CN207468460U - Sludge freeze drying plant - Google Patents
Sludge freeze drying plant Download PDFInfo
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- CN207468460U CN207468460U CN201721309219.5U CN201721309219U CN207468460U CN 207468460 U CN207468460 U CN 207468460U CN 201721309219 U CN201721309219 U CN 201721309219U CN 207468460 U CN207468460 U CN 207468460U
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- sludge
- lyophilization
- water
- freeze drying
- drying plant
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Abstract
The utility model discloses a kind of sludge freeze drying plant, sludge including being used to implement pending mud freezing freezes component, and it is used to implement the sludge lyophilization component for freezing drying sludge, it further includes to complete cooling down, freeze the cooling assembly of component energy supply for the sludge, and the heat exchanger assembly of heat exchange and conduction is used to implement, generated heat is conducted to by the heat exchanger assembly in the sludge lyophilization component cooling assembly in the process of running and the lyophilization process to freeze sludge energizes.Cooling assembly generated heat in the process of running is utilized in the utility model, and the heating to device inside heating plate with holes is completed using water as medium so that entire heating process is without additionally consuming energy.The utility model using effect is good, energy-saving effect is excellent, has very high use and promotional value.
Description
Technical field
The utility model is related to a kind of sludge treatment devices, and in particular to it is dry that one kind can effectively reduce sludge vacuum freezing
The sludge freeze drying plant for the re-dry stage energy consumption that distils in dry technology, belongs to sludge treatment field.
Background technology
With the deep development of China's process of industrialization, various insecticide factories largely occur, and thereby produce and largely have
Malicious sewage.These sewage after disposing, it is a large amount of it is poisonous and harmful, be difficult to the noxious material degraded, as mercury, arsenic, phenol, lead and
Pesticide, pesticide intermediate etc. are all present in sludge, and not only toxicity is big but also foul smell is big for such sludge, according to traditional plate
The mode of frame press filtration it is handled can only press filtration to 70% or so.And such sludge belongs to high dangerous waste type, cost of disposal compared with
Height, therefore in order to reduce follow-up cost of disposal, it is necessary to decrement treatment is carried out to such sludge.Since such sludge belongs to temperature-sensitive
Property substance, will appear molten condition at 50 DEG C or so, so the traditional Treatment of Sludge mode such as heat drying, low temperature desiccation is not
It is applicable in.At present for the processing of such sludge, mainly using Freeze Drying Technique, this technology can not only be effectively complete
Into the drying and other treatment of sludge, and will not generate compared with niff, it is smaller to the harm of environment.
Freeze Drying Technique is also known as sublimating technologe, which can freeze material to eutectic point hereinafter, being placed in high vacuum
Container in, then moisture in material is made directly from solid ice distillation to be steam by heat supply.Compared with developed countries, China is existing
Stage seems lag and weakness about the fundamental research of Vacuum Freezing ＆ Drying Technology.The common sludge freezing in China at present is dry
Not only power consumption is larger for dry device, and drying time is long.
It will be seen that Freeze Drying Technique can be simply divided into two from the principle of above-mentioned Freeze Drying Technique
Process：1st, it is chilled to below eutectic point；2nd, distil re-dry.In practical application process, in order to make to freeze in rear product
Vapor constantly distils from ice crystal, must just provide enough heats needed for steam sublimation, therefore portion is just in the device
Need to configure necessary heating component.In a whole set of heating component other than relatively conventional heating plate, further include and be useful for pair
The component that heating agent is heated.Specifically, currently used heating medium for heating mode has electrical heating, steam heating, microwave heating
Deng, but the energy consumption of these mode of heatings is all bigger.By taking aqueous solvent as an example, under the conditions of 25 DEG C, every kilogram of water is frozen into ice, releases
Heat for 438 kilojoules, and every kilogram of ice is sublimed into the heat that vapor about absorbs 2800 kJ (kilojoule)s completely.It is possible thereby to it sees
Go out, the 1st stage less energy intensive of Vacuum Freezing ＆ Drying Technology, the energy consumption of the 2nd stage is more.Therefore, it distils in Freeze Drying Technique
The energy consumption in re-dry stage determines the efficiency of entire freezing dry process.
In conclusion distillation re-dry rank in sludge vacuum Freeze Drying Technique can be effectively reduced by how designing one kind
The sludge freeze drying plant of section energy consumption, just becomes those skilled in the art's urgent problem to be solved.
Invention content
In view of the prior art is there are drawbacks described above, the purpose of this utility model is that propose that one kind can effectively reduce sludge true
The sludge freeze drying plant for the re-dry stage energy consumption that distils in vacuum freecing-dry technology.
The purpose of this utility model will be achieved by the following technical programs：
A kind of sludge freeze drying plant, the sludge including being used to implement pending mud freezing freeze component, Yi Jiyong
Freeze the sludge lyophilization component of drying sludge in realization, further include to complete cooling down, be the sludge freezing group
The cooling assembly of part energy supply and the heat exchanger assembly for being used to implement heat exchange and conduction, the cooling assembly were being run
Generated heat is conducted in the sludge lyophilization component by the heat exchanger assembly and to freeze sludge in journey
Lyophilization process energy supply.
Preferably, the sludge freezing component includes sludge household freezer and is set in the sludge household freezer, is used for
Realize the broken sludge crushing device of sludge dispersion, the sludge freezer compartment floor be additionally provided with it is switchable, for completing to freeze
The flapper of sludge discharge.
Preferably, the sludge lyophilization component includes being fixedly installed on the lyophilization below the sludge household freezer
Case, when the flapper is opened, the sludge household freezer is connected with the inner space of both lyophilization casees, institute
The inside bottom fixed setting for stating lyophilization case is useful for the heating plate with holes of heating heating, the side wall of the sludge household freezer
On be further opened with convenient for sludge residue discharge sludge discharge hole.
Preferably, the cooling assembly includes refrigerator, coil pipe, cold-trap, cooling water pipeline and refrigerant line, described
Be provided with the condenser for refrigeration in refrigerator, the cooling water pipeline and the refrigerant line with the refrigerator phase
Connection, the cooling assembly further include the water pump and water tank for supplying water into the refrigerator, and the water pump is set to described
Between refrigerator and the water tank.
Preferably, the coil pipe be fixedly installed in the sludge household freezer and by the refrigerant line with it is described
Refrigerator is connected, be further fixedly arranged in the sludge household freezer match with the coil pipe, the collection for collecting condensed water
Water pond, the water-collecting tray are set to the lower section of the coil pipe and are connected by drainpipe with the water tank.
Preferably, the heat exchanger assembly includes heat exchanger, heat exchange water inlet pipe and heat exchange return pipe, and the heat is handed over
Parallel operation is fixedly installed on the lower section of the heating plate with holes, offers water inlet and water outlet, institute on the heat exchanger respectively
It states water inlet by the heat exchange water inlet pipe with the refrigerator to be connected, the water outlet is by the heat exchange return pipe
It is connected with the water tank.
Preferably, the condensation recycled for cooling water circulation is further included, the condensation is caught including vapor
Collect condensation bin, vapor air inlet is offered on the side wall of the vapor trapping condensation bin, by means of the vapor air inlet
Mouthful, the vapor trapping condensation bin is connected with the inner space of both lyophilization casees, the cold-trap fixed setting
It is connected in vapor trapping condensation bin and by the refrigerant line with the refrigerator.
Preferably, air outlet and defrost discharge outlet, describedization are further opened on the side wall of the vapor trapping condensation bin
White discharge outlet is connected with the water tank.
Preferably, it further includes for the vacuum subassembly to carrying out auxiliary heat supplying inside the lyophilization case, the vacuum
Component includes vacuum pump, blast pipe and discharge pipe, and the vacuum pump is connected by the blast pipe with the air outlet, described
The hot-air of vacuum pump discharge is transported to by the discharge pipe in the lyophilization case.
Preferably, the plate body surface of the heating plate with holes offers multiple hot wind holes for hot-air circulation, described
The aperture in hot wind hole is 500~700um.
The protrusion effect of the utility model is：Cooling assembly generated heat in the process of running is utilized in the utility model
It measures, and the heating to device inside heating plate with holes is completed using water as medium so that entire heating process is without additionally consume energy.
Such set-up mode has not only fully ensured that the utility model can be efficiently realized to freezing in sludge in use
The lyophilization of ice crystal, and compared with existing freeze drying plant, saved at least 40% electric energy.Except above-mentioned energy-saving effect
Outside, the utility model structure is apparent, and user can be obtained by assembling to existing equipment, transformation, equipment manufacturing costs
It is relatively low, it provides the foundation for its subsequent large-scale promotion use.
In general, the utility model using effect is good, energy-saving effect is excellent, has very high use and promotion price
Value.
Just attached drawing in conjunction with the embodiments below, is described in further detail specific embodiment of the present utility model, so that this
Utility model technical solution is more readily understood, grasps.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Wherein：11st, sludge household freezer；12nd, sludge crushing device；13rd, flapper；14th, water-collecting tray；21st, lyophilization case；
22nd, heating plate with holes；23rd, sludge discharge hole；31st, refrigerator；32nd, coil pipe；33rd, cold-trap；34th, cooling water pipeline；35th, refrigerant
Pipeline；36th, water pump；37th, drainpipe；38th, water tank；41st, heat exchanger；42nd, heat exchange water inlet pipe；43rd, heat exchange return pipe；
44th, water inlet；45th, water outlet；51st, vapor trapping condensation bin；52nd, vapor air inlet；53rd, air outlet；54th, defrost draining
Mouthful；61st, vacuum pump；62nd, blast pipe；63rd, discharge pipe.
Specific embodiment
It can effectively reduce and distil in sludge vacuum Freeze Drying Technique as shown in Figure 1, the utility model discloses one kind
The sludge freeze drying plant of re-dry stage energy consumption.
A kind of sludge freeze drying plant, the sludge including being used to implement pending mud freezing freeze component, Yi Jiyong
Freeze the sludge lyophilization component of drying sludge in realization, further include to complete cooling down, be the sludge freezing group
The cooling assembly of part energy supply and the heat exchanger assembly for being used to implement heat exchange and conduction, the cooling assembly were being run
Generated heat is conducted in the sludge lyophilization component by the heat exchanger assembly and to freeze sludge in journey
Lyophilization process energy supply.
The sludge freezing component includes sludge household freezer 11 and is set in the sludge household freezer 11, is used to implement
The broken sludge crushing device 12 of sludge dispersion, 11 bottom of sludge household freezer be additionally provided with it is switchable, for completing to freeze
The flapper 13 of sludge discharge.
The sludge lyophilization component includes the lyophilization case 21 for being fixedly installed on 11 lower section of sludge household freezer,
When the flapper 13 is opened, the sludge household freezer 11 is connected with the inner space of both lyophilization casees 21
Logical, the inside bottom fixed setting of the lyophilization case 21 is useful for the heating plate with holes 22 of heating heating, and the sludge is cold
Freeze on the side wall of case 11 sludge discharge hole 23 being further opened with convenient for sludge residue discharge.
In the present embodiment, the sludge crushing device 12 is fixedly installed on the top position of the sludge household freezer 11,
During practical use, the sludge crushing device 12 can be by sludge crushing into the particle that grain size is 3 ~ 4cm sizes.It is such
Mode of operation can further promote the refrigerating effect of sludge, shorten the cooling time of sludge.The flapper 13 passes through gas
Pressure energy is enough to be opened from centre to both sides, so that sludge can be successfully fallen into the lyophilization case 21.When having completed
After the sludge freezed falls into the lyophilization case 21, the flapper 13 is closed immediately.
The cooling assembly includes refrigerator 31, coil pipe 32, cold-trap 33, cooling water pipeline 34 and refrigerant line 35,
It is provided in the refrigerator 31 and is not shown in figure for the condenser of refrigeration, the cooling water pipeline 34 and the refrigerant pipe
Road 35 is connected with the refrigerator 31, and the cooling assembly further includes the water pump 36 for supplying water into the refrigerator 31
And water tank 38, the water pump 36 are set between the refrigerator 31 and the water tank 38.
The coil pipe 32 is fixedly installed in the sludge household freezer 11 and by the refrigerant line 35 and the system
Cooler 31 is connected, and is further fixedly arranged on and matches with the coil pipe 32, for collecting condensed water in the sludge household freezer 11
Water-collecting tray 14, the water-collecting tray 14 is set to the lower section of the coil pipe 32 and is connected by drainpipe 37 with the water tank 38
It is logical.Such structure setting is for being promoted the cycle performance of the present apparatus, promotes energy-saving effect.
The heat exchanger assembly includes heat exchanger 41, heat exchange water inlet pipe 42 and heat exchange return pipe 43, and the heat is handed over
Parallel operation 41 is fixedly installed on the lower section of the heating plate with holes 22, offers water inlet 44 on the heat exchanger 41 respectively and goes out
The mouth of a river 45, the water inlet 44 are connected by the heat exchange water inlet pipe 42 with the refrigerator 31, and the water outlet 45 is borrowed
The heat exchange return pipe 43 is helped to be connected with the water tank 38.
The sludge freeze drying plant further includes the condensation recycled for cooling water circulation, the condensation
Condensation bin 51 is trapped including vapor, vapor air inlet 52 is offered on the side wall of the vapor trapping condensation bin 51, borrows
Help the vapor air inlet 52, the vapor trapping condensation bin 51 and the inner space of both lyophilization casees 21
Be connected, the cold-trap 33 be fixedly installed in vapor trapping condensation bin 51 and by the refrigerant line 35 with
The refrigerator 31 is connected.
Air outlet 53 and defrost discharge outlet 54, the defrost are further opened on the side wall of the vapor trapping condensation bin 51
Discharge outlet 54 is connected with the water tank 38.
In addition to above structure, the sludge freeze drying plant further includes to carry out 21 inside of lyophilization case
The vacuum subassembly of auxiliary heat supplying, the vacuum subassembly include vacuum pump 61, blast pipe 62 and discharge pipe 63, and the vacuum pump 61 is borrowed
The blast pipe 62 is helped to be connected with the air outlet 53, the hot-air that the vacuum pump 61 is discharged is by 63 quilt of discharge pipe
It is delivered in the lyophilization case 21.
It needs to provide preferred embodiment herein, the plate body surface of the heating plate 22 with holes offers multiple for heat
The hot wind hole of air circulation, the aperture in the hot wind hole is 500 ~ 700um.Such aperture setting can either ensure that hot-air is suitable
It enters sharply in the lyophilization case 21, while can guarantee that mud granule will not be fallen along hot wind hole again, so as to further
Ensure the using effect of the utility model.
The complete operation of the utility model described briefly below：
Sludge enters in sludge household freezer 11, broken through sludge crushing device 12, becomes mud granule.Later on refrigeration
Device 31 and water pump 36, at this time the pipeline between the refrigerator 31 and cold-trap 33 remain off, water-collecting tray 14 collects disk
Condensed water caused by pipe 32, and pass through drainpipe 37 and water is immediately discharged in water tank 38.By 1-2 hours, sludge was complete
Freeze, then open flapper 13, freeze sludge and smoothly fall into lyophilization case 21.When the sludge for having completed to freeze is fallen into
After the lyophilization case 21, the flapper 13 is closed immediately.Be then turned off the refrigerator 31 and the coil pipe 32 it
Between pipeline, open the pipeline between the refrigerator 31 and the cold-trap 33, freeze to the cold-trap 33.Simultaneously at this time
Vacuum subassembly is opened, the lyophilization case 21 and vapor trapping condensation bin 51 are vacuumized, due to freezing in sludge
Ice crystal need enough heat that could distil, for the refrigerator 31 by condenser heat rejection, the heat of generation will be from water tank 38
The middle cooling water being evacuated to by water pump 36 in cooling assembly heats, and the cooling water heated flows into heat by heat exchange water inlet pipe 42
In exchanger 41, heating plate 22 with holes is heated, heat is provided to freeze the distillation of the ice crystal in sludge.What is cooled down is cold
Water is transmitted back to by heat exchange return pipe 43 in water tank 38.In the process, a large amount of ice crystal starts distillation as water steaming in sludge
Gas, a large amount of vapor enter in vapor trapping condensation bin 51, and are frosted by the cold-trap 33 trapping, and the water after defrost leads to
Defrost discharge outlet 54 to be crossed to be expelled in the water tank 38, the cooling water circulation in water tank 38 described in whole process utilizes, until
It is dry to complete.It should be noted that when the final moisture percentage in sewage sludge that whole process can be needed according to client adjusts lyophilization
Between, moisture percentage in sewage sludge can arbitrarily be adjusted between 10%~40%.
In addition, the hot-air that the vacuum pump 61 generates can be transported to the lyophilization case by the discharge pipe 63
In 21, to freeze the distillation auxiliary heat supplying of the ice crystal in sludge, the using effect of the utility model is thereby further ensured that.It is entire dry
After dry, sludge residue from sludge discharge hole 23 can be discharged, be then packaged subsequently to dispose.
The utility model is utilized cooling assembly generated heat in the process of running, and is completed pair using water as medium
The heating of device inside heating plate with holes so that entire heating process is without additionally consume energy.Such set-up mode, not only fully
Ensure that the utility model can efficiently realize the lyophilization to freezing ice crystal in sludge in use, and with it is existing
Freeze drying plant compare, saved at least 40% electric energy.In addition to above-mentioned energy-saving effect, the utility model structure is apparent, makes
User can be obtained by assembling to existing equipment, transformation, and equipment manufacturing costs are relatively low, be that its is subsequent extensive
It promotes the use of and provides the foundation.
In general, the utility model using effect is good, energy-saving effect is excellent, has very high use and promotion price
Value.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned exemplary embodiment, and
And in the case of the spirit and essential characteristics without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that by containing in the equivalent requirements of the claims is fallen
All changes in justice and range are embraced therein, and should not any reference numeral in claim be considered as limitation
Involved claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (10)
1. a kind of sludge freeze drying plant, including being used to implement the sludge freezing component of pending mud freezing and being used for
Realize the sludge lyophilization component for freezing drying sludge, it is characterised in that：It further includes to complete cooling down, be the dirt
The cooling assembly of mud freezing component energy supply and the heat exchanger assembly for being used to implement heat exchange and conduction, the cooling assembly
Generated heat is conducted in the sludge lyophilization component by the heat exchanger assembly and is in the process of running
Freeze the lyophilization process energy supply of sludge.
2. sludge freeze drying plant according to claim 1, it is characterised in that：The sludge freezing component includes sludge
Household freezer（11）And it is set to the sludge household freezer（11）It is interior, be used to implement the broken sludge crushing device of sludge dispersion
（12）, the sludge household freezer（11）Bottom is additionally provided with flapper that is switchable, freezing sludge discharge for completion
（13）.
3. sludge freeze drying plant according to claim 2, it is characterised in that：The sludge lyophilization component includes
It is fixedly installed on the sludge household freezer（11）The lyophilization case of lower section（21）, when the flapper（13）During unlatching, institute
State sludge household freezer（11）With the lyophilization case（21）The inner space of the two is connected, the lyophilization case（21）'s
Inside bottom fixed setting is useful for the heating plate with holes of heating heating（22）, the sludge household freezer（11）Side wall on also open
Equipped with the sludge discharge hole discharged convenient for sludge residue（23）.
4. sludge freeze drying plant according to claim 3, it is characterised in that：The cooling assembly includes refrigerator
（31）, coil pipe（32）, cold-trap（33）, cooling water pipeline（34）And refrigerant line（35）, the refrigerator（31）Interior setting
It is useful for the condenser of refrigeration（It is not shown in figure）, the cooling water pipeline（34）And the refrigerant line（35）With it is described
Refrigerator（31）It is connected, the cooling assembly is further included for the refrigerator（31）The water pump of interior water supply（36）And water tank
（38）, the water pump（36）It is set to the refrigerator（31）With the water tank（38）Between.
5. sludge freeze drying plant according to claim 4, it is characterised in that：The coil pipe（32）It is fixedly installed on institute
State sludge household freezer（11）It is interior and by the refrigerant line（35）With the refrigerator（31）It is connected, the sludge is cold
Freeze case（11）It is inside further fixedly arranged on and the coil pipe（32）Match, the water-collecting tray for collecting condensed water（14）, the collection
Water pond（14）It is set to the coil pipe（32）Lower section and by drainpipe（37）With the water tank（38）It is connected.
6. sludge freeze drying plant according to claim 5, it is characterised in that：The heat exchanger assembly includes heat exchange
Device（41）, heat exchange water inlet pipe（42）And heat exchange return pipe（43）, the heat exchanger（41）It is fixedly installed on described with holes
Heating plate（22）Lower section, the heat exchanger（41）It is upper to offer water inlet respectively（44）And water outlet（45）, the water inlet
Mouthful（44）By the heat exchange water inlet pipe（42）With the refrigerator（31）It is connected, the water outlet（45）By the heat
Exchange return pipe（43）With the water tank（38）It is connected.
7. sludge freeze drying plant according to claim 4, it is characterised in that：It further includes sharp again for cooling water circulation
Condensation, the condensation include vapor and trap condensation bin（51）, the vapor trapping condensation bin（51）'s
Vapor air inlet is offered on side wall（52）, by means of the vapor air inlet（52）, the vapor trapping condensation bin
（51）With the lyophilization case（21）The inner space of the two is connected, the cold-trap（33）It is fixedly installed on the vapor
Trap condensation bin（51）It is interior and by the refrigerant line（35）With the refrigerator（31）It is connected.
8. sludge freeze drying plant according to claim 7, it is characterised in that：The vapor traps condensation bin（51）
Side wall on be further opened with air outlet（53）And defrost discharge outlet（54）, the defrost discharge outlet（54）With the water tank（38）Phase
Connection.
9. sludge freeze drying plant according to claim 8, it is characterised in that：It further includes for the lyophilization
Case（21）Inside carries out the vacuum subassembly of auxiliary heat supplying, and the vacuum subassembly includes vacuum pump（61）, blast pipe（62）And outlet air
Pipe（63）, the vacuum pump（61）By the blast pipe（62）With the air outlet（53）It is connected, the vacuum pump（61）
The hot-air of discharge is by the discharge pipe（63）It is transported to the lyophilization case（21）It is interior.
10. sludge freeze drying plant according to claim 3, it is characterised in that：The heating plate with holes（22）Plate
Body surface face offers multiple hot wind holes for hot-air circulation, and the aperture in the hot wind hole is 500~700um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721309219.5U CN207468460U (en) | 2017-10-12 | 2017-10-12 | Sludge freeze drying plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721309219.5U CN207468460U (en) | 2017-10-12 | 2017-10-12 | Sludge freeze drying plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207468460U true CN207468460U (en) | 2018-06-08 |
Family
ID=62266731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721309219.5U Active CN207468460U (en) | 2017-10-12 | 2017-10-12 | Sludge freeze drying plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207468460U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003916A (en) * | 2021-02-09 | 2021-06-22 | 杭州国泰环保科技股份有限公司 | Nested formula sludge low temperature mummification prilling granulator |
| CN114526579A (en) * | 2022-01-21 | 2022-05-24 | 上海田枫实业有限公司 | Freeze dryer facilitating dehydration |
| CN116862271A (en) * | 2023-09-05 | 2023-10-10 | 北京大学 | Sludge reuse planning system based on smart city |
-
2017
- 2017-10-12 CN CN201721309219.5U patent/CN207468460U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003916A (en) * | 2021-02-09 | 2021-06-22 | 杭州国泰环保科技股份有限公司 | Nested formula sludge low temperature mummification prilling granulator |
| CN114526579A (en) * | 2022-01-21 | 2022-05-24 | 上海田枫实业有限公司 | Freeze dryer facilitating dehydration |
| CN116862271A (en) * | 2023-09-05 | 2023-10-10 | 北京大学 | Sludge reuse planning system based on smart city |
| CN116862271B (en) * | 2023-09-05 | 2023-11-03 | 北京大学 | Sludge reuse planning system based on smart city |
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Address after: No.150 Renai Road, Suzhou Industrial Park, Jiangsu Province Patentee after: Jiangsu lvwei Environmental Protection Technology Co.,Ltd. Address before: No.150 Renai Road, Suzhou Industrial Park, Jiangsu Province Patentee before: JIANGSU GREEN WAY ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |