CN107574918A - A kind of device for dragging dregs - Google Patents

A kind of device for dragging dregs Download PDF

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Publication number
CN107574918A
CN107574918A CN201710919989.XA CN201710919989A CN107574918A CN 107574918 A CN107574918 A CN 107574918A CN 201710919989 A CN201710919989 A CN 201710919989A CN 107574918 A CN107574918 A CN 107574918A
Authority
CN
China
Prior art keywords
screen frame
dragging
well
housing
casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710919989.XA
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Chinese (zh)
Inventor
雷明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Shengyu Drainage Systems Co Ltd
Original Assignee
Wuhan Shengyu Drainage Systems Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Shengyu Drainage Systems Co Ltd filed Critical Wuhan Shengyu Drainage Systems Co Ltd
Priority to CN201710919989.XA priority Critical patent/CN107574918A/en
Publication of CN107574918A publication Critical patent/CN107574918A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F7/00Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools

Abstract

The present invention provides a kind of device for dragging dregs, including drags for slag filter screen, screen frame and two guide rails be arrangeding in parallel;The screen frame includes housing and inside casing, and circumferential installing zone is formed between the housing and inside casing;The opening for dragging for slag filter screen is installed in the installing zone;The screen frame is arranged between two guide rails be arrangeding in parallel, and two side frames of the screen frame are slidably connected with guide rail respectively.By setting the device for dragging dregs of the present invention in abandoned stream well, shunting well or Vatch basin, the pollutant in sewage can be effectively intercepted, simultaneously because the presence of baffle plate, collects floating object without artificial, save manpower;The present apparatus elevates the pollutant intercepted by lifting device in the lump, and pollutant is carried out into collection and uniform disposal, effectively prevent the blocking of abandoned stream well, shunting well or Vatch basin and the pollution of natural water.

Description

A kind of device for dragging dregs
Technical field
The invention belongs to drainage system technical field, and in particular to a kind of device for dragging dregs.
Background technology
In China's sewerage system, sewage network water level remains high for a long time, causes floating pollutants in abandoned stream well Sewage treatment plant is cannot be introduced into, with the accumulation of floating pollutants in well, makes to produce unpleasant and toxic gas in abandoned stream well, influences Surrounding enviroment.Therefore, it is necessary to which device for dragging dregs pollutes to intercept the floating object carried in rainwater and sewage, precipitum and suspension etc. Thing, when rainwater and the sewage is passed through device for dragging dregs, a large amount of pollutants are intercepted so that into each processing equipment of drainage system Rainwater and sewage are more clean, are effectively prevented from the Peculiar Smell of abandoned stream well, it is possibility to have prevent blocking to effect.
Dragging for slag filter screen and screen frame, it is necessary to have stable connection, more during work as the key component in device for dragging dregs Change the characteristics of easily disassembled when dragging for slag filter screen.Drag for slag filter screen and screen frame in existing device for dragging dregs do not possess above-mentioned spy typically Point.For example, a kind of convertible gutter inlet automatic overflow pollution cutting device is disclosed in document CN205171647U, wherein, filtering is cut The dirty string bag is detachably connected by linking up with deck or casing.By this connected mode, although filtering cuts the dirty string bag and is easy to Ground can be connected or dismantle with deck or casing, but in the course of the work, filtering cut the dirty string bag be also very easy to from deck or Split away off on casing, cause interception result to decline.
As the construction of drainage pipeline networks in China city is more and more perfect, can be achieved to drag for slag filter screen and filter there is an urgent need to one kind It is completely embedded between screen frame frame and quick separating and the device for dragging dregs of installation can be realized.
The content of the invention
To solve the above problems, the present invention provides a kind of device for dragging dregs, realize screen frame and drag for the effective of slag filter screen Connection, make to drag for the installation and removal of slag filter screen etc. more quick.
The present invention provides following technical scheme:
A kind of device for dragging dregs, the device for dragging dregs include dragging for slag filter screen, screen frame and two guide rails be arrangeding in parallel;
The screen frame includes housing and inside casing, and circumferential installing zone is formed between the housing and inside casing;
The opening for dragging for slag filter screen is installed in the installing zone;
The screen frame is arranged between two guide rails be arrangeding in parallel, two side frames of the screen frame respectively with Guide rail is slidably connected.
According to the present invention, the installing zone that the housing is formed with the inside casing is U-type groove, described to drag for opening for slag filter screen Frenulum is equipped with mouthful, the frenulum can be tightened up in the U-type groove.
According to the present invention, the housing and the inside casing clamping, and the opening for dragging for slag filter screen is located in outside described In installing zone between frame and the inside casing.
According to the present invention, the inside casing is included with the inside edge of clamping on the inside of the housing and positioned at the housing side wall Outer edge.
According to the present invention, the outer edge is bolted to connection with the housing side wall, for fixed positioned at described Slag filter screen is dragged for described between outer edge and the housing side wall.
According to the present invention, the screen frame includes several housings and inside casing, and all housings be set up in parallel for Integrative-structure.
According to the present invention, the screen frame including several housings and inside casing can install several and drag for slag filter screen.
According to the present invention, the both sides of the screen frame are provided with sliding block and pulley, the sliding block and pulley and the guide rail It is slidably connected.
According to the present invention, water (flow) direction is vertical with plane determined by described two guide rails be arrangeding in parallel.
According to the present invention, the device for dragging dregs also includes baffle plate, and the baffle plate setting is dragging for the upstream end of slag filter screen, and And the bottom face of baffle plate is located between the upper and lower side frame of screen frame.
According to the present invention, the baffle plate is fixed dam, and the both sides of the fixed dam are fixed on abandoned stream well or shunting well Or on the borehole wall of Vatch basin.
Preferably, the fixed dam is parallel with plane determined by the closed slide, and with the closed slide The distance between identified plane L meets following relational expressions:
L >=S/D,
Wherein, S is the sectional area of abandoned stream well or the water inlet pipe of shunting well or Vatch basin, and D is abandoned stream well or shunting well or cut Flow the width of well.
According to the present invention, the baffle plate is floating barrier, and the guide rail is double guide rails, a wherein guide rail for double guide rails It is oriented to for screen frame, another guide rail of double guide rails is oriented to for floating barrier.
Wherein, a side rails of two side frames of the screen frame respectively with double guide rails are flexibly connected.
Wherein, the bottom for the guide rail that double guide rails are connected with screen frame and the abandoned stream well or shunting well or dam The bottom contact of well.
Wherein, another guide rail of double guide rails is flexibly connected with the floating barrier.
Wherein, the bottom for the guide rail that double guide rails are connected with floating barrier is less than the upper ledge 50- of screen frame 150mm, preferably 100mm.
According to the present invention, the device for dragging dregs also includes lifting device, and the lifting device is located at the screen frame Top, and be connected with the screen frame.
According to the present invention, the lifting device includes lifting rope, pulley mechanism and pull unit, one end of the lifting rope and institute Screen frame connection is stated, the other end of the lifting rope is connected by pulley mechanism with pull unit.
According to the present invention, the pull unit is achieved in that manually or electrically.
According to the present invention, the height of the upper ledge of the screen frame is depending on the height of the water surface, it is desirable to higher than normal water The height 300-500mm in face.
According to the present invention, the device for dragging dregs can also include oil absorbent material and screen frame;The oil absorbent material is placed in screen frame, institute Screen frame is stated by hinge with screen frame upper end to be connected.
According to the present invention, the oil absorbent material can use lipophile superfine fibre adhesive-bonded fabric or other arbitrarily can be with oil suction Material.
According to the present invention, the bottom of the screen frame is provided with the supporting plate extended along water (flow) direction, described to drag for slag filter screen Part is located at least in supporting plate.
The present invention also provides following technical scheme:
A kind of shunting well or abandoned stream well or Vatch basin, it includes shunting well or abandoned stream well or Vatch basin well body and is arranged at institute State the above-mentioned device for dragging dregs in well body.By setting above-mentioned device for dragging dregs in well body, can effectively intercept in sewage compared with Big particle diameter pollutant (floating object, suspension and precipitum) and greasy dirt etc., ensure the unimpeded of pipeline and upstream device.
Beneficial effects of the present invention:
Device for dragging dregs provided by the invention is a kind of filtration for intercepting greater particle size pollutant in sewage, main to install In abandoned stream well, shunting well or Vatch basin, to intercept the floating object in sewage, suspension and precipitum.What the present invention designed Screen frame includes housing and inside casing, and circumferential installing zone is formed between the housing and inside casing, passes through the installing zone Design realizes screen frame and drags for effective connection of slag filter screen, makes to drag for installation and removal of slag filter screen etc. more fast, i.e., convenient Change.Specifically, devising two ways, one kind is that the installing zone is designed as into U-type groove, the opening for dragging for slag filter screen It is equipped with frenulum, the frenulum can be tightened up in the U-type groove, so as to realize screen frame and drag for slag filter screen effectively and rapidly Connection and fast quick-detach;Another method is by the housing and the inside casing clamping, and the opening folder for dragging for slag filter screen In installing zone between the housing and the inside casing, so as to realize screen frame and drag for effective quick connection of slag filter screen With fast quick-detach.It can also be multiple that the installing zone, which can be designed as one, allow a screen frame install one or Person is multiple to drag for slag filter screen, effectively extends the service life for dragging for slag filter screen.
By setting the device for dragging dregs of the present invention in abandoned stream well, shunting well or Vatch basin, effectively can intercept in sewage Pollutant, simultaneously because the presence of baffle plate, collects floating object without artificial, save manpower;The dirt that the present apparatus will intercept Dye thing is elevated by lifting device in the lump, and pollutant is carried out into collection and uniform disposal, effectively prevent abandoned stream well, shunting well Or the blocking of Vatch basin and the pollution of natural water.
Brief description of the drawings
Fig. 1 is the screen frame structural representation of the present invention;Wherein, a is the front view of screen frame;B is screen frame Left view;C is the top view of screen frame;B ' is b partial structural diagram;C ' is c partial structural diagram;
Fig. 2 is the structural representation that the screen frame of the present invention is connected with dragging for slag filter screen;Wherein, a is screen frame with dragging for The front view of slag filter screen connection;B is the top view that screen frame is connected with dragging for slag filter screen;
Fig. 3 is the device for dragging dregs schematic diagram of the present invention;Wherein, a is the front view of device for dragging dregs;B is a left side for device for dragging dregs View;B ' is b partial structural diagram;
Fig. 4 is arranged on showing in abandoned stream well or shunting well or Vatch basin for the device for dragging dregs with fixed dam of the present invention It is intended to;
Fig. 5 is arranged on showing in abandoned stream well or shunting well or Vatch basin for the device for dragging dregs with floating barrier of the present invention It is intended to;
Fig. 6 is the structural representation that the screen frame of the present invention is connected with guide rail;
Wherein, 1 is drags for slag filter screen, and 2 be screen frame, and 3 be guide rail, and 4 be lifting device, and 5 be fixed dam, and 6 be floating Baffle plate, 7 be frenulum, and 8 be rope clamp, and 9 be water inlet, and 10 be delivery port, and 11 be current, and 12 be precipitum and suspension, and 13 be drift Float, 14 be housing, and 15 be inside casing, and 16 be bolt.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention Rather than limit the scope of the invention.Furthermore, it is to be understood that after content disclosed in this invention has been read, ability Field technique personnel can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the protection that the present invention is limited Within the scope of.
Embodiment 1
Device for dragging dregs with fixed dam 5 as shown in Figure 4, the device for dragging dregs are arranged in shunting well, play and block Cut the effect of greater particle size pollutant in sewage.Including dragging for, slag filter screen 1, screen frame 2 are parallel with two to be set the device for dragging dregs The guide rail 3 put;
The screen frame 2 includes housing and inside casing, and circumferential installing zone is formed between the housing and inside casing;It is described outer The installing zone that frame is formed with the inside casing is U-type groove, and the opening for dragging for slag filter screen 1 is equipped with frenulum 7, the frenulum 7 can tighten up in the U-type groove.The frenulum 7 tied up in U-type groove is attached with rope clamp 8.The screen frame 2 is set Between two guide rails be arrangeding in parallel 3, the both sides of screen frame 2 are provided with sliding block and pulley, the sliding block and pulley with it is described Guide rail 3 is slidably connected.
Wherein, the direction of current 11 is vertical with plane determined by described two guide rails 3 be arrangeding in parallel.
Wherein, the device for dragging dregs also includes fixed dam 5, and the fixed dam 5 is arranged on the upstream for dragging for slag filter screen 1 Place, also, the bottom face of fixed dam 5 is located between the upper and lower side frame of screen frame 2, and the both sides of the fixed dam 5 are fixed On the borehole wall of shunting well.
Wherein, the fixed dam 5 is parallel with plane determined by the closed slide 3, and with the closed slide 3 The distance between identified plane L meets following relational expressions:
L >=S/D,
Wherein, S is the sectional area of the water inlet pipe of shunting well, and D is the width of shunting well.
Wherein, the device for dragging dregs also includes lifting device 4, and the lifting device 4 is located at the upper of the screen frame 2 Portion, and be connected with the screen frame 2.
Wherein, the lifting device 4 includes lifting rope, pulley mechanism and pull unit, one end of the lifting rope and the filter Screen frame frame 2 is connected, and the other end of the lifting rope is connected by pulley mechanism with pull unit.
Wherein, the pull unit is achieved in that manually or electrically.
Wherein, the lifting device 4 has auto-lock function, i.e. screen frame 2 will not decline because of Gravitative Loads.
Wherein, the height of the upper ledge of the screen frame 2 is depending on the height of the water surface, it is desirable to higher than the height of Normal Water Surface Spend 300-500mm.
Wherein, the device for dragging dregs can also include oil absorbent material and screen frame;The oil absorbent material is placed in screen frame, the screen frame It is connected by hinge with the upper end of screen frame 2.
Wherein, the oil absorbent material can use lipophile superfine fibre adhesive-bonded fabric or other arbitrarily can be with the material of oil suction.
Wherein, the screen frame 2 can include several housings and inside casing, and all housings are set up in parallel as one Body structure, also, the screen frame 2 including several housings and inside casing can install several and drag for slag filter screen 1.
Wherein, the bottom of the screen frame 2 is provided with the supporting plate extended along water (flow) direction, described to drag for the part of slag filter screen 1 It is located at least in supporting plate.
During fine day, wastewater level in shunting well is less than the height for dragging for the upper ledge of slag filter screen 1, the bulky grain pollutant in sewage Slag filter screen 1 can be effectively dragged for intercept;
During rainfall, the combined sewage water level in shunting well raises, and the sedimentation pollutant, suspended contaminant in combined sewage are still Slag filter screen 1 can so be dragged for intercept, floating pollutants are intercepted by fixed dam 5, and after rain stops, water level reduces, floating pollutants Decline with water level decreasing, water level is dragged for slag filter less than floating pollutants after the minimum altitude of fixed dam 5 under hydraulic action Net 1 intercepts.
After dragging in slag filter screen 1 contaminant collecting to a certain extent, in the presence of lifting device 4, pollutant is proposed point Flow outside well, and the frenulum 7 of screen frame 2U type grooves is tied up to before untiing, slag filter screen 1 is dragged in taking-up, outwells pollutant, then will be clear The slag filter screen 1 that drags for after reason is reinstalled in screen frame 2, and screen frame 2 is replaced in shunting well by lifting device 4 Collect pollutant.
Embodiment 2
Device for dragging dregs with floating barrier 6 as shown in Figure 5, the device for dragging dregs are arranged in shunting well, play and block Cut the effect of greater particle size pollutant in sewage.Including dragging for, slag filter screen 1, screen frame 2 are parallel with two to be set the device for dragging dregs The guide rail 3 put;
The screen frame 2 includes housing 14 and inside casing 15, and the installation of circumference is formed between the housing 14 and inside casing 15 Area;The housing 14 and the clamping of inside casing 15, and the opening for dragging for slag filter screen 1 be located in the housing 14 with it is described interior In installing zone between frame 15.The screen frame 2 is arranged between two guide rails be arrangeding in parallel 3, the both sides of screen frame 2 Provided with sliding block and pulley, the sliding block and pulley are slidably connected with the guide rail 3.
Wherein, the inside casing 15 is included with the inside edge of the inner side clamping of housing 14 and positioned at the outer of the housing side wall Edge.
Wherein, the outer edge is fixedly connected with the side wall of the housing 14 by bolt 16, for fixed positioned at described Slag filter screen 1 is dragged for described between outer edge and the side wall of the housing 14.
Wherein, the direction of current 11 is vertical with plane determined by described two guide rails 3 be arrangeding in parallel.
Wherein, the device for dragging dregs also includes floating barrier 6, and the floating barrier 6 is arranged on the upstream for dragging for slag filter screen 1 Place, also, the bottom face of floating barrier 6 is located between the upper and lower side frame of screen frame 2.
Wherein, the guide rail 3 is double guide rails, and a wherein guide rail for double guide rails is oriented to for screen frame 2, and described pair is led Another guide rail of rail is that floating barrier 6 is oriented to.
Wherein, a side rails of two side frames of the screen frame 2 respectively with double guide rails are flexibly connected.
Wherein, the bottom for the guide rail that double guide rails are connected with screen frame 2 contacts with the bottom of the shunting well.
Wherein, another guide rail of double guide rails is flexibly connected with the floating barrier 6.
Wherein, the bottom for the guide rail that double guide rails are connected with floating barrier 6 is less than the upper ledge 50- of screen frame 2 150mm, preferably 100mm.
Wherein, the device for dragging dregs also includes lifting device 4, and the lifting device 4 is located at the upper of the screen frame 2 Portion, and be connected with the screen frame 2.
Wherein, the lifting device 4 includes lifting rope, pulley mechanism and pull unit, one end of the lifting rope and the filter Screen frame frame 2 is connected, and the other end of the lifting rope is connected by pulley mechanism with pull unit.
Wherein, the pull unit is achieved in that manually or electrically.
Wherein, the lifting device 4 has auto-lock function, i.e. screen frame 2 will not decline because of Gravitative Loads.
Wherein, the height of the upper ledge of the screen frame 2 is depending on the height of the water surface, it is desirable to higher than the height of Normal Water Surface Spend 300-500mm.
Wherein, the device for dragging dregs can also include oil absorbent material and screen frame;The oil absorbent material is placed in screen frame, the screen frame It is connected by hinge with the upper end of screen frame 2.
Wherein, the oil absorbent material can use lipophile superfine fibre adhesive-bonded fabric or other arbitrarily can be with the material of oil suction.
Wherein, the screen frame 2 can include several housings 14 and inside casing 15, and all housings 14 are set side by side Set as one structure, also, the screen frame 2 including several housings 14 and inside casing 15 can install several and drag for slag filter screen 1。
Wherein, the bottom of the screen frame 2 is provided with the supporting plate extended along water (flow) direction, described to drag for the part of slag filter screen 1 It is located at least in supporting plate.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above-mentioned embodiment.It is all Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., it should be included in the guarantor of the present invention Within the scope of shield.

Claims (10)

1. a kind of device for dragging dregs, it is characterised in that the device for dragging dregs includes dragging for slag filter screen, screen frame and two be arranged in parallel Guide rail;
The screen frame includes housing and inside casing, and circumferential installing zone is formed between the housing and inside casing;
The opening for dragging for slag filter screen is installed in the installing zone;
The screen frame is arranged between two guide rails be arrangeding in parallel, two side frames of the screen frame respectively with guide rail It is slidably connected.
2. device for dragging dregs according to claim 1, it is characterised in that the installation that the housing is formed with the inside casing Area is U-type groove, and the opening for dragging for slag filter screen is equipped with frenulum, and the frenulum can be tightened up in the U-type groove.
3. device for dragging dregs according to claim 1, it is characterised in that the housing and the inside casing clamping, and described drag for The opening of slag filter screen is located in the installing zone between the housing and the inside casing;
Preferably, the inside casing includes and the inside edge of clamping on the inside of the housing and the outer edge positioned at the housing side wall;
Preferably, the outer edge is bolted to connection with the housing side wall, for it is fixed positioned at the outer edge with Slag filter screen is dragged for described between the housing side wall.
4. according to the device for dragging dregs described in claim any one of 1-3, it is characterised in that the screen frame is included outside several Frame and inside casing, and all housings are set up in parallel and are structure as a whole;
Preferably, the screen frame including several housings and inside casing can install several and drag for slag filter screen.
5. according to the device for dragging dregs described in claim any one of 1-4, it is characterised in that the both sides of the screen frame, which are provided with, to be slided Block and pulley, the sliding block and pulley are slidably connected with the guide rail;
Preferably, water (flow) direction is vertical with plane determined by described two guide rails be arrangeding in parallel.
6. according to the device for dragging dregs described in claim any one of 1-5, it is characterised in that the device for dragging dregs also includes baffle plate, The baffle plate setting is dragging for the upstream end of slag filter screen, also, the bottom face of baffle plate is located between the upper and lower side frame of screen frame.
7. device for dragging dregs according to claim 6, it is characterised in that the baffle plate is fixed dam, the fixed dam Both sides be fixed on the borehole wall of abandoned stream well or shunting well or Vatch basin;
Preferably, the fixed dam is parallel with plane determined by the closed slide, and with closed slide institute really The distance between fixed plane L meets following relational expressions:
L >=S/D,
Wherein, S is the sectional area of abandoned stream well or the water inlet pipe of shunting well or Vatch basin, and D is abandoned stream well or shunting well or Vatch basin Width.
8. device for dragging dregs according to claim 6, it is characterised in that the baffle plate is floating barrier, and the guide rail is double Guide rail, a wherein guide rail for double guide rails are oriented to for screen frame, and another guide rail of double guide rails is oriented to for floating barrier;
Preferably, a side rails of two side frames of the screen frame respectively with double guide rails are flexibly connected;
Preferably, the bottom for the guide rail that double guide rails are connected with screen frame and the abandoned stream well or shunting well or Vatch basin Bottom contact;
Preferably, another guide rail of double guide rails is flexibly connected with the floating barrier;
Preferably, the bottom for the guide rail that double guide rails are connected with floating barrier is less than the upper ledge 50-150mm of screen frame, Preferably 100mm.
9. according to the device for dragging dregs described in claim any one of 1-8, it is characterised in that the device for dragging dregs also includes lifting dress Put, the lifting device is located at the top of the screen frame, and is connected with the screen frame;
Preferably, the lifting device includes lifting rope, pulley mechanism and pull unit, one end of the lifting rope and the filter screen frame Frame is connected, and the other end of the lifting rope is connected by pulley mechanism with pull unit;
Preferably, the pull unit is achieved in that manually or electrically;
Preferably, the height of the upper ledge of the screen frame is depending on the height of the water surface, it is desirable to higher than the height of Normal Water Surface 300-500mm;
Preferably, the device for dragging dregs can also include oil absorbent material and screen frame;The oil absorbent material is placed in screen frame, and the screen frame leads to Hinge is crossed with screen frame upper end to be connected;
Preferably, the oil absorbent material can use lipophile superfine fibre adhesive-bonded fabric or other arbitrarily can be with the material of oil suction;
Preferably, the bottom of the screen frame is provided with the supporting plate extended along water (flow) direction, described to drag for slag filter screen part at least In supporting plate.
10. a kind of shunting well or abandoned stream well or Vatch basin, including shunting well or abandoned stream well or Vatch basin well body and it is arranged at described The device for dragging dregs described in claim any one of 1-9 in well body.
CN201710919989.XA 2017-09-30 2017-09-30 A kind of device for dragging dregs Pending CN107574918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710919989.XA CN107574918A (en) 2017-09-30 2017-09-30 A kind of device for dragging dregs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710919989.XA CN107574918A (en) 2017-09-30 2017-09-30 A kind of device for dragging dregs
PCT/CN2017/116927 WO2019061868A1 (en) 2017-09-30 2017-12-18 Slag dredging device

Publications (1)

Publication Number Publication Date
CN107574918A true CN107574918A (en) 2018-01-12

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CN (1) CN107574918A (en)
WO (1) WO2019061868A1 (en)

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Application publication date: 20180112