CN209098423U - Remained ammonia filter - Google Patents
Remained ammonia filter Download PDFInfo
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- CN209098423U CN209098423U CN201821828153.5U CN201821828153U CN209098423U CN 209098423 U CN209098423 U CN 209098423U CN 201821828153 U CN201821828153 U CN 201821828153U CN 209098423 U CN209098423 U CN 209098423U
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- pipe
- ammonium hydroxide
- general pipeline
- ceramic filter
- ammonia
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Abstract
The utility model discloses a kind of remained ammonia filters, including being connect with oil removing purification air-floating apparatus into ammonium hydroxide general pipeline, the first ceramic filter and the second ceramic filter are connected separately with into ammonium hydroxide general pipeline, first ceramic filter and the second ceramic filter pass through blowdown general pipeline and are connected to pollution discharge pond, and the first ceramic filter and the second ceramic filter filter general pipeline by ammonium hydroxide and be connected with ammonia still；Described to be provided with to form the return pipe with gate valve in ammonium hydroxide filtration cycle circuit between ammonium hydroxide general pipeline and ammonium hydroxide filtering general pipeline, ammonia still is by ammonium hydroxide delivery pipe after ammonia still process with ammonium hydroxide filtering general pipeline and the return pipe with gate valve is connected to form the second ammonium hydroxide filtration cycle circuit.The first ceramic filter and the second ceramic filter carry out oil removing oil strain to remained ammonia again in the utility model, remained ammonia after oil removing enters back into ammonia still and carries out ammonia still process, remained ammonia is filtered for multiple times in the present apparatus, substantially increases oil removal efficiency.
Description
Technical field
The utility model relates to coking industry ammonium hydroxide filter plant technical field, especially a kind of remained ammonia filter.
Background technique
Country is increasingly strict to coking wastewater index request, and 60% that remained ammonia accounts for about coal chemical enterprise waste water total amount is left
It is right.Ammonia steaming system is the processing indispensable link of remained ammonia, and the stabilization of operating index directly affects biochemical treatment system
The performance of efficiency.
The raw coke oven gas generated in process of coking, the partial ammonia water isolated after gas-liquid separator is after oil removing clearing machine
Remained ammonia carries out ammonia still process to ammonia steaming system, and oil removing clearing machine is air-flotation type purification system, and deoiling effect is poor.This technique is to subsequent
Work belt carrys out significant impact, causes ammonium hydroxide heat exchanger, the ammonia still of ammonia steaming system to be frequently occluded, ammonia still process effect is poor.Ammonia still process simultaneously
The rear tar in waste water, suspended matter exist with unstable particle, form greasy filth graininess, wherein 100 υ m of diameter >
Account for about 30%, 20-100 υ m accounts for 7%, it is difficult to by gravity and the floating separation of gas suspension, increase sewage treatment load, operation cost increases
It is high.
Utility model content
There is provided a kind of remained ammonia filters for the utility model technical issues that need to address, to solve at present to surplus
The problem of deoiling effect of remaining ammonium hydroxide is poor, increases sewage treatment load, increases operation cost, to reach remained ammonia high efficiency filter
Purpose.
In order to solve the above technical problems, technical solution adopted in the utility model is as follows.
Remained ammonia filter, including with oil removing purification air-floating apparatus connect for convey through oil removing purify air-floating apparatus it is net
After change remained ammonia into ammonium hydroxide general pipeline, be connected separately with into ammonium hydroxide general pipeline for being filtered oil removing operation to remained ammonia
The bottom waste stream outlet of first ceramic filter and the second ceramic filter, the first ceramic filter and the second ceramic filter is equal
Pollution discharge pond is connected to by blowdown general pipeline, and the top ammonium hydroxide filtering outlet of the first ceramic filter and the second ceramic filter is logical
Ammonium hydroxide filtering general pipeline is crossed to be connected with the ammonia still for carrying out ammonia still process operation to filtered remained ammonia；It is described total into ammonium hydroxide
It is provided with the return pipe with gate valve to form ammonium hydroxide filtration cycle circuit between pipe and ammonium hydroxide filtering general pipeline, ammonia still passes through steaming
Ammonium hydroxide delivery pipe is with ammonium hydroxide filtering general pipeline after ammonia and the return pipe with gate valve is connected to form the second ammonium hydroxide filtration cycle circuit.
Advanced optimize technical solution, it is described to be branched into and the ammonia that is opened up on the first ceramic filter side wall into ammonium hydroxide general pipeline
What water inlet was connected be connected into ammonia water pipe a and with the ammonium hydroxide import opened up on the second ceramic filter side wall into ammonium hydroxide
Pipe b；Ammonium hydroxide filtering general pipeline branch into the ammonium hydroxide screen pipe a being connected with the first ceramic filter top ammonium hydroxide filtering outlet and
The ammonium hydroxide screen pipe b being connected with the second ceramic filter top ammonium hydroxide filtering outlet；The blowdown general pipeline is branched into and first
The bottom blow-down pipe a and be connected with the outlet of the second ceramic filter bottom waste stream that the outlet of ceramic filter bottom waste stream is connected
Logical bottom blow-down pipe b.
Technical solution is advanced optimized, is provided with and communicated on the blowdown general pipeline and is steamed for being passed through low pressure into blowdown general pipeline
For vapour to prevent the steam vapour system of line clogging, steam vapour system includes that connection is arranged on bottom blow-down pipe a side wall
Low pressure steam pipe a, the low pressure steam pipe b that is arranged on bottom blow-down pipe b side wall of connection and with low pressure steam pipe a and low pressure
The low-pressure steam general pipeline that steam pipe b is connected, low-pressure steam general pipeline are connected with low-pressure steam generator.
Technical solution is advanced optimized, is provided at the top of first ceramic filter and the second ceramic filter useless
Liquid outlet, the top waste liquid outlet of the first ceramic filter are connected by top sewage pipe a with bottom blow-down pipe a, the second pottery
The top waste liquid outlet of porcelain filter is connected by top sewage pipe b with bottom blow-down pipe b.
Technical solution is advanced optimized, it is described to filter general pipeline, ammonia into ammonium hydroxide general pipeline, into ammonia water pipe a, into ammonia water pipe b, ammonium hydroxide
Water screen pipe a, ammonium hydroxide screen pipe b, blowdown general pipeline, bottom blow-down pipe a, bottom blow-down pipe b, low-pressure steam general pipeline, low-pressure steam
The gate valve a for control piper on-off is provided on pipe a, low pressure steam pipe b, top sewage pipe a and top sewage pipe b,
General pipeline, ammonium hydroxide screen pipe a, ammonium hydroxide screen pipe b, bottom blow-down pipe a, bottom blow-down are filtered into ammonia water pipe a, into ammonia water pipe b, ammonium hydroxide
It is provided on pipe b, low pressure steam pipe a, low pressure steam pipe b, top sewage pipe a and top sewage pipe b for in pipeline
The delivery pump that medium is conveyed；It is described into ammonia water pipe a, into ammonia water pipe b, ammonium hydroxide screen pipe a, ammonium hydroxide screen pipe b and low pressure
It is provided with the pressure detecting pipeline for detecting air pressure on pipeline in main steam range, is provided with gate valve b on pressure detecting pipeline.
Technical solution is advanced optimized, blow-down pipe a, the second ceramic filter are provided at the top of first ceramic filter
It is provided at the top of device on blow-down pipe b, blow-down pipe a and blow-down pipe b and is provided with angie type spring safety valve.
Due to using above technical scheme, technological progress acquired by the utility model is as follows.
The utility model process runs well, easy to operate, teletransmission control reduces operative employee's labor intensity, using removing
The first ceramic filter and the second ceramic filter after oil purification air-floating apparatus, into setting before ammonia still and company's operation is to residue
Ammonium hydroxide carries out oil removing oil strain again, and the remained ammonia after oil removing enters back into ammonia still and carries out ammonia still process, and into ammonium hydroxide general pipeline, ammonium hydroxide mistake
It filters and forms ammonium hydroxide filtration cycle circuit between general pipeline and return pipe with gate valve, ammonium hydroxide delivery pipe, ammonium hydroxide filtering are total after ammonia still process
Pipe, the return pipe with gate valve and into the second ammonium hydroxide filtration cycle circuit is formed between ammonium hydroxide general pipeline, enable the present apparatus right
Remained ammonia is filtered for multiple times, and oil removal efficiency is substantially increased, and enables filter oil removal efficiency to reach 80% or more, drop
Low ammonia still system pressure reduces replacement, rinses filler number, and distilled ammonia wastewater oil-containing reduces, and alleviates sewage treatment system
System load, reduces operating cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein: 1, the first ceramic filter；2, the second ceramic filter；3, into ammonium hydroxide general pipeline；4, into ammonia water pipe a；5, into
Ammonia water pipe b；6, bottom blow-down pipe a；7, top sewage pipe a, 8, blowdown general pipeline；9, blow-down pipe a；10, ammonium hydroxide filters general pipeline；11,
Ammonium hydroxide screen pipe a；12, ammonium hydroxide screen pipe b；13, bottom blow-down pipe b；14, top sewage pipe b；15, blow-down pipe b；16, low pressure is steamed
Vapour general pipeline；17, low pressure steam pipe a；18, low pressure steam pipe b；19, ammonium hydroxide delivery pipe after ammonia still process；20, ammonium hydroxide delivery pipe after ammonia still process
a；21, ammonium hydroxide delivery pipe b after ammonia still process；22, with the return pipe of gate valve；23, gate valve a；24, delivery pump；26, pressure detecting pipe
Road；27, angie type spring safety valve.
Specific embodiment
Below in conjunction with specific utility model, the present invention will be further described in detail.
A kind of remained ammonia filter, as shown in connection with fig. 1, including into ammonium hydroxide general pipeline 3, the first ceramic filter 1, second make pottery
Ammonium hydroxide conveys after porcelain filter 2, blowdown general pipeline 8, ammonium hydroxide filtering general pipeline 10, ammonia still, the return pipe 22 with gate valve and ammonia still process
Pipe 19.
Be provided with ceramic filter membrane in first ceramic filter 1 and the second ceramic filter 2, for remained ammonia into
Row filtering oil removing operation.The sidewall bottom of first ceramic filter 1 and the second ceramic filter 2 is installed with ammonium hydroxide import,
The side wall upper part of first ceramic filter 1 and the second ceramic filter 2 is installed with ammonium hydroxide filtering outlet, the first ceramic filter
The top and the first ceramic filter 1 of device 1 and the second ceramic filter 2 and the bottom of the second ceramic filter 2 offer
Waste liquid outlet.The top of first ceramic filter 1 is provided with blow-down pipe a9, and the top of the second ceramic filter 2, which is provided with, puts
Blank pipe b15, blow-down pipe a9 and blow-down pipe b15 are used to discharge to volatilize in the first ceramic filter 1 and the second ceramic filter 2
Gas is provided with angie type spring safety valve 27 on blow-down pipe a9 and blow-down pipe b15 with the pressure inside reduction.Operating personnel
Air pressure inspection periodically is carried out to angie type spring safety valve in the utility model, if the first ceramic filter and the second ceramic filter
Interior air pressure is excessive, and directly gas can be discharged by blow-down pipe a and blow-down pipe b.
It is connect into one end of ammonium hydroxide general pipeline 3 with oil removing purification air-floating apparatus, the other end into ammonium hydroxide general pipeline 3 is connected separately with
First ceramic filter 1 and the second ceramic filter 2, for conveying the remained ammonia after oil removing purification air-floating apparatus purification.Into
Ammonium hydroxide general pipeline 3 branches into ammonia water pipe a4 and into ammonia water pipe b5, into 1 side wall of ammonia water pipe a4 and the first ceramic filter on open up
Ammonium hydroxide import is connected, into ammonia water pipe b5 and 2 side wall of the second ceramic filter on the ammonium hydroxide import that opens up be connected.
Blowdown general pipeline 8 is connected to the bottom waste stream outlet and first of the first ceramic filter 1 and the second ceramic filter 2
The top waste liquid outlet of ceramic filter 1 and the second ceramic filter 2, the other end of blowdown general pipeline 8 are connected to pollution discharge pond, are used for
First ceramic filter 1 and the filtered waste liquid of the second ceramic filter 2 are conveyed.Blowdown general pipeline 8 branches into bottom row
Dirty pipe a6 and bottom blow-down pipe b13, bottom blow-down pipe a6 are connected with the outlet of 1 bottom waste stream of the first ceramic filter, bottom row
Dirty pipe b13 is connected with the outlet of 2 bottom waste stream of the second ceramic filter.The top waste liquid outlet of first ceramic filter 1 simultaneously
It is connected by top sewage pipe a7 with bottom blow-down pipe a6, the top waste liquid outlet of the second ceramic filter 2 is arranged by top
Dirty pipe b14 is connected with bottom blow-down pipe b13, therefore bottom blow-down pipe a6, bottom blow-down pipe b13, top sewage pipe a7 and top
Portion sewage pipe b14 can be connected with blowdown general pipeline 8.
The top ammonium hydroxide filtering outlet of first ceramic filter 1 and the second ceramic filter 2 passes through ammonium hydroxide and filters general pipeline
10 are connected with ammonia still, and ammonia still is used to carry out ammonia still process operation to filtered remained ammonia.Ammonium hydroxide filters 10 branch of general pipeline
For ammonium hydroxide screen pipe a11 and ammonium hydroxide screen pipe b12, ammonium hydroxide screen pipe a11 and 1 top ammonium hydroxide filtering outlet of the first ceramic filter
It is connected, ammonium hydroxide screen pipe b12 is connected with 2 top ammonium hydroxide filtering outlet of the second ceramic filter.
With gate valve return pipe 22 setting into ammonium hydroxide general pipeline 3 and ammonium hydroxide filtering general pipeline 10 between, into ammonium hydroxide general pipeline 3,
Ammonium hydroxide filters general pipeline 10 and forms ammonium hydroxide filtration cycle circuit with the return pipe 22 with gate valve, and ammonium hydroxide filters general pipeline 10 can be by mistake
Ammonium hydroxide after filter is flowed back into the first ceramic filter 1 and the filtering of the second ceramic filter 2 is again introduced into ammonium hydroxide general pipeline 3, is made
Obtaining the present apparatus can be realized effective filtering to ammonium hydroxide.
Ammonium hydroxide delivery pipe 19 is connected with ammonium hydroxide filtering general pipeline 10 with the return pipe 22 with gate valve after ammonia still passes through ammonia still process
It is logical, the second ammonium hydroxide filtration cycle circuit is formed, so that the remained ammonia by ammonia still ammonia still process operation can also be returned to first
Secondary filter is carried out in ceramic filter 1 and the second ceramic filter 2, or even is filtered for multiple times.Ammonium hydroxide delivery pipe 19 is divided after ammonia still process
Ammonium hydroxide delivery pipe b21, ammonium hydroxide delivery pipe a20 and ammonium hydroxide screen pipe after ammonia still process after ammonium hydroxide delivery pipe a20 and ammonia still process are set as after ammonia still process
A11 is connected, and ammonium hydroxide delivery pipe b21 is connected with ammonium hydroxide screen pipe b12 after ammonia still process.
The utility model is also provided with and communicated with steam vapour system on blowdown general pipeline 8, for being passed through into blowdown general pipeline 8
Low-pressure steam is to prevent line clogging.Steam vapour system includes that low pressure steam pipe a17, low pressure steam pipe b18, low-pressure steam are total
Pipe 16 and low-pressure steam generator.Low pressure steam pipe a17 connection is arranged on bottom blow-down pipe a6 side wall, low pressure steam pipe b18
Connection be arranged on bottom blow-down pipe b13 side wall, low-pressure steam general pipeline 16 with low pressure steam pipe a17 and low pressure steam pipe b18
It is connected, low-pressure steam generator is connected in one end of low-pressure steam general pipeline 16, and low-pressure steam generator is subtracted with boiler
The steam generator that pressure steam or host bled steam are used as heat source for low-pressure system.
The utility model filters general pipeline 10, ammonium hydroxide screen pipe into ammonium hydroxide general pipeline 3, into ammonia water pipe a4, into ammonia water pipe b5, ammonium hydroxide
A11, ammonium hydroxide screen pipe b12, blowdown general pipeline 8, bottom blow-down pipe a6, bottom blow-down pipe b13, low-pressure steam general pipeline 16, low pressure are steamed
It is provided on steam pipe a17, low pressure steam pipe b18, top sewage pipe a7 and top sewage pipe b14 for control piper on-off
Gate valve a23.General pipeline 10, ammonium hydroxide screen pipe a11, ammonium hydroxide screen pipe b12, bottom are filtered into ammonia water pipe a4, into ammonia water pipe b5, ammonium hydroxide
Portion sewage pipe a6, bottom blow-down pipe b13, low pressure steam pipe a17, low pressure steam pipe b18, top sewage pipe a7 and top blowdown
Delivery pump 24 is provided on pipe b14, delivery pump 24 is for conveying pipeline internal medium；Into ammonia water pipe a4, into ammonia water pipe
Pressure detecting pipeline 26, pressure are provided on b5, ammonium hydroxide screen pipe a11, ammonium hydroxide screen pipe b12 and low-pressure steam general pipeline 16
Detection pipeline 26 is provided with gate valve b, so that operating personnel is on pipeline for detecting air pressure on pipeline on pressure detecting pipeline 26
Pressure detecting it is very convenient.Operating personnel periodically needs the pressure condition of Vibration Condition and pressure detecting pipeline to delivery pump
It is checked.
The actual job process of the utility model is as follows.
By oil removing purification air-floating apparatus treated remained ammonia by having respectively entered the first ceramic mistake into ammonium hydroxide general pipeline 3
Operation is filtered in filter 1 and the second ceramic filter 2；Filtered remained ammonia is flowed into ammonium hydroxide filtering general pipeline 10,
The pipeline of the return pipe 22 with gate valve is opened at this time, so that a part of filtered remained ammonia is not before entering ammonia still
Flow back into the first ceramic filter 1 again and the second ceramic filter 2 be for re-filtering, then by ammonium hydroxide filter general pipeline 10 into
Enter to ammonia still and carry out ammonia still process operation, the filtered remained ammonia of another part enters directly into ammonia still and carries out ammonia still process operation；
Until the remained ammonia in the first ceramic filter 1 and the second ceramic filter 2 is all discharged, ammonia still ammonia still process is post-job
Ammonium hydroxide delivery pipe 19 enters in ammonium hydroxide filtering general pipeline 10 after remained ammonia passes through ammonia still process, then passes through the return pipe 22 for having gate valve
It flows back into ammonium hydroxide general pipeline 3, is finally filtered operation again by the first ceramic filter 1 and the second ceramic filter 2.
The setting of the utility model steam vapour system enables the utility model in sewage effluent by low-pressure steam
It is passed into the first ceramic filter 1 and the second ceramic filter 2, to the first ceramic filter 1 and the second ceramic filter 2
Inside carries out back flush, and the waste liquid after flushing can be discharged by top sewage pipe, so that without opening 1 He of the first ceramic filter
It is cleaned inside second ceramic filter 2, greatly reduces the labor intensity of operating personnel.
Claims (6)
1. remained ammonia filter, it is characterised in that: including connecting with oil removing purification air-floating apparatus for conveying through except oil purification
After air-floating apparatus purification remained ammonia into ammonium hydroxide general pipeline (3), into ammonium hydroxide general pipeline (3) be connected separately with for remained ammonia into
The first ceramic filter (1) and the second ceramic filter (2) of row filtering oil removing operation, the first ceramic filter (1) and second
The bottom waste stream outlet of ceramic filter (2) is connected to pollution discharge pond by blowdown general pipeline (8), the first ceramic filter (1) and
The top ammonium hydroxide filtering outlet of second ceramic filter (2) is by ammonium hydroxide filtering general pipeline (10) and for filtered residue
The ammonia still that ammonium hydroxide carries out ammonia still process operation is connected；It is described to be provided between ammonium hydroxide general pipeline (3) and ammonium hydroxide filtering general pipeline (10)
The return pipe (22) with gate valve in ammonium hydroxide filtration cycle circuit is formed, ammonia still passes through ammonium hydroxide delivery pipe (19) and ammonia after ammonia still process
Water filtering general pipeline (10) is connected to form the second ammonium hydroxide filtration cycle circuit with the return pipe (22) with gate valve.
2. remained ammonia filter according to claim 1, it is characterised in that: it is described into ammonium hydroxide general pipeline (3) branch into
The ammonium hydroxide import opened up on first ceramic filter (1) side wall be connected into ammonia water pipe a(4) and with the second ceramic filter
(2) the ammonium hydroxide import opened up on side wall be connected into ammonia water pipe b(5)；Ammonium hydroxide filtering general pipeline (10) branches into and the first ceramics
The ammonium hydroxide screen pipe a(11 that filter (1) top ammonium hydroxide filtering outlet is connected) and with the second ceramic filter (2) top ammonia
The ammonium hydroxide screen pipe b(12 that water filtering outlet is connected)；The blowdown general pipeline (8) branches into and the first ceramic filter (1) bottom
The bottom blow-down pipe a(6 that portion's waste liquid outlet is connected) and with the second ceramic filter (2) bottom waste stream export the bottom that is connected
Portion sewage pipe b(13).
3. remained ammonia filter according to claim 2, it is characterised in that: be connected to setting on the blowdown general pipeline (8)
Have for being passed through low-pressure steam into blowdown general pipeline (8) to prevent the steam vapour system of line clogging, steam vapour system packet
Connection is included to be arranged in bottom blow-down pipe a(6) low pressure steam pipe a(17 on side wall), connection is arranged in bottom blow-down pipe b(13) side
Low pressure steam pipe b(18 on wall) and the low-pressure steam that is connected with low pressure steam pipe a(17) and low pressure steam pipe b(18)
General pipeline (16), low-pressure steam general pipeline (16) are connected with low-pressure steam generator.
4. remained ammonia filter according to claim 3, it is characterised in that: first ceramic filter (1) and
Waste liquid outlet is provided at the top of two ceramic filters (2), the top waste liquid outlet of the first ceramic filter (1) passes through top
Sewage pipe a(7) it is connected with bottom blow-down pipe a(6), the top waste liquid outlet of the second ceramic filter (2) passes through top blowdown
Pipe b(14) it is connected with bottom blow-down pipe b(13).
5. remained ammonia filter according to claim 4, it is characterised in that: it is described into ammonium hydroxide general pipeline (3), into ammonia water pipe
A(4), into ammonia water pipe b(5), ammonium hydroxide filtering general pipeline (10), ammonium hydroxide screen pipe a(11), ammonium hydroxide screen pipe b(12), blowdown general pipeline
(8), bottom blow-down pipe a(6), bottom blow-down pipe b(13), low-pressure steam general pipeline (16), low pressure steam pipe a(17), low-pressure steam
Pipe b(18), top sewage pipe a(7) and top sewage pipe b(14) on be provided with gate valve a for control piper on-off
(23), into ammonia water pipe a(4), into ammonia water pipe b(5), ammonium hydroxide filter general pipeline (10), ammonium hydroxide screen pipe a(11), ammonium hydroxide screen pipe b
(12), bottom blow-down pipe a(6), bottom blow-down pipe b(13), low pressure steam pipe a(17), low pressure steam pipe b(18), top blowdown
Pipe a(7) and top sewage pipe b(14) on be provided with delivery pump (24) for being conveyed to pipeline internal medium；It is described
Into ammonia water pipe a(4), into ammonia water pipe b(5), ammonium hydroxide screen pipe a(11), ammonium hydroxide screen pipe b(12) and low-pressure steam general pipeline (16)
On be provided with pressure detecting pipeline (26) for detecting air pressure on pipeline, pressure detecting pipeline is provided with gate valve b on (26).
6. remained ammonia filter according to claim 1, it is characterised in that: the top of first ceramic filter (1)
Portion is provided with blow-down pipe a(9), the second ceramic filter is provided with blow-down pipe b(15 at the top of (2)), blow-down pipe a(9) and put
Blank pipe b(15) on be provided with angie type spring safety valve (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821828153.5U CN209098423U (en) | 2018-11-07 | 2018-11-07 | Remained ammonia filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821828153.5U CN209098423U (en) | 2018-11-07 | 2018-11-07 | Remained ammonia filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209098423U true CN209098423U (en) | 2019-07-12 |
Family
ID=67158547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821828153.5U Active CN209098423U (en) | 2018-11-07 | 2018-11-07 | Remained ammonia filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209098423U (en) |
-
2018
- 2018-11-07 CN CN201821828153.5U patent/CN209098423U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 073000 victory road, Dingzhou, Hebei, Baoding Patentee after: Hebei Xuyang Energy Co., Ltd Address before: 073000 victory road, Dingzhou, Hebei, Baoding Patentee before: HEBEI RISUN COKING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |