CN206138878U - Adjusting device of tube bundle dust remover gas flow rate - Google Patents
Adjusting device of tube bundle dust remover gas flow rate Download PDFInfo
- Publication number
- CN206138878U CN206138878U CN201621176855.0U CN201621176855U CN206138878U CN 206138878 U CN206138878 U CN 206138878U CN 201621176855 U CN201621176855 U CN 201621176855U CN 206138878 U CN206138878 U CN 206138878U
- Authority
- CN
- China
- Prior art keywords
- cleaner unit
- bundled tube
- gas flow
- flow rate
- dividing plate
- 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.)
- Active
Links
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model provides an adjusting device of tube bundle dust remover gas flow rate, including electric butterfly valve and baffle, wherein: the baffle is the rectangular plate, and vertical setting is in the dusting layer top of tube bundle dust remover, two sides of baffle all with the casing of tube bundle dust remover links to each other, the baffle will adjustable district of dust remover and dust remover center are separated into to the region of tube bundle dust remover, electric butterfly valve with the top of baffle links to each other, electric butterfly valve can open or close the horizontal cross -section in the adjustable district of dust remover. The utility model discloses an adjusting device of tube bundle dust remover gas flow rate can improve the dust collection efficiency.
Description
Technical field
This utility model is related to the industry desulfuration field such as environmental protection, chemical industry, more particularly to a kind of bundled tube cleaner unit gas stream
The adjusting means of speed.
Background technology
GB3095-2012《Ambient air quality》, go into effect on January 1st, 2016, environmental protection equipment is proposed
High standards.
In certain gas flow rate range, bundled tube cleaner unit is carried to the separating power of grit with the increase of gas flow rate
Height, but when gas flow rate is too high, equipment resistance is quickly raised, and efficiency of dust collection declines；In addition, gas flow rate is too high can also make
Forming apparatus abrasion is increased, and power consumption is raised, and operation and maintenance expenses accordingly increase.When gas flow rate is too low, efficiency of dust collection declines quickly.
So, by the too high or too low normal operation for being all unfavorable for cleaner unit of the gas flow rate of cleaner unit section, therefore, to reach one
Fixed dust removing effects, it is necessary to control gas flow rate in an OK range：According to different cleaner unit blade constructions and arrangement form, gas
The design current velocity of body is typically selected between 8～16m/s.
Utility model content
The purpose of this utility model is to provide a kind of adjusting means of bundled tube cleaner unit gas flow rate, can be to tube bank
Gas flow rate in formula cleaner unit is adjusted, and makes gas flow rate all the time in the interval of design current velocity.
To achieve these goals, this utility model provides following technical scheme：
A kind of adjusting means of bundled tube cleaner unit gas flow rate, including electric butterfly valve and dividing plate, wherein：
The dividing plate be rectangular slab, be vertically arranged in the bundled tube cleaner unit except knoisphere top, the two of the dividing plate
Individual side is connected with the housing of the bundled tube cleaner unit, and the region of the bundled tube cleaner unit is separated into and is removed by the dividing plate
Dirt device is adjustable area and cleaner unit center；The electric butterfly valve is connected with the top of the dividing plate, and the electric butterfly valve can be opened
Open or close the horizontal cross-section in the adjustable area of the cleaner unit.
Further, it is described also including support frame beams in the adjusting means of above-mentioned bundled tube cleaner unit gas flow rate
Support frame beams are connected with the housing of the bundled tube cleaner unit and the periphery of the dividing plate；The dividing plate is vertically arranged in institute
State support frame beams and the bundled tube cleaner unit except between knoisphere.
Further, in the adjusting means of above-mentioned bundled tube cleaner unit gas flow rate, also including inspection platform, the inspection
Equating platform is arranged on the outside of the housing below the electric butterfly valve, for overhauling the adjusting means.
Further, it is described also including inspection manhole door in the adjusting means of above-mentioned bundled tube cleaner unit gas flow rate
Inspection manhole door is arranged on housing corresponding with cleaner unit center top, for adjustable in the bundled tube cleaner unit
Area arranges the adjusting means and personnel pass in and out the bundled tube cleaner unit.
Further, in the adjusting means of above-mentioned bundled tube cleaner unit gas flow rate, also including baffle plate, the baffle plate is
Cirque structure, the baffle plate is connected to the inner side of the housing, baffle plate position on the housing and the dividing plate
Height maintain an equal level.
Further, in the adjusting means of above-mentioned bundled tube cleaner unit gas flow rate, also include except knoisphere support beam, institute
The bottom for stating dividing plate is connected to described removing in knoisphere support beam.
Further, in the adjusting means of above-mentioned bundled tube cleaner unit gas flow rate, the electric butterfly valve is provided with many
Individual, the dividing plate is provided with multiple, and multiple dividing plates are divided into some groups, and the dividing plate is by the region of the bundled tube cleaner unit
It is separated into the adjustable area of the cleaner unit and the cleaner unit center.
Further, in the adjusting means of above-mentioned bundled tube cleaner unit gas flow rate, multiple electric butterfly valves are common
Cover the horizontal cross-section in the adjustable area of the cleaner unit.
Further, in the adjusting means of above-mentioned bundled tube cleaner unit gas flow rate, the dividing plate is carbon steel material,
The side surface of the dividing plate does scale anticorrosion process；The electric butterfly valve includes valve body and valve plate, and the valve body is stainless steel
Matter, the valve plate is carbon steel and lateral surface lining rubber slab material.
When production schedule adjustment or equipment fault, in the case that bundled tube cleaner unit is in sub-load working condition,
The gas flow of the cleaner unit reduces, and is reduced by the gas flow rate of the cleaner unit, and efficiency of dust collection declines substantially, now starts this
Adjusting means, closes electric butterfly valve valve plate, and the gas passage in corresponding cleaner unit is adjustable area is closed；All gas are via dedusting
Device center passes through, and the gas flow rate in cleaner unit center is improved, and gas flow rate rises to design current velocity, bundled tube cleaner unit
Functional rehabilitation.
Analysis understands that the adjusting means of bundled tube cleaner unit gas flow rate disclosed in this utility model can improve dedusting effect
Rate.The cleaner unit gas meets design requirement after gas device process, can qualified discharge, environmental protection benefits the society；This device
Made using wear-resisting, resistant material, rational in infrastructure, long service life, safeguard simple.This device has reliable, maintenance
Easy the features such as.
Description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality
New schematic description and description is used to explain this utility model, does not constitute to improper restriction of the present utility model.
Wherein：
Fig. 1 is the schematic front view of the embodiment of this utility model one；
Fig. 2 is the schematic top plan view of embodiment in Fig. 1；
Fig. 3 is cross-sectional schematic (baffle arrangement schematic diagram) at B-B in Fig. 1.
Description of reference numerals：1 electric butterfly valve；2 valve seats；3 baffle plates；4 inspection platforms；5 support frame beams；6 dividing plates；7 dedustings
Layer support beam；8 cleaner units are adjustable area；9 cleaner unit centers；10 housings；11 inspection manhole doors.
Specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments describing this utility model in detail.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
In description of the present utility model, term " longitudinal direction ", " horizontal ", " on ", D score, "front", "rear", "left", "right",
The orientation or position relationship of the instruction such as " vertical ", " level ", " top ", " bottom " be based on orientation shown in the drawings or position relationship,
Be for only for ease of description this utility model rather than require this utility model must with specific azimuth configuration and operation, therefore
It is not intended that to restriction of the present utility model.Term " connected " used in this utility model, " connection " should be interpreted broadly,
For example, it may be being fixedly connected, or being detachably connected；Can be joined directly together, it is also possible to indirect by intermediate member
It is connected, for the ordinary skill in the art, can as the case may be understands the concrete meaning of above-mentioned term.
As shown in Figure 1 to Figure 3, according to embodiment of the present utility model, there is provided a kind of bundled tube cleaner unit gas flow rate
Adjusting means, be arranged on bundled tube cleaner unit, be preferably provided at bundled tube cleaner unit flushing water layer top, it includes electronic
Butterfly valve 1 and dividing plate 6, wherein：Dividing plate 6 be rectangular slab, be vertically arranged in the cleaner unit except knoisphere top, two sides of dividing plate 6
Face is connected with the housing 10 of the cleaner unit, and dividing plate 6 is separated into the region of the cleaner unit in the adjustable area 8 of cleaner unit and cleaner unit
Heart district 9, corresponding with adjustable area's gas passage and center gas passage respectively, cleaner unit center 9 is referred to comprising the dedusting
The region of device centrage；Electric butterfly valve 1 is connected with the top of dividing plate 6, and electric butterfly valve 1 leads to for being turned on and off adjustable area's gas
Road, can cover the horizontal cross-section in the adjustable area 8 of cleaner unit.Specifically, electric butterfly valve 1 includes valve body, bar axle and is connected with bar axle
Valve plate, bar axle and valve plate are arranged in valve body, and when bar axle is rotated, bar axle drives valve plate to rotate, so that valve plate energy
Enough it is turned on and off the horizontal cross-section in the adjustable area 8 of cleaner unit.
When production schedule adjustment or equipment fault, in the case that bundled tube cleaner unit is in sub-load working condition,
The gas flow of the cleaner unit reduces, and is reduced by the gas flow rate of the cleaner unit, and efficiency of dust collection declines obvious.Now start this
Adjusting means, opens the valve plate of electric butterfly valve 1, and adjustable area's gas passage in corresponding cleaner unit is adjustable area 8 is closed, whole gas
Body passes through via cleaner unit center 9, and the gas flow rate in cleaner unit center 9 is improved, and gas flow rate rises to design current velocity,
The cleaner unit functional rehabilitation.
Preferably, also including the housing 10 of support frame beams 5, support frame beams (or claiming butterfly valve support beam) 5 and cleaner unit
Be connected with the top of dividing plate 6, dividing plate 6 be vertically arranged in support frame beams 5 and bundled tube cleaner unit except between knoisphere.In order to
It is easy to electric butterfly valve 1 to be turned on and off the horizontal cross-section in the adjustable area of cleaner unit, also including valve seat 2, valve seat 2 is arranged on support frame
On beam 5, for carrying electric butterfly valve 1, specifically, passage is provided with valve seat 2, it connects with the gas passage in the adjustable area 8 of cleaner unit
Logical, electric butterfly valve 1 is arranged in the passage of valve seat 2, by being turned on and off for the valve plate of electric butterfly valve 1 so that valve seat 2 it is logical
Road is connected or closed with the upper area of electric butterfly valve 1, so that on the gas passage in the adjustable area 8 of cleaner unit and electric butterfly valve 1
The connection or closing in square region, realizes the regulation of the gas flow rate of convection current removing dust device center 9.
Support frame beams 5 make scale anticorrosion process, and valve seat 2 is made using rustless steel.
Preferably, also including baffle plate 3, baffle plate 7 is cirque structure, and baffle plate 7 is connected to the inner side of housing 10, and baffle plate 7 exists
Position on housing 10 maintains an equal level with the height of dividing plate 6.It is preferred that baffle plate 3 is welded on the valve seat 2 of electric butterfly valve 1, that is, fix not
It is adjustable, for the space between seal valve seat 2 and housing 10, stop the space in the adjustable area 8 of cleaner unit being separated into by dividing plate 6
Interior gas leakage, baffle plate 3 is carbon steel material.
Preferably, also including inspection platform 4, inspection platform 4 is arranged on the outside of the housing 10 of the lower section of electric butterfly valve 1, uses
In the maintenance adjusting means.
Preferably, also including inspection manhole door 11, inspection manhole door 11 is arranged in the cleaner unit with bundled tube cleaner unit
On the corresponding housing 10 in the top of heart district 9, in practice it is located at the top of inspection platform 4, for setting in the adjustable area 8 of bundled tube cleaner unit
Put the adjusting means and personnel pass in and out the bundled tube cleaner unit.
Preferably, also include that, except knoisphere support beam 7, the bottom of dividing plate 6 is connected to this except in knoisphere support beam 7.Except knoisphere
Rack beams 7 are porous plate combination beam, arrange the tube bank outlet of the cleaner unit, ensure that the locus of the cleaner unit tube bank.
Preferably, electric butterfly valve 1 is provided with multiple, and dividing plate 6 is provided with multiple, and 6 points of multiple dividing plates are some groups, dividing plate 6
The region of the bundled tube cleaner unit is separated into into the adjustable area 8 of cleaner unit and cleaner unit center 9.Multiple electric butterfly valves 1 cover jointly
The horizontal cross-section in lid cleaner unit is adjustable area 8.Such as, electric butterfly valve 1 and dividing plate 6 are provided with two, and two dividing plates 6 are in bundled tube
Cleaner unit is symmetrical arranged along the centrage of the cleaner unit, and two dividing plates 6 successively separate the region of the cleaner unit from left to right
Into the adjustable area 8 of cleaner unit, cleaner unit center 9 and the adjustable area 8 of cleaner unit；Two electric butterfly valves 1 are removed in the cleaner unit along this
The centrage of dirt device is symmetrical arranged.
Preferably, two electric butterfly valves 1 are disposed in parallel in the homonymy on the top of a dividing plate 6, i.e. dividing plate 6 and connect an electricity
One end of dynamic butterfly valve 1, the other end of the electric butterfly valve 1 connects one end of another electric butterfly valve 1, another electric butterfly valve 1
The other end connects one end of baffle plate 3, and the other end of baffle plate 3 is connected with housing 10, and two electric butterfly valves 1 collectively cover cleaner unit can
Adjust the horizontal cross-section in area 8.Accordingly, the quantity of electric butterfly valve 1 is the three times of the quantity of dividing plate 6 or more, is arranged such and adds
The big cross-sectional area of the gas passage in the adjustable area 8 of cleaner unit, practical situation that can be in production selects the number of electric butterfly valve 1
Amount, improves the practicality of the adjusting means.
Preferably, dividing plate 6 is carbon steel material；The valve body of electric butterfly valve 1 is carbon steel material, and valve plate is that carbon steel and lateral surface are served as a contrast
Rubber slab material, and be furnished with the electrical header that is connected with bar axle and provide power to be opened and closed valve plate.Dividing plate 6 can be perpendicular in bundled tube cleaner unit
Directly it be arranged in parallel multiple, also one piece of new dividing plate 6 can be vertically arranged with original dividing plate 6 in the center of dividing plate 6, such as Fig. 3 institutes
Show, 3 pieces of dividing plates 6 on right side in Fig. 3：Including two parallel dividing plates 6, and 6 connected vertically one, the dividing plate parallel with two
Dividing plate 6, is divided into four passages, the upper end of each passage to be respectively provided with adjustable area's gas passage in the adjustable area 8 of cleaner unit
There is electric butterfly valve 1, be conducive to needing the valve plate quantity of opening according to gas flow accurate adjustment.8 electric butterfly valves are provided with Fig. 3
1, there are 4 electric butterfly valves 1 in left side, is symmetrically respectively in the left and right sides of horizontal direction, and also there are 4 electric butterfly valves 1 on right side.
This adjusting means is suitable in the case that equipment do not have oepration at full load, i.e., by the gas flow of bundled tube cleaner unit
During less than design load, it is ensured that through the efficiency of dust collection of bundled tube cleaner unit.
The installation method of this adjusting means：
General assembled arrangement, can arrange multigroup adjusting means according to design requirement, can be one in every group of adjusting means
Organize dividing plate one electric butterfly valve 1 of correspondence, can also be the multiple electric butterfly valves 1 of multigroup dividing plate correspondence.
Dividing plate 6 is arranged in except between knoisphere support beam 7 and support frame beams 5, the top (i.e. top) of dividing plate 6 and carriage
Set a roof beam in place 5 welding, following (i.e. bottom) and weld except knoisphere support beam 7, two stiles (i.e. side) with the housing of the cleaner unit
10 welding, carbon steel material.
Every group of adjusting means can independent operating, also can multigroup adjusting means run simultaneously；
The adjusting means is generally disposed at more than the tube bank pelvic outlet plane of bundled tube cleaner unit (or claiming except knoisphere) about
At 1000mm.
When by the gas flow rate of bundled tube cleaner unit in scope of design, dust removing effects are good, at the adjusting means
In stopped status, now electric butterfly valve 1 is opened, and valve plate is opened, and the gas passage in cleaner unit is adjustable area 8 is opened, at this moment, a part
Gas passes sequentially through the passage in the adjustable area 8 of cleaner unit, electric butterfly valve 1, flows upwards out；Another gas passes through cleaner unit center
9 passage is flowed upwards out；When by the gas flow rate of bundled tube cleaner unit, not in scope of design when, efficiency of dust collection is reduced,
The adjusting means is in open state, and now electric butterfly valve 1 is closed, and valve plate is opened, and the gas passage in cleaner unit is adjustable area 8 is closed
Close, at this moment, all gas are flowed upwards out by the passage of cleaner unit center 9.
When production schedule adjustment or equipment fault, in the case that equipment is in sub-load working condition, bundled tube is removed
The gas flow of dirt device reduces, and is reduced by the gas flow rate of the cleaner unit, and efficiency of dust collection declines obvious.Now start this regulation
Device, closes electric butterfly valve 1, and valve plate is opened, and the gas passage in corresponding cleaner unit is adjustable area 8 is closed；All gas via
Cleaner unit center 9 passes through, and the gas flow rate in cleaner unit center 9 is improved, and gas flow rate rises to design current velocity, bundled tube
Cleaner unit functional rehabilitation.
The adjusting means of the bundled tube cleaner unit gas flow rate provided using this utility model can at least realize following economy
Benefit：
1st, equipment can reach design requirement, it is ensured that dust removing effects；
2nd, create conditions for ultra-clean discharge.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this area
Technical staff for, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle within,
Any modification, equivalent substitution and improvements made etc., should be included within protection domain of the present utility model.
Claims (9)
1. a kind of adjusting means of bundled tube cleaner unit gas flow rate, it is characterised in that including electric butterfly valve and dividing plate, wherein：
The dividing plate be rectangular slab, be vertically arranged in the bundled tube cleaner unit except knoisphere top, two sides of the dividing plate
Face is connected with the housing of the bundled tube cleaner unit, and the region of the bundled tube cleaner unit is separated into cleaner unit by the dividing plate
Adjustable area and cleaner unit center；
The electric butterfly valve is connected with the top of the dividing plate, and it is adjustable that the electric butterfly valve can be turned on and off the cleaner unit
The horizontal cross-section in area.
2. the adjusting means of bundled tube cleaner unit gas flow rate according to claim 1, it is characterised in that also including support
Vierendeel girder, the support frame beams are connected with the housing of the bundled tube cleaner unit and the periphery of the dividing plate；
The dividing plate be vertically arranged in the support frame beams and the bundled tube cleaner unit except between knoisphere.
3. the adjusting means of bundled tube cleaner unit gas flow rate according to claim 1, it is characterised in that also including maintenance
Platform, the inspection platform is arranged on the outside of the housing below the electric butterfly valve, for overhauling the adjusting means.
4. the adjusting means of bundled tube cleaner unit gas flow rate according to claim 1, it is characterised in that also including maintenance
Manhole door, the inspection manhole door is arranged on housing corresponding with cleaner unit center top, in the tube bank
Formula cleaner unit is adjustable, and area arranges the adjusting means and personnel's turnover bundled tube cleaner unit.
5. the adjusting means of bundled tube cleaner unit gas flow rate according to claim 1, it is characterised in that also including gear
Plate, the baffle plate is cirque structure, and the baffle plate is connected to the inner side of the housing, baffle plate position on the housing
Put and maintain an equal level with the height of the dividing plate.
6. the adjusting means of bundled tube cleaner unit gas flow rate according to claim 5, it is characterised in that also including dedusting
Layer support beam, the bottom of the dividing plate is connected to described removing in knoisphere support beam.
7. the adjusting means of bundled tube cleaner unit gas flow rate according to claim 1, it is characterised in that the electronic butterfly
Valve is provided with multiple, and the dividing plate is provided with multiple, and multiple dividing plates are divided into some groups, and the dividing plate removes the bundled tube
The region of dirt device is separated into the adjustable area of the cleaner unit and the cleaner unit center.
8. the adjusting means of bundled tube cleaner unit gas flow rate according to claim 7, it is characterised in that multiple electricity
Dynamic butterfly valve collectively covers the horizontal cross-section in the adjustable area of the cleaner unit.
9. the adjusting means of bundled tube cleaner unit gas flow rate according to claim 1, it is characterised in that the dividing plate is
Carbon steel material, does scale anticorrosion and processes in the side surface of the dividing plate；The electric butterfly valve includes valve body and valve plate, the valve body
For stainless steel, the valve plate is carbon steel and lateral surface lining rubber slab material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621176855.0U CN206138878U (en) | 2016-11-02 | 2016-11-02 | Adjusting device of tube bundle dust remover gas flow rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621176855.0U CN206138878U (en) | 2016-11-02 | 2016-11-02 | Adjusting device of tube bundle dust remover gas flow rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206138878U true CN206138878U (en) | 2017-05-03 |
Family
ID=58624463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621176855.0U Active CN206138878U (en) | 2016-11-02 | 2016-11-02 | Adjusting device of tube bundle dust remover gas flow rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206138878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108837650A (en) * | 2018-06-24 | 2018-11-20 | 江苏兰丰环保科技有限公司 | A kind of automatic desulfurating dust-removing equipment |
-
2016
- 2016-11-02 CN CN201621176855.0U patent/CN206138878U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108837650A (en) * | 2018-06-24 | 2018-11-20 | 江苏兰丰环保科技有限公司 | A kind of automatic desulfurating dust-removing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100590434C (en) | Test apparatus of large-scaled environment simulation | |
| CN104015744B (en) | A kind of rail car equipment cabin centralized supply wind device and equipment compartment ventilating system | |
| CN209214385U (en) | A kind of sintering hot air circulation cloth fan housing | |
| CN206595560U (en) | The self-cleaning fast heat-dissipation switch cabinet of one kind ventilation | |
| CN206138878U (en) | Adjusting device of tube bundle dust remover gas flow rate | |
| CN106492547A (en) | Intelligent air purifier | |
| CN101444765B (en) | Air volume controller for cyclone dust collectors | |
| CN110102148A (en) | A kind of activated carbon adsorber | |
| CN107875744A (en) | A kind of sealed purification laminar flow hood | |
| CN102935320B (en) | Air current flow distribution on-line adjusting device and method of electrostatic-fabric integrated dust collector | |
| CN204110043U (en) | A kind of rail car equipment cabin centralized supply wind device and equipment compartment ventilation system | |
| CN204522588U (en) | Sack cleaner air intake flow field adjusting device | |
| CN206845954U (en) | Push-pull valve | |
| CN203239314U (en) | Vertical mounting sealing-pair zero-leakage drain valve for natural gas | |
| CN110608064A (en) | Ceiling type installation fan type air purification system for tunnel ventilation | |
| CN106179730B (en) | Except the device of magnetic foreign body | |
| RU2744333C1 (en) | Aluminum electrolyser gas extraction system | |
| CN201337962Y (en) | Input air control device of cyclone dust remover | |
| CN203663600U (en) | Novel exhaust filtering device | |
| CN102147332B (en) | Air duct system of reliability test bed for drive line of high-speed motor train unit | |
| CN112803283A (en) | Low-voltage power distribution device | |
| CN207878379U (en) | Snow melting vehicle and its incubator | |
| CN206653271U (en) | Water tank and plate glass grinder system | |
| CN207726782U (en) | A kind of pressure-bearing type device for electrochemical water preparation | |
| CN210773356U (en) | Scrap steel preheating sealing device and electric arc furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200110 Address after: 100070 Beijing Fengtai Auto Museum West Road, No. 8 Courtyard, 8th Floor, 801 Patentee after: BEIJING ZHTD ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 100070, room 602 (room 6), building 6, No. two, No. 188, South Fourth Ring Road, Fengtai District, Beijing Patentee before: Beijing ZHTD Technology Company |