sludge pumps 8 and the sludge cleaning mechanisms 7 are in one-to-one correspondence, the sludge pumps 8 are installed on the upper plate surface of the installation plate 6, the sludge inlets of the sludge pumps are connected with the sludge collecting outlets 712 of the corresponding sludge cleaning mechanisms 7, and the sludge outlets of the sludge pumps are respectively connected with the sludge collecting ports 21 of the sludge storage tank 2. The controller is installed on silt cleaning cart 1, and the controller is connected with jib crane 3, each silt clearance mechanism 7 and each sludge pump 8 respectively for control lever crane 3, each silt clearance mechanism 7 and each sludge pump 8 carry out collaborative work.
The floating body 5 comprises a sliding sleeve 51 and a floating plate 52, wherein the sliding sleeve 51 is slidably sleeved on the vertical rod 4, and the floating plate 52 is fixed on the outer peripheral surface of the sliding sleeve 51. Through sliding sleeve 51 and montant 4 sliding fit for floating plate 52 floats in the surface of water all the time, and the setting of body 5 can avoid montant 4 and silt cleaning mechanism 7 to take place the slope, can make silt cleaning mechanism 7 steady operation, and the row's silt is more reliable.
The sludge cleaning mechanism 7 comprises a supporting plate 71, a sludge collecting barrel 72, a stirring motor 73, a stirring assembly 74 and a plurality of elastic vibration supporting assemblies 75.
The supporting plate 71 is fixedly arranged on the lower plate surface of the mounting plate 6 through a supporting connecting rod 711, a sludge collecting outlet 712 is formed in the supporting plate 71, the sludge collecting outlet 712 is connected with one end of the connecting pipe 76 through a flange, and the other end of the connecting pipe 76 penetrates through the mounting plate 6 and then is connected with a sludge inlet of the sludge pump 8.
The upper surface of the sludge collecting barrel 72 is fixedly connected to the lower surface of the support plate 71 and the inner cavity thereof is communicated with the sludge collecting outlet 712. A filter screen 77 is installed in the sludge collection cylinder 72 below the stirring member 74. The setting of filter screen 77 can be sieved and filtered large-scale solid debris, avoids large-scale solid debris to block up the pipeline.
The stirring motor 73 is fixedly installed on the outer cylindrical surface of the sludge collecting barrel 72 and is connected with the controller. Be equipped with guard box 731 in agitator motor 73's periphery, guard box 731's setting can provide the protection for agitator motor 73, guarantees agitator motor 73's normal operating.
The stirring component 74 is axially arranged in the sludge collecting barrel 72 and is connected with an output shaft of a stirring motor 73. Specifically, the stirring assembly 74 includes a stirring shaft 741 and a plurality of stirring blades 742, the stirring shaft 741 is axially disposed in the silt collecting barrel 72 and extends along the radial direction of the silt collecting barrel 72, one end of the stirring shaft passes through the silt collecting barrel 72 and then is connected with the output shaft of the stirring motor 73 through a coupling 743, and the plurality of stirring blades 742 are axially installed on the stirring shaft 741 at intervals.
A plurality of elastic vibration supporting components 75 are fixedly arranged on the lower plate surface of the mounting plate 6 at intervals along the circumferential direction of the silt collecting barrel 72 and are respectively connected with the controller. Specifically, the elastic vibration support assembly 75 includes a plurality of vibration springs 751, a connection rod 752, a vibration assembly 753, and a support base 754. A plurality of vibration springs 751 are fixedly mounted on the lower plate surface of the support plate 71 at intervals in the circumferential direction, and the vibration springs 751 are preferably rubber springs. The upper end of the connection rod 752 is fixedly connected with the lower end of the plurality of vibration springs 751. The vibration component 753 is sleeved on the connecting rod 752 and connected with the controller. Specifically, the vibration component 753 includes a protective sleeve and a vibration motor, the protective sleeve is fixedly sleeved on the connecting rod 752, and the vibration motor is installed in the protective sleeve and connected with the controller. In this embodiment, the setting of vibration subassembly 753 can play the effect of vibration silt, makes silt clearance mechanism 7 sink to the riverbed bottom fast, and the setting of lag can provide the protection for vibrating motor, and vibrating motor adopts the vibrating motor among the prior art. The support base 754 is fixedly connected to the lower end of the connecting rod 752. The support base 754 is a conical support base structure, and the level of the lower end surface of the support base 754 is lower than that of the lower cylindrical surface of the sludge collecting barrel 72. The support base 754 can be used for stable support.
The utility model discloses a silt cleaning device for water environment is administered still includes conveyer pipe assembly 9, and conveyer pipe assembly 9 is including leading to interface connecting seat 91, mud delivery header 92 and a plurality of mud delivery branch 93 more. The multi-way connector connecting seat 91 is installed on the sludge cleaning vehicle 1 and is provided with a collecting main outlet and a plurality of branch inlets. One end of the sludge delivery main pipe 92 is connected with the sludge collection port 21 of the sludge storage tank 2, and the other end thereof is connected with the collection main outlet of the multi-way interface connecting seat 91. One end of each of the sludge delivery branch pipes 93 is correspondingly connected with the branch inlets of the multi-way interface connecting seat 91, and the other end of each of the sludge delivery branch pipes is connected with the sludge outlet of the corresponding sludge pump 8.
The utility model discloses a silt cleaning device for water environment is administered's theory of operation and use flow as follows:
when arranging the silt, start jib crane 3, move silt clearance mechanism 7 through lifting rope 31 and carry to the river course top position of required row silt, then put the rope operation, transfer montant 4, body 5, mounting panel 6 and silt clearance mechanism 7 to the river course surface of water under through lifting rope 31, transfer the in-process, body 5 upwards slides along montant 4 under the effect of buoyancy, body 5 floats on the surface of water all the time, montant 4, mounting panel 6 and silt clearance mechanism 7 continuously transfer to the submerged riverbed bottom.
Starting the vibration component 753, enabling the connecting rod 752 and the supporting seat 754 to vibrate by using a vibration motor in the vibration component 753, and enabling the supporting seat 754 to be rapidly inserted into sludge of a riverbed in the vibration process, wherein the vibration spring 751 can play a role in damping and buffering, the connecting rod 752 and the supporting seat 754 can play a role in scattering nearby high-density bulk sludge when vibrating, enabling the sludge cleaning mechanism 7 to stably sink into the river bottom by matching with the floating body 5, then starting the sludge pump 8 and the stirring motor 73, enabling the sludge collecting barrel 72 to generate suction through the connecting pipe 76, pumping the sludge at the river bottom into the sludge collecting barrel 72, and screening and filtering large solid impurities in the sludge by using the filter screen 77 when the sludge passes through a sludge inlet of the sludge collecting barrel 72 to avoid the pipeline being blocked by the large solid impurities. The output shaft is driven to rotate by the stirring motor 73, so that the stirring component 74 on the output shaft is driven to stir and break up the bulk sludge entering the sludge collecting barrel 72, the sludge is quickly pumped and discharged into the sludge storage tank 2 through the connecting pipe 76, the sludge conveying branch pipes 93 and the sludge conveying main pipe 92, and the stable operation of sludge discharge is ensured.
After the sludge discharge task in the region is completed, the vertical rod 4, the floating body 5, the mounting plate 6 and the sludge cleaning mechanism 7 can be quickly lifted to another region to be cleaned through the suspender crane 3, the operation is convenient, and the high-efficiency sludge discharge is realized.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (11)

1. A silt cleaning apparatus for water environmental remediation, comprising:
a sludge cleaning vehicle (1);
the sludge storage tank (2), the sludge storage tank (2) is arranged on the sludge cleaning vehicle (1);
the boom crane (3) is installed on the sludge cleaning vehicle (1) and is positioned on one side of the sludge storage tank (2);
the upper end of the vertical rod (4) is connected with a lifting rope (31) of the suspender crane (3);
the floating body (5), the said floating body (5) is slipped and fitted over the said montant (4);
the mounting plate (6), the said mounting plate (6) is fixedly connected to the lower end of the said montant (4);
at least one sludge cleaning mechanism (7), wherein each sludge cleaning mechanism (7) is arranged on the lower plate surface of the mounting plate (6);
the sludge pumps (8) are in one-to-one correspondence with the sludge cleaning mechanisms (7), the sludge pumps (8) are installed on the upper plate surface of the installation plate (6), the sludge inlets of the sludge pumps are connected with the sludge collecting outlets (712) of the corresponding sludge cleaning mechanisms (7), and the sludge outlets of the sludge pumps are respectively connected with the sludge collecting ports (21) of the sludge storage tank (2); and
and the controller is respectively connected with the suspender crane (3), each sludge cleaning mechanism (7) and each sludge pump (8).
2. The sludge cleaning apparatus for aquatic environment remediation as claimed in claim 1, wherein the sludge cleaning mechanism (7) comprises:
the supporting plate (71), the supporting plate (71) is fixedly arranged on the lower plate surface of the mounting plate (6) through a supporting connecting rod (711), and a sludge collecting outlet (712) is formed in the supporting plate (71);
the upper cylinder surface of the sludge collecting cylinder (72) is fixedly connected to the lower plate surface of the support plate (71), and the inner cavity of the sludge collecting cylinder (72) is communicated with the sludge collecting outlet (712);
the stirring motor (73), the said stirring motor (73) is fixedly mounted on the external cylinder surface of the said silt collecting cylinder (72) and connected with said controller;
the stirring component (74), the shaft of the stirring component (74) is arranged in the sludge collecting barrel (72) and is connected with the output shaft of the stirring motor (73); and
a plurality of elastic vibration supporting components (75), a plurality of elastic vibration supporting components (75) are along collection silt section of thick bamboo circumference interval fixed setting is in on the lower plate of mounting panel (6) and respectively with the controller is connected.
3. Sludge cleaning apparatus for aquatic environmental remediation according to claim 2, wherein the sludge collection outlet (712) of the support plate (71) is connected to the sludge inlet of the sludge pump (8) via a connection pipe (76).
4. A sludge cleaning apparatus for use in aquatic environment remediation according to claim 2, wherein a filter screen (77) is mounted within the sludge collection vessel (72) below the agitator assembly (74).
5. A sludge conditioning apparatus for aquatic environment remediation according to claim 2, wherein said agitator assembly (74) includes:
a stirring shaft (741); the shaft of the stirring shaft (741) is arranged in the sludge collecting barrel (72) and extends along the radial direction of the sludge collecting barrel (72), one end of the stirring shaft passes through the sludge collecting barrel (72) and then is connected with the output shaft of the stirring motor (73) through a coupling (743), and
a plurality of stirring blades (742), wherein the plurality of stirring blades (742) are axially installed on the stirring shaft (741) at intervals.
6. A sludge conditioning apparatus for aquatic environments according to claim 2, wherein the elastic vibration support member (75) comprises:
a plurality of vibration springs (751), wherein the plurality of vibration springs (751) are fixedly arranged on the lower plate surface of the support plate (71) at intervals in the circumferential direction;
the upper end of the connecting rod piece (752) is fixedly connected with the lower ends of the plurality of vibrating springs (751);
the vibration component (753) is sleeved on the connecting rod piece (752) and is connected with the controller; and
the supporting seat (754) is fixedly connected to the lower end of the connecting rod piece (752).
7. The sludge cleaning apparatus for aquatic environment remediation of claim 6, wherein the vibration assembly (753) includes:
the protective sleeve is fixedly sleeved on the connecting rod piece (752); and
the vibration motor is installed in the protective sleeve and connected with the controller.
8. The sludge cleaning device for the aquatic environment treatment as claimed in claim 6, wherein the supporting seat (754) is a conical supporting seat structure, and the level of the lower end surface of the supporting seat (754) is lower than that of the lower cylindrical surface of the sludge collecting barrel (72).
9. The sludge cleaning apparatus for aquatic environmental remediation as claimed in claim 2, wherein a shielding case (731) is provided on the outer circumference of the stirring motor (73).
10. The sludge cleaning apparatus for aquatic environment improvement according to claim 1, wherein said floating body (5) comprises:
the sliding sleeve (51), the sliding sleeve (51) is sleeved on the vertical rod (4) in a sliding manner; and
the floating plate (52), the floating plate (52) is fixed on the periphery of the sliding sleeve (51).
11. A sludge cleaning apparatus for use in the remediation of an aqueous environment as claimed in any one of claims 1 to 10, further comprising a conveyor pipe assembly (9), the conveyor pipe assembly (9) comprising:
the multi-way interface connecting seat (91) is installed on the sludge cleaning vehicle (1) and is provided with a collecting main outlet and a plurality of branch inlets;
one end of the sludge conveying main pipe (92) is connected with the sludge collecting port (21) of the sludge storage tank (2), and the other end of the sludge conveying main pipe (92) is connected with the collecting main outlet of the multi-way interface connecting seat (91); and
one end of each sludge conveying branch pipe (93) is correspondingly connected with the branch inlets of the multi-way connector connecting seat (91), and the other end of each sludge conveying branch pipe (93) is connected with the sludge outlet of the corresponding sludge pump (8).
CN202021072043.8U 2020-06-11 2020-06-11 A silt cleaning device for water environment is administered Active CN212561679U (en)

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Application Number Priority Date Filing Date Title
CN202021072043.8U CN212561679U (en) 2020-06-11 2020-06-11 A silt cleaning device for water environment is administered

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Application Number Priority Date Filing Date Title
CN202021072043.8U CN212561679U (en) 2020-06-11 2020-06-11 A silt cleaning device for water environment is administered

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CN212561679U true CN212561679U (en) 2021-02-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111749294A (en) * 2020-06-11 2020-10-09 上海市水利工程设计研究院有限公司 A silt cleaning device for water environment is administered
CN113185075A (en) * 2021-04-19 2021-07-30 谢书炜 Bottom sludge control discharge device for cement fermentation tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111749294A (en) * 2020-06-11 2020-10-09 上海市水利工程设计研究院有限公司 A silt cleaning device for water environment is administered
CN113185075A (en) * 2021-04-19 2021-07-30 谢书炜 Bottom sludge control discharge device for cement fermentation tank
CN113185075B (en) * 2021-04-19 2023-10-24 四川省兆迪水泥有限责任公司 Bottom silt control discharge device for cement fermentation tank

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