CN107433289A - Energy-efficient descaling header - Google Patents
Energy-efficient descaling header Download PDFInfo
- Publication number
- CN107433289A CN107433289A CN201610359731.4A CN201610359731A CN107433289A CN 107433289 A CN107433289 A CN 107433289A CN 201610359731 A CN201610359731 A CN 201610359731A CN 107433289 A CN107433289 A CN 107433289A
- Authority
- CN
- China
- Prior art keywords
- header
- bushing
- plunger
- water
- energy
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
Abstract
The present invention relates to a kind of energy-efficient descaling header, the dephosphorization collector includes header assemblies, drive component and feedback component, and the drive component is arranged between header assemblies and feedback component；The header assemblies include header body, plunger, bushing and end cap, and the end cap is arranged on the both ends of header body, and the bushing is arranged on the inside of header body, sealing is provided between header body and bushing.The technical scheme employs inner equilibrium structure：After water under high pressure enters collector, by the small sircle hole on plunger dividing plate, water under high pressure acts on two end faces of plunger, due to plunger double side acting area equation, so caused power is also equal, overcomes seal friction force just to make its displacement as long as giving the slight power of plunger.The technical scheme, so as to reduce the consumption of water, can reduce the temperature drop of belt steel surface according to the width adjust automatically water outlet width of rolling steel billet.
Description
Technical field
The present invention relates to a kind of dephosphorization collector, and in particular to a kind of energy-efficient descaling header, belongs to hot rolling production and sets
Standby technical field.
Background technology
The principle of scale removal equipment is to utilize water under high pressure on hot rolling line（Pressure is up to 250MPa）Rolled piece surface is carried out
Injection, the iron scale on rolled piece surface is removed by the impulsive force of water under high pressure；Descaling system is typically sprayed by de-scaling pumping plant, de-scaling
Valve and the descaling mill at scene composition；Water under high pressure is delivered to Scale removing valve by pumping plant, and by the open and close controlling of Scale removing valve, water under high pressure is sent
Sprayed after to descaling header through nozzle.De-scaling pumping plant is generally equipped with the pump group of more than two, and live De-scaling box is generally equipped with one
Group or two groups of collectors, every group of collector are made up of upper and lower two water pipes with nozzle.The major defect of existing collector is:Descaling header
Design water spray width be usually to consider according to the rolled piece width of maximum, therefore in most cases water spray width is more than
Actual slab（Strip）Width, the purpose for the arrangement is that in order that completing the de-scaling of different in width strip with same root collector
Demand, manifold construction is simple, and investment is less, but such structure also brings the waste of de-scaling water.With the hot rolling of plum steel 1780 essence
Exemplified by rolling descaling header, the water spray width of collector is in 1765mm, and 2014, and annual rolled piece mean breadth is 1220mm, with
Average proportions are calculated, and the water of waste accounts for the 31% of total injection flow rate.It can be seen that several nozzles at collector both ends often use
Wasted less than causing, and excessive water yield is also easy to cause slab（Strip）The larger temperature drop on surface（Finish rolling entrance
De-scaling single injection event temperature drop is at 15-20 DEG C）, the service life of the equipment in collector edge water nozzle spray regime also greatly shortens.
Because market is also continuously increased to the surface quality requirements more and more higher of hot-rolled product, the road number of de-scaling, the dosage of de-scaling water
It is also increasing with the power of descaling pump.Although the application of VFC and speed Control technology is more universal, descaling system
Power consumption and water consume are still one of focal issue of rolling line.With developing rapidly for steel and iron industry, shortage of water resources is increasingly becoming system
About Iron and Steel Enterprises in China survival and development an important factor for one of.Particularly China north and south geographical conditions are different, southern water resource
Relative abundance, northern water resource is relative to be lacked.The economy of so water resource, which seems, to be even more important.Global economic crisis makes steel
Enterprise enters low margin age, and cost control problem is further prominent.How research improves iron and steel enterprise's water resource utilization efficiency, reduces
A series of problems, such as ton cost for wastewater treatment, has turned into the active demand of iron and steel enterprise.Therefore descaling system is continued to optimize, improved
De-scaling efficiency, it is the task of top priority to reduce de-scaling cost.In existing technology, without the high pressure descaling collection that can control water outlet width
Pipe, also only section cooling collector uses two methods of edge-masking and internal piston formula blocking tap for water to some at present.Due to de-scaling
System pressure is higher, and edge-masking is not suitable on high pressure descaling collector, and the water blocked also bad recovery, does not have water saving and makees
With.
Chinese patent CN200910047958.5 is disclosed《A kind of laminar flow width-offset-adjusting cooling device and controlling party
Method》, can be required according to the cooling technique of strip different in width, region of the regulation cooling water on channel width direction.The dress
Put and directly blocked water nozzle using built-in piston, water-saving result is obvious.But de-scaling pressure is generally up to 25MPa, and laminar flow is general
Only 0.1-0.3MPa or so, operating pressure differ greatly, if same structure indiscriminately imitate had on descaling header it is following several
Individual shortcoming：1. after entering high pressure descaling water among piston, water under high pressure can be acted directly on the inside of piston, very big thrust is produced,
Cause to move outside piston.2. its structure is really single-acting form, high even if changing high power motor or other motivation of adjustment sources into
It is all extremely difficult that pressure water adjusts piston again after entering.
Chinese patent CN2014108354771 is disclosed《A kind of hot-strip production line de-scaling control method and dress
Put》, the transfer rate etc. when mainly transmitting rolled piece by obtaining roller-way, control de-scaling control valve group opening and closing, avoid water spray collection
The empty spray of pipe, saves water resource.But, when rolling narrow steel billet, collector nozzle is fully open for it, and the water nozzle of edge can spray high pressure
Water, still cause to waste, and certain service life washed away, have impact on edge equipment is caused to edge equipment.Therefore, urgently
A kind of needs new technical schemes solve above-mentioned technical problem.
The content of the invention
The present invention is exactly for technical problem present in prior art, there is provided a kind of energy-efficient descaling header, should
Technical scheme is compact-sized, reasonable in design, can be according to the width adjust automatically water outlet width of rolling steel billet, so as to reduce disappearing for water
Consumption, reduce the temperature drop of belt steel surface.
To achieve these goals, technical scheme is as follows, and a kind of energy-efficient descaling header, its feature exists
Include header assemblies, drive component and feedback component in the dephosphorization collector, the drive component is arranged on header assemblies and anti-
Between feedback component.
As a modification of the present invention, the header assemblies include header body, plunger, bushing and end cap, described
End cap is arranged on the both ends of header body, and the bushing is arranged on the inside of header body, set between header body and bushing
There is sealing, can prevent water under high pressure from entering to cause this bulk damage between the two.
As a modification of the present invention, the header body side is evenly equipped with 24 water nozzles perpendicular to axis direction, separately
A flange is welded in side, and bushing has 24 circular holes perpendicular to axis direction, and is communicated one by one with the water nozzle in header body.
As a modification of the present invention, the bushing is arranged to cylindrical barrel structure, and whole tubular structure wraps successively
Include entity part, edge intercommunication part, medium position and intersect intercommunication part, the edge intercommunication part is provided with 5 circles
The annular groove of Kong Bingyu inwalls communicates one by one, and there is seal groove the both sides of each annular groove, totally 6；Medium position shares 14
Individual circular hole simultaneously communicates with bushing inner chamber；Intersect intercommunication part, share 5 circular holes, inwall has 5 annular grooves, groove and circular hole
Intersected by the secret tunnel of inside and communicated.
As a modification of the present invention, the plunger is arranged to cylindrical barrel structure, is internally provided with dividing plate, described
Dividing plate is provided centrally with through hole, installs cylinder piston rod, small sircle hole is provided with around through hole, on the small sircle hole and bushing
Circular hole is corresponding, and mounting hole is provided with the plunger tubular structure.
As a modification of the present invention, the drive component is a cylinder, and collector side end face is arranged on by bolt, main
Have and be internally provided with work including piston rod, rod cavity end cap, cylinder barrel, piston, blind chamber end cap and magnetic scale guide rod, the cylinder barrel
Plug, one end set rod chamber end cap, and the other end is provided with blind chamber end cap, and piston rod is connected through cylinder barrel inside with magnetic scale guide rod
Connect.Main function is to provide displacement power for plunger.
As a modification of the present invention, the feedback component includes magnetic scale, magnet ring, pressing plate and shield, the magnetic scale,
Magnet ring, pressing plate are sequentially connected.Main function is the width according to rolled slab, and the stroke and real time position for obtaining cylinder action are made
For a modification of the present invention, the circular earhole of V-arrangement water leg is suspended on guide rod.
Relative to prior art, the invention has the advantages that, 1）The technical scheme global design is ingenious, compact-sized,
2）The technical scheme employs inner equilibrium structure：After water under high pressure enters collector, by the small sircle hole on plunger dividing plate, water under high pressure is made
Used in two end faces of plunger, due to plunger double side acting area equation, so caused power is also equal, as long as it is light to give plunger
Micro- power overcomes seal friction force just to make its displacement；3）The technical scheme adjusts in real time according to the detection width of strip
The water spray width of collector：Switch control is carried out to aquaporin by the drive device nozzle a number of to collector both ends,
Collector nozzle can be made fully open, several water nozzles of two side portions can also be made symmetrically to close, i.e. the one of two side portions
Multiple water nozzles such as water nozzle, two water nozzles can be closed symmetrically simultaneously, reach the purpose of water saving；4）The technical scheme cost is relatively low,
It is easy to further popularization and application.
Brief description of the drawings
Fig. 1 overall structure diagrams in maximum position for the present invention；
Fig. 2 is liner structure schematic diagram of the present invention；
Fig. 3 is switch plunger structure diagram of the present invention；
Fig. 4 is structural representation of the present invention in minimum position；
1- end caps in figure；2- guide rods；3- header bodies；4- bushings；5- plungers；6- nozzles；7- nuts；8- piston rods；9- rod cavities
End cap；10- cylinder barrels；11- pistons；The blind chamber end caps of 12-；13- magnetic scale guide rods；14- magnetic scales；15- magnet rings；16- pressing plates；17- shields,
41st, entity part, 41, edge intercommunication part, 43, medium position, 44, intersect intercommunication part.
Embodiment：
In order to deepen the understanding of the present invention, the present embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：Referring to Fig. 1-Fig. 4, a kind of energy-efficient descaling header, the dephosphorization collector include header assemblies,
Drive component and feedback component, the drive component are arranged between header assemblies and feedback component, and the header assemblies include
Header body 3, plunger 5, bushing 4 and end cap 1, the end cap 1 are arranged on the both ends of header body 3, and the bushing 4 is arranged on
The inside of header body 3, sealing is provided between header body 3 and bushing 4, can prevent water under high pressure from entering to make between the two
Cost bulk damage；The side of header body 3 is evenly equipped with 24 water nozzles perpendicular to axis direction, and opposite side welds a flange,
Bushing has 24 circular holes perpendicular to axis direction, and is communicated one by one with the water nozzle in header body, referring to Fig. 4, the bushing 4
Cylindrical barrel structure is arranged to, whole tubular structure includes entity part 41, edge intercommunication part 42, medium position 43 successively
And intersect intercommunication part 44, the edge intercommunication part 42 is provided with 5 circular holes and communicated one by one with the annular groove of inwall,
There is seal groove the both sides of each annular groove, totally 6；Medium position shares 14 circular holes and communicated with bushing inner chamber；Intersect mutual
Logical part, 5 circular holes are shared, inwall there are 5 annular grooves, and groove is intersected with circular hole by the secret tunnel of inside to be communicated.In figure from
Count from left to right, the 1st circular hole communicates with the 5th groove, and the 2nd circular hole communicates with the 4th groove, the 3rd circular hole and the 3rd phase
Logical, the 4th circular hole communicates with the 2nd groove, and the 5th circular hole communicates with the 1st groove, and there is sealing the both sides of each annular groove
Groove, totally 6；Referring to Fig. 3, the plunger 5 is arranged to cylindrical barrel structure, as shown in figure 3, dividing plate is internally provided with, it is described
Dividing plate is provided centrally with through hole, installs cylinder piston rod, and cylinder piston rod is connected with dividing plate central through hole, set around through hole
Small sircle hole is equipped with, the small sircle hole is corresponding with the circular hole on bushing, mounting hole is provided with the plunger tubular structure, according to reality
Need, the mounting hole of certain amount, length and spacing is set；The drive component is a cylinder, and collector is arranged on by bolt
Side end face, mainly include piston rod 8, rod cavity end cap 9, cylinder barrel 10, piston 11, blind chamber end cap 12 and magnetic scale guide rod 13, it is described
Cylinder barrel is internally provided with piston 11, and one end sets rod chamber end cap 9, and the other end is provided with blind chamber end cap 12, and piston rod passes through cylinder
Cylinder is internal to be connected with magnetic scale guide rod, and main function is to provide displacement power for plunger.The feedback component includes magnetic scale 14, magnetic
Ring 15, pressing plate 16 and shield 17, the magnetic scale 14, magnet ring 15, pressing plate 16 are sequentially connected, and main function is according to rolled slab
Width, obtain cylinder action stroke and real time position.
Operation principle：Reference picture 1- Fig. 4, as shown in Fig. 1 positions, water under high pressure divides three after flange entrance to bushing inner chamber soldier
Road：A part directly sprays through the long waist shaped hole in the middle part of plunger from 14 water nozzles among collector；A part of water passes through toward the right
Five mounting holes on the right of plunger spray from five water nozzles respectively；A part is turned left, and passes through first row mounting hole（Turned left from the right side
Number）→ the five groove（Count from left to right）→ the first water nozzle water outlet（Count from left to right）, be second respectively by that analogy,
3rd, four, five water nozzle water outlet.It is actually opened in a flash due to being water under high pressure, almost do not see successively, now 24 water nozzles all go out
Water, that is, width maximum position.
When rolling slightly narrow slab, needing to block a water nozzle of edge, only cylinder need to be pushed away to a water nozzle to the left
The stroke of spacing, now plunger move right, first row mounting hole leads to second aqueous phase on the right of plunger（Turned left number from the right side）, post
The physical location of plug blocks first water nozzle in the presence of sealing；Same plunger is moved to the left, the 5th row mounting hole（From a left side
Turn right number）The 4th groove is moved on to, and the 5th groove is blocked by the entity part of plunger, due to the 5th groove and first
Individual water nozzle is connected, so first water nozzle not water outlet.
Equally, cylinder need to only be turned left when needing to block edge two, three, four, five water nozzles dynamic corresponding
Stroke.Schematic diagram when figure four is five water nozzle Close Alls of edge.
The present apparatus can pneumatically, surge, can also be electronic etc. automation driving, the stroke of action is by built-in position
Sensor feedback data, and controlled by reversal valve.
In addition, the technical scheme can also be designed so, energy-efficient descaling header, mainly including three parts：Collector
Component, drive component, feedback component；According to the spacing that can roll minimum widith, Breadth Maximum and two neighboring water nozzle, so that it may
To determine that edge needs to block the number n of water nozzle, manifold portion mainly includes header body, plunger, bushing etc., header body one
Side is evenly equipped with several water nozzles perpendicular to axis direction, and the number of water nozzle is determined by maximum rolling width, and opposite side welds one
Flange, is the import of press water, and two end caps are separately mounted to the both ends of header body, are provided with sealing between the two, prevent
Dielectric leakage.Bushing is arranged on inside header body, be a cylindrical barrel structure, the small stair of header body indoor design with
The end cap of opposite side can make bushing in axially positioning completely；The outer ring of bushing is provided with sealing with header body inwall, acts on
It is to prevent water under high pressure enters from causing this bulk damage between the two；Bushing perpendicular to axis direction be designed with header body
Several circular holes of water nozzle as many, and communicated one by one with water nozzle, bushing can be divided into four parts：Entity part, length are bigger
Being multiplied by water nozzle spacing a needs the number n of blocking tap for water；Edge intercommunication part, length is multiplied by slightly larger than water nozzle spacing a needs blocking tap for water
Number n, endoporus are correspondingly designed with n annular groove, and channel section width communicates slightly larger than circular hole and with the circular hole of same position, often
Individual annular groove has two seal grooves, common n+1.The medium position of bushing be designed with one vertically with the circular hole of axis and with
Header body water-in flange is in the same direction with one heart, ensures that press water can enter bushing inner chamber, minimum rolling width determine middle part length with
The number of middle part circular hole；Intersect intercommunication part, length is multiplied by the number n for needing blocking tap for water slightly larger than water nozzle spacing a, and endoporus is correspondingly set
In respect of n annular groove, channel section width is slightly larger than circular hole, and groove is intersected with circular hole by the secret tunnel of inside to be communicated, and first
Individual circular hole communicates with n-th of groove, and second circular hole communicates with (n-1)th, and the 3rd circular hole communicates with the n-th -2, with such
Push away；Each annular groove has two seal grooves, and common n+1 is individual.Plunger is a cylindrical barrel structure, and one side of endoporus designs one
Dividing plate, the center of dividing plate is a through hole, installs cylinder piston rod, several small sircle holes are designed with around through hole.With on bushing
Circular hole is corresponding, and plunger body required design has the mounting hole of corresponding length and spacing.
It should be noted that above-described embodiment, is not used for limiting protection scope of the present invention, in above-mentioned technical proposal
On the basis of made equivalents or replacement each fall within the scope that the claims in the present invention are protected.
Claims (8)
1. a kind of energy-efficient descaling header, it is characterised in that the dephosphorization collector includes header assemblies, drive component and anti-
Component is presented, the drive component is arranged between header assemblies and feedback component.
2. energy-efficient descaling header according to claim 1, it is characterised in that the header assemblies include collector sheet
Body, plunger, bushing and end cap, the end cap are arranged on the both ends of header body, and the bushing is arranged on the interior of header body
Portion, sealing is provided between header body and bushing.
3. energy-efficient descaling header according to claim 2, it is characterised in that the drive component includes piston
Bar, rod cavity end cap, cylinder barrel, piston, blind chamber end cap and magnetic scale guide rod, the cylinder barrel are internally provided with piston, and one end is provided with
Rod cavity end cap, the other end are provided with blind chamber end cap, and piston rod is connected through cylinder barrel inside with magnetic scale guide rod.
4. the energy-efficient descaling header according to Claims 2 or 3, it is characterised in that the feedback component includes magnetic
Chi, magnet ring, pressing plate and shield, the magnetic scale, magnet ring, pressing plate are sequentially connected.
5. energy-efficient descaling header according to claim 4, it is characterised in that the bushing is arranged to cylindrical tube
Shape structure, whole tubular structure include entity part, edge intercommunication part, medium position and intersect intercommunication part successively.
6. energy-efficient descaling header according to claim 5, it is characterised in that the plunger is arranged to cylindrical tube
Shape structure, dividing plate is internally provided with, the dividing plate is provided centrally with through hole, installs cylinder piston rod, is set around through hole
There is small sircle hole, the small sircle hole is corresponding with the circular hole on bushing, and mounting hole is provided with the plunger tubular structure.
7. energy-efficient descaling header according to claim 6, it is characterised in that the header body side perpendicular to
Axis direction is evenly equipped with 24 water nozzles, and opposite side welds a flange, and bushing has 24 circular holes, and one perpendicular to axis direction
One communicates with the water nozzle in header body.
8. energy-efficient descaling header according to claim 6, it is characterised in that the edge intercommunication part is provided with
5 circular holes simultaneously communicate one by one with the annular groove of inwall, and there is seal groove the both sides of each annular groove, totally 6；Medium position is total to
There are 14 circular holes and communicated with bushing inner chamber；Intersect intercommunication part, share 5 circular holes, inwall has 5 annular grooves, groove with
Circular hole is intersected by the secret tunnel of inside to be communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610359731.4A CN107433289B (en) | 2016-05-27 | 2016-05-27 | Energy-efficient descaling header |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610359731.4A CN107433289B (en) | 2016-05-27 | 2016-05-27 | Energy-efficient descaling header |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107433289A true CN107433289A (en) | 2017-12-05 |
| CN107433289B CN107433289B (en) | 2019-05-24 |
Family
ID=60453113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610359731.4A Active CN107433289B (en) | 2016-05-27 | 2016-05-27 | Energy-efficient descaling header |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107433289B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH089057B2 (en) * | 1991-08-26 | 1996-01-31 | 新日本製鐵株式会社 | Descaling injector |
| DE19805377A1 (en) * | 1998-02-11 | 1999-08-12 | Schloemann Siemag Ag | Spray beam for hydraulic de-scaling plant |
| CN101954387A (en) * | 2009-07-16 | 2011-01-26 | 宝钢集团新疆八一钢铁有限公司 | Self-enclosed coaxial equal-angle alternate rotary descaling header device |
| CN202290807U (en) * | 2011-09-30 | 2012-07-04 | 鞍钢股份有限公司 | An adjustable high pressure water descaling device |
| CN103861880A (en) * | 2014-03-21 | 2014-06-18 | 福建德兴节能科技有限公司 | High-efficiency dephosphorization method and high-efficiency dephosphorization device |
| CN204892574U (en) * | 2015-09-02 | 2015-12-23 | 山东钢铁集团日照有限公司 | Equipment is descaled to hot rolling water under high pressure |
-
2016
- 2016-05-27 CN CN201610359731.4A patent/CN107433289B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH089057B2 (en) * | 1991-08-26 | 1996-01-31 | 新日本製鐵株式会社 | Descaling injector |
| DE19805377A1 (en) * | 1998-02-11 | 1999-08-12 | Schloemann Siemag Ag | Spray beam for hydraulic de-scaling plant |
| CN101954387A (en) * | 2009-07-16 | 2011-01-26 | 宝钢集团新疆八一钢铁有限公司 | Self-enclosed coaxial equal-angle alternate rotary descaling header device |
| CN202290807U (en) * | 2011-09-30 | 2012-07-04 | 鞍钢股份有限公司 | An adjustable high pressure water descaling device |
| CN103861880A (en) * | 2014-03-21 | 2014-06-18 | 福建德兴节能科技有限公司 | High-efficiency dephosphorization method and high-efficiency dephosphorization device |
| CN204892574U (en) * | 2015-09-02 | 2015-12-23 | 山东钢铁集团日照有限公司 | Equipment is descaled to hot rolling water under high pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107433289B (en) | 2019-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107311116B (en) | Ozone generator and its ozone generation and concentration control method | |
| CN203293026U (en) | Filter water tank of large grinding machine | |
| CN201186288Y (en) | Complex cavity water cooling reducing roller | |
| CN202880931U (en) | Automatic water taking and pollution removing device and system using sewage or surface water cold-heat source | |
| CN202290807U (en) | An adjustable high pressure water descaling device | |
| CN203855441U (en) | Reverse osmosis sea water desalinization system adopting self-pressurization energy recycling high-pressure pump | |
| CN107433289A (en) | Energy-efficient descaling header | |
| CN201883120U (en) | Annealing cooling system | |
| CN107520263B (en) | Descaling header road is discharged width control device | |
| CN107524192B (en) | Method for integrating clean ring side-filtering water supply pump set and clean ring water supply pump set | |
| CN102221305B (en) | On-line back flushing device of panel-type heat exchanger and flushing method thereof | |
| CN203905918U (en) | Energy-saving water injection supercharging device | |
| CN216063512U (en) | Roll squeezer heat abstractor for cement manufacture | |
| CN205533133U (en) | Hydraulic pressure two pass oil recovery water pump | |
| CN102505397A (en) | Dyeing heat recovery equipment and process | |
| CN201399485Y (en) | Turbulent tube for high speed passing water cooler | |
| CN204503795U (en) | A kind of cooling recirculation system of cascade utilization hot-rolling water resource | |
| CN204747808U (en) | Incomplete water processing system of soldering turret | |
| CN204152896U (en) | A kind of tungsten alloy shaping extruder hydraulic oil cooling device | |
| CN104588419B (en) | A kind of cooling recirculation system and method for cascade utilization hot-rolling water resource | |
| CN203470495U (en) | Large-scale bar cooling equipment | |
| CN201096206Y (en) | High pressure water descaling jet valve core device | |
| CN202092510U (en) | Online backflushing device of panel heat exchanger | |
| CN205049005U (en) | Cooling tower economizer | |
| CN211471502U (en) | Cooling water centralized arrangement structure for quenching and cooling steel pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |