CN205974225U - Deep dewatering equipment for sludge - Google Patents
Deep dewatering equipment for sludge Download PDFInfo
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- CN205974225U CN205974225U CN201620903165.4U CN201620903165U CN205974225U CN 205974225 U CN205974225 U CN 205974225U CN 201620903165 U CN201620903165 U CN 201620903165U CN 205974225 U CN205974225 U CN 205974225U
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- filter screen
- sludge
- deep dehydration
- predrainage
- dehydration device
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Abstract
The utility model discloses a deep dewatering equipment for sludge, including the filter screen dewatering device and the step deep dewatering machine that are connected, filter screen dewatering device's sludge outlet passes through the valve and is connected with step deep dewatering machine, filter screen dewatering device includes a toper section of thick bamboo and takes off water screen in advance, takes off water screen in advance and arrange in the toper section of thick bamboo to form filtration space, the side of a toper section of thick bamboo is equipped with the outlet, and the bottom of a toper section of thick bamboo is equipped with the sludge outlet. Its method is that the process filter screen dewatering device of mud material elder generation dewaters in advance, sends into step deep dewatering machine again and carries out degree of depth dehydration, and along with the distance between middle and upper filter screen of step deep dewatering machine and the lower filter net diminishes gradually, the mud material is in the compressed dehydration gradually of wedge drying zone intra -area. The utility model discloses a setting up two -stage dewatering device, but realizing the continuous operation of sludge dewatering process, simultaneously, its dewatering effect obviously improves, compares with current belt hydroextractor, and its filter -pressing mass dryness fraction can improve 20~50%.
Description
Technical field
This utility model is related to sludge dewatering technical field, particularly to a kind of deep dehydration device for sludge.
Background technology
" resource of mud " is using the various effective ingredient in mud, and exploitation has the functionalization product of added value.
Utilize in technology in various recycling sludges, wherein sludge dewatering is common technology, during sludge dewatering is crossed, dehydration equipment
Selection be sludge dewatering produce key.The existing device for dehydrating sladge waste producing main employing mainly has：Using filter pressing mode
Frame dehydration machine, van-type dewaterer, belt filter press, centrifugal dehydrator.
Wherein, the frame dehydration machine and van-type dewaterer strong adaptability to mud, simple structure, filter area is taken up an area greatly
Little, filter pressure is high, is easy to use resistant material manufacture, flexible operation, filter area can be adjusted according to production task, but its master
Shortcoming is wanted to be intermittently operated, high labor intensive, low production efficiency.
The advantage of centrifugal dehydrator is that equipment is little, efficiency high, separating power are strong, operating condition good (sealing, odorlessness), but
Its shortcoming is that manufacturing process has high demands, equipment is easy to wear, high to the pre-processing requirements of mud, so complex process, processing cost
Higher.
Belt filter press, due to the low advantage of continuous production, power consumption, is become sludge dewatering and is set using relatively large number of
Standby, but in actual applications, there is the open defect that filter pressing pressure is relatively low, filter pressing mass dryness fraction is low and now mud is taken off it is difficult to meet
The requirement of water.
Sludge dewatering treatment is to reduce a very important link of mud subsequent treatment cost.As mud is filled out in mud
Bury, agricultural process when, sludge dewatering can greatly reduce mud pile up place, save transportation in occur expense；As
If carry out burning disposal to mud, sludge dewatering can be greatly reduced combustion-supporting energy consumption or drying energy.
Therefore, how to ensure sufficiently high filter pressing pressure, longer time of filter pressing, thus improve mud mass dryness fraction, to mud
Recycling treatment have great importance.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of cost of investment relatively low, achievable dirt
The deep dehydration device for sludge that mud continuous prodution is processed.
The technical solution of the utility model is：A kind of deep dehydration device for sludge, including the filter screen dehydration device being connected
With step deep dehydration machine, the sludge outlet of filter screen dehydration device is connected with step deep dehydration machine by valve；Filter screen is dehydrated
Device includes conically shaped and predrainage filter screen, and predrainage filter screen is placed in conically shaped, is formed between predrainage filter screen and conically shaped
Filter space, the side of conically shaped is provided with discharge outlet, and the bottom of conically shaped is provided with sludge outlet.Wherein, filter screen dehydration device is real
The now predrainage to sludge material, step deep dehydration machine realizes to sludge material further deep dehydration.In general dirt
In sludge treatment technology, the moisture content of primary sludge material is about 95～98%, carries out through drainage screen dehydration device after predrainage, its
Moisture content drops to 90% about, then carries out after deep dehydration through step deep dehydration machine, can get the dirt compared with low-water-content
Mud material, when same class mud is processed, compared with existing belt type dewaterer, its filter pressing mass dryness fraction can improve 20～50%.
The tapered shape of described predrainage filter screen, and parallel be placed in conically shaped, the radial section of filter space is in circular.
Described predrainage filter screen is fixed in conically shaped by bracing frame, and predrainage filter screen top and conically shaped top are
Enclosed construction, stock pump is entered by the external mud of pipeline in the space in predrainage filter screen.
Wherein, the Main Function of filter space is to make to form a spatial transition between filter screen and conically shaped, for mud thing
Moisture in material passes through, and the source pressure that sludge material carries out predrainage enters the pump of stock pump in the external mud of predrainage filter screen
Mud, by the aperture of control valve, can be entered the pressure major part of stock pump applying by the valve opening at pressure and sludge outlet
(pressure range that pressure range enters stock pump to mud is related, generally 2-8kgf/ to be converted into the pressure to filter screen for the sludge material
cm2), sludge volume reduces and wherein moisture flow in filter space through filter screen, then discharges through discharge outlet.
Described step deep dehydration machine includes distributing device, upper crawler belt, lower crawler belt, upper filter screen and lower filter screen, inside upper filter screen
It is provided with crawler belt, inside lower filter screen, is provided with lower crawler belt, lower filter screen is horizontally disposed with, upper filter screen tilts above lower filter screen, along dirt
The conveying direction of mud, the distance between upper filter screen and lower filter screen taper into, and form wedge shape dehydration between upper filter screen and lower filter screen
Region；The length of upper filter screen is less than lower filter screen, and distributing device and upper filter screen are respectively positioned at the two ends of lower filter screen.Wherein, distributing device can
Using distributing device mutually isostructural with existing pressure filter.The operation principle of step deep dehydration machine is：Sludge material is with lower shoe
Band and lower filter screen move into wedge-shaped domain, sludge material pressure is gradually increased, and sludge volume constantly reduces；And
Corner dimension between upper filter screen and lower filter screen depends on the dewatering speed of sludge material, and dewatering speed is fast, and angle is bigger, this angle
Degree can set (being adjusted setting by angle adjusting mechanism) between 2～15 °, and the length of wedge-shaped is according to dirty
Designing, length can select to design between 2～6 meters the dewatering time of the species of mud material and sludge material.
As a kind of preferred version, between described upper filter screen and lower filter screen, be additionally provided with angle adjusting mechanism, upper filter screen and under
Angle between filter screen is 2～15 °.The concrete structure of angle adjusting mechanism and the angular adjustment machine employed in existing pressure filter
Structure structure is identical.
The length in described wedge-shaped domain is 2～6m.
As a kind of preferred version, described lower filter screen further respectively has at least one with the contact surface both sides edge of lower crawler belt
Sealing member, the middle part of lower filter screen is in groove structure, and the sludge material from distributing device is located in groove.Wherein, upper filter screen with
Space between filter screen is wedge-shaped domain, and the setting of sealing member makes to be formed groove in the middle part of lower filter screen, and groove is located at wedge shape and takes off
In aqua region, in the grooves, sludge material enters the wedge-shaped domain that a gap persistently diminishes to sludge material, due to two
Side is sealed and cannot be produced race mud phenomenon, and the sludge material in front of moving is more closely knit due to pressed, and sludge material is also no
Method is run forward, and sludge material is continuously moved along with the operation of lower crawler belt, the dirt in the domain of wedge-shaped
Mud material also cannot run backward, makes sludge material by filter pressing, i.e. so-called closed compression in a closed area.
Further, on the contact surface both sides edge of described lower filter screen and lower crawler belt, every side is provided with three sealing members, each close
Sealing is the O-ring seal being placed on lower crawler belt；On the same side, gap, upper filter screen are left between two adjacent sealing members
When sludge material being compressed with lower filter screen, sealing member stretches, and close proximity between two neighboring sealing member.I.e. sealing member
During installation, the distance between two neighboring sealing member, it is defined by sealing member maximum distortion rear seal close proximity, sealing member is high
Degree controls in 8-15mm.
A kind of deep dehydration method for sludge be can achieve by the said equipment, comprise the following steps：
(1) predrainage：After being mixed into adjusting material in sludge material, sludge material feeding filter screen dehydration device is carried out pre- de-
Water, the discharge outlet from conically shaped side for the moisture that predrainage produces is discharged, and the sludge material after predrainage is sent into by sludge outlet
In the distributing device of step deep dehydration machine；
(2) deep dehydration：Sludge material through predrainage is distributed to lower filter screen distributing device, and lower crawler belt drives lower filter
Net is moved, and sludge material is delivered to wedge-shaped domain, and meanwhile, upper crawler belt drives upper filter screen to be moved, with upper filter
The distance between net and lower filter screen taper into, and sludge material is gradually dehydrated by compression in the domain of wedge-shaped, the water of generation
Divide and ooze out from lower filter screen.
Wherein, in described step (2), during sludge material is gradually dehydrated by compression in the domain of wedge-shaped, when
When the speed that moisture oozes out is less than the speed that between upper filter screen and lower filter screen, distance diminishes, the pressure suffered by sludge material can be gradually
Increase, the speed that the moisture in sludge material oozes out also can be gradually increased, now the pressure suffered by sludge material assumes step and becomes
Change；When the speed that moisture oozes out is more than speed that between upper filter screen and lower filter screen, distance diminishes, then need to heighten upper filter screen and
The speed of service of lower filter screen, makes the speed that moisture oozes out be less than the speed that between upper filter screen and lower filter screen, distance diminishes.
This utility model, with respect to prior art, has the advantages that：
This deep dehydration device for sludge be carry out on the architecture basics of existing high voltage planar belt filter press improved, lead to
Cross setting two-stage dehydration device, realize sludge dehydration process can continuous operation, its device structure is simple, floor space is little,
Cost of investment is low；Meanwhile, after two-stage deep dehydration, its dehydrating effect is substantially improved sludge material, with existing belt
Dewaterer is compared, and its filter pressing mass dryness fraction can improve 20～50%.
This deep dehydration device for sludge is due to having higher filter pressing pressure, and achieves the dehydration of serialization two-stage, its energy
Consumption is low, and compared with existing belt type dewaterer, its power consumption can save 10～40%.
This deep dehydration device for sludge passes through to arrange sealing member in lower filter screen bottom, makes to be formed between lower filter screen and upper filter screen
Enclosed wedge-shaped domain, effectively overcomes existing pressure filter and easily produces the defect running the phenomenons such as mud, leakage mud, improve de-
Water effect, is also adapted to the processed of multiple types mud simultaneously, is conducive to the promotion and application of belt type dewaterer.
Brief description
Fig. 1 is the structural representation of this deep dehydration device for sludge.
Fig. 2 is that in embodiment 1, sludge material carries out the principle schematic of deep dehydration in the domain of wedge-shaped.
Fig. 3 is that in embodiment 2, sludge material carries out the principle schematic of deep dehydration in the domain of wedge-shaped.
Fig. 4 is the Section A-A view of Fig. 3.
Fig. 5 is the section B-B view of Fig. 3.
Above-mentioned each in figure, 1 is distributing device, and 2 is upper crawler belt, and 3 is angle adjusting mechanism, and 4 is upper filter screen, and 5 is lower filter screen, 6
For lower crawler belt, 7 is sealing member, and 8 is sludge material, and 9 is conically shaped, and 10 is predrainage filter screen, and 11 is bracing frame, and 12 is draining
Mouthful, 13 is sludge outlet, and 14 is valve, and 15 is the outlet of wedge-shaped domain.
Specific embodiment
With reference to embodiment, the utility model is described in further detail, but embodiment of the present utility model
Not limited to this.
Embodiment 1
A kind of deep dehydration device for sludge of the present embodiment, as shown in figure 1, include filter screen dehydration device and the step being connected
Deep dehydration machine, the sludge outlet of filter screen dehydration device is connected with step deep dehydration machine by valve；Filter screen dehydration device bag
Include conically shaped and predrainage filter screen, predrainage filter screen is placed in conically shaped, formed between predrainage filter screen and conically shaped and filter sky
Between, the side of conically shaped is provided with discharge outlet, and the bottom of conically shaped is provided with sludge outlet.Wherein, filter screen dehydration device is realized to dirt
The predrainage of mud material, step deep dehydration machine realizes to sludge material further deep dehydration.Shown by test, general
Sludge treatment technique in, the moisture content of primary sludge material is about 95～98%, carries out predrainage through drainage screen dehydration device
Afterwards, its moisture content drops to 90% about, then carries out after deep dehydration through step deep dehydration machine, can get compared with low-water-content
Sludge material, when same class mud is processed, compared with existing belt type dewaterer, its filter pressing mass dryness fraction can improve 20～
50%.
Wherein, the tapered shape of predrainage filter screen, and parallel be placed in conically shaped, the radial section of filter space is in annulus
Shape.Predrainage filter screen is fixed in conically shaped by bracing frame, and predrainage filter screen top and conically shaped top are enclosed construction,
Stock pump is entered by the external mud of pipeline in space in predrainage filter screen.The Main Function of filter space be make filter screen and conically shaped it
Between form a spatial transition, pass through for the moisture in sludge material, and sludge material carries out the source pressure of predrainage in pre-
The dehydration external mud of filter screen enters the valve opening at stock pump pump pressure and sludge outlet, by the aperture of control valve, can be by
The pressure that mud enters stock pump applying is largely converted into sludge material (pressure range and mud enters the pressure of stock pump to the pressure of filter screen
Power scope is related, generally 2-8kgf/cm2), sludge volume reduces and wherein moisture flow in filter space through filter screen, then warp
Discharge outlet is discharged.
As shown in Figure 1 or 2, step deep dehydration machine includes distributing device, upper crawler belt, lower crawler belt, upper filter screen and lower filter screen,
It is provided with crawler belt inside upper filter screen, inside lower filter screen, is provided with lower crawler belt, lower filter screen is horizontally disposed with, upper filter screen tilts located at lower filter screen
Top (as shown in Fig. 2 this heeling condition not shown in Fig. 1), along the conveying direction of mud, between upper filter screen and lower filter screen away from
From tapering into, between upper filter screen and lower filter screen, form wedge-shaped domain；The length of upper filter screen be less than lower filter screen, distributing device and
Upper filter screen is located at the two ends of lower filter screen respectively.Wherein, distributing device can be using the mutually isostructural distributing device with existing pressure filter.Step
The operation principle of deep dehydration machine is：Sludge material moves into wedge-shaped domain, mud with lower crawler belt and lower filter screen
Material pressure is gradually increased, and sludge volume constantly reduces；And the corner dimension between upper filter screen and lower filter screen depends on dirt
The dewatering speed of mud material, dewatering speed is fast, and angle is bigger, and this angle can set (by angular adjustment machine between 2～15 °
Structure is adjusted setting), the length of wedge-shaped is come according to the species of sludge material and the dewatering time of sludge material
Design, length can select to design between 2～6 meters.
Adjust for convenience, be additionally provided with angle adjusting mechanism between upper filter screen and lower filter screen, between upper filter screen and lower filter screen
Angle be 2～15 °.The concrete structure of angle adjusting mechanism and the angle adjusting mechanism structure phase employed in existing pressure filter
With.The length in wedge-shaped domain is 2～6m.
A kind of deep dehydration method for sludge be can achieve by the said equipment, comprise the following steps：
(1) predrainage：After being mixed into adjusting material in sludge material, sludge material feeding filter screen dehydration device is carried out pre- de-
Water, the discharge outlet from conically shaped side for the moisture that predrainage produces is discharged, and the sludge material after predrainage is sent into by sludge outlet
In the distributing device of step deep dehydration machine；
(2) deep dehydration：Sludge material through predrainage is distributed to lower filter screen distributing device, and lower crawler belt drives lower filter
Net is moved, and sludge material is delivered to wedge-shaped domain, and meanwhile, upper crawler belt drives upper filter screen to be moved, with upper filter
The distance between net and lower filter screen taper into, and sludge material is gradually dehydrated by compression in the domain of wedge-shaped, the water of generation
Divide and ooze out from lower filter screen；
Wherein, during sludge material is gradually dehydrated by compression in the domain of wedge-shaped, the speed oozed out when moisture
During the speed diminishing less than distance between upper filter screen and lower filter screen, the pressure suffered by sludge material can be gradually increased, sludge material
In the speed oozed out of moisture also can be gradually increased, now the pressure suffered by sludge material assumes step change；When moisture oozes out
Speed when being more than speed that between upper filter screen and lower filter screen, distance diminishes, then need to heighten the operation speed of upper filter screen and lower filter screen
Degree, makes the speed that moisture oozes out be less than the speed that between upper filter screen and lower filter screen, distance diminishes.
Embodiment 2
A kind of deep dehydration device for sludge of the present embodiment, compared with Example 1 relatively, can prevent race mud, leakage further
The phenomenons such as mud, the concrete difference in its structure is：
Lower filter screen further respectively has sealing member with the contact surface both sides edge of lower crawler belt, and the middle part of lower filter screen is in that groove is tied
Structure, the sludge material from distributing device is located in groove.Wherein, the space between upper filter screen and lower filter screen is wedge-shaped
Domain, the setting of sealing member makes to be formed groove in the middle part of lower filter screen, and groove is located in the domain of wedge-shaped, and sludge material is located at groove
In, sludge material enters the wedge-shaped domain that a gap persistently diminishes, and cannot be produced race mud because both sides seal existing
As, and move front sludge material more closely knit due to pressed, sludge material also cannot run forward, and sludge material with
The operation of lower crawler belt is continuously moved along, and the sludge material in the domain of wedge-shaped also cannot run backward, makes mud
Material is in a closed area by filter pressing, i.e. so-called closed compression.
As shown in Figures 3 to 5, on the contact surface both sides edge of lower filter screen and lower crawler belt, every side is provided with three sealing members, respectively
Sealing member is the O-ring seal being placed on lower crawler belt；On the same side, leave gap (as Fig. 5 between two adjacent sealing members
Shown), when upper filter screen and lower filter screen are compressed to sludge material, sealing member stretches, and between two neighboring sealing member closely
Connect (as shown in Figure 4).When i.e. sealing member is installed, the distance between two neighboring sealing member, with close after sealing member maximum distortion
Sealing close proximity is defined, and seal height controls in 8-15mm.Region between upper filter screen and lower filter screen is wedge-shaped
Domain, the height of sealing member is 1.5～2 times of generally wedge-shaped domain outlet height.In the present embodiment, the height of each sealing member
Spend for 10mm, the height of wedge-shaped domain outlet is 5mm.
As described above, just can preferably realize this utility model, above-described embodiment is only preferable enforcement of the present utility model
Example, is not used for limiting practical range of the present utility model；I.e. all impartial changes made according to this utility model content and modification,
All covered by this utility model claim scope required for protection.
Claims (8)
1. a kind of deep dehydration device for sludge is it is characterised in that include filter screen dehydration device and the step deep dehydration being connected
Machine, the sludge outlet of filter screen dehydration device is connected with step deep dehydration machine by valve；Filter screen dehydration device includes conically shaped
With predrainage filter screen, predrainage filter screen is placed in conically shaped, forms filter space, conically shaped between predrainage filter screen and conically shaped
Side be provided with discharge outlet, the bottom of conically shaped is provided with sludge outlet.
2. according to claim 1 a kind of deep dehydration device for sludge it is characterised in that described predrainage filter screen is tapered
Shape, and parallel be placed in conically shaped, the radial section of filter space is in circular.
3. according to claim 1 a kind of deep dehydration device for sludge it is characterised in that described predrainage filter screen pass through support
Frame is fixed in conically shaped, and predrainage filter screen top and conically shaped top are enclosed construction, and the space in predrainage filter screen leads to
The external mud of piping enters stock pump.
4. according to claim 1 a kind of deep dehydration device for sludge it is characterised in that described step deep dehydration machine includes
Distributing device, upper crawler belt, lower crawler belt, upper filter screen and lower filter screen, are provided with crawler belt inside upper filter screen, be provided with lower shoe inside lower filter screen
Band, lower filter screen is horizontally disposed with, and upper filter screen tilts above lower filter screen, along the conveying direction of mud, upper filter screen and lower filter screen it
Between distance taper into, between upper filter screen and lower filter screen formed wedge-shaped domain；The length of upper filter screen is less than lower filter screen, cloth
Glassware and upper filter screen are respectively positioned at the two ends of lower filter screen.
5. according to claim 4 a kind of deep dehydration device for sludge it is characterised in that between described upper filter screen and lower filter screen
It is additionally provided with angle adjusting mechanism, the angle between upper filter screen and lower filter screen is 2～15 °.
6. according to claim 4 a kind of deep dehydration device for sludge it is characterised in that the length in described wedge-shaped domain
For 2～6m.
7. according to claim 4 a kind of deep dehydration device for sludge it is characterised in that the connecing of described lower filter screen and lower crawler belt
Contacting surface both sides edge further respectively has at least one sealing member, and the middle part of lower filter screen is in groove structure, from the mud of distributing device
Material is located in groove.
8. according to claim 7 a kind of deep dehydration device for sludge it is characterised in that the connecing of described lower filter screen and lower crawler belt
On the edge of contacting surface both sides, every side is provided with three sealing members, and each sealing member is the O-ring seal being placed on lower crawler belt；In the same side
On, leave gap between two adjacent sealing members, when upper filter screen and lower filter screen are compressed to sludge material, sealing member is stretched
Exhibition, and close proximity between two neighboring sealing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620903165.4U CN205974225U (en) | 2016-08-18 | 2016-08-18 | Deep dewatering equipment for sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620903165.4U CN205974225U (en) | 2016-08-18 | 2016-08-18 | Deep dewatering equipment for sludge |
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| Publication Number | Publication Date |
|---|---|
| CN205974225U true CN205974225U (en) | 2017-02-22 |
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ID=58032117
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620903165.4U Active CN205974225U (en) | 2016-08-18 | 2016-08-18 | Deep dewatering equipment for sludge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106116097A (en) * | 2016-08-18 | 2016-11-16 | 华南理工大学 | A kind of deep dehydration device for sludge and method |
| CN108129008A (en) * | 2018-02-08 | 2018-06-08 | 河南工程学院 | For the sludge treatment equipment of municipal sewage plant |
-
2016
- 2016-08-18 CN CN201620903165.4U patent/CN205974225U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106116097A (en) * | 2016-08-18 | 2016-11-16 | 华南理工大学 | A kind of deep dehydration device for sludge and method |
| CN106116097B (en) * | 2016-08-18 | 2023-08-22 | 华南理工大学 | Deep dehydration equipment and method for sludge |
| CN108129008A (en) * | 2018-02-08 | 2018-06-08 | 河南工程学院 | For the sludge treatment equipment of municipal sewage plant |
| CN108129008B (en) * | 2018-02-08 | 2023-05-26 | 河南工程学院 | Sludge treatment device for municipal sewage treatment plant |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200409 Address after: 510640 Tianhe District, Guangdong, No. five road, No. 381, Co-patentee after: Guangzhou South China University of Technology science and Technology Park Co., Ltd. Patentee after: Zhu Xiaolin Address before: 510640 Tianhe District, Guangdong, No. five road, No. 381, Patentee before: SOUTH CHINA UNIVERSITY OF TECHNOLOGY |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200709 Address after: 309c, 3 / F, block 22, Shunlian Machinery City, No.18 Xingye 4th Road, Guanglong Industrial Park, Chihua community, Chencun Town, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong baofujia Environmental Protection Technology Co., Ltd Address before: 510640 Tianhe District, Guangdong, No. five road, No. 381, Co-patentee before: Guangzhou South China University of Technology science and Technology Park Co.,Ltd. Patentee before: Zhu Xiaolin |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A deep sludge dewatering equipment Effective date of registration: 20210312 Granted publication date: 20170222 Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Daliang branch Pledgor: Guangdong baofujia Environmental Protection Technology Co., Ltd Registration number: Y2021980001659 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220127 Granted publication date: 20170222 Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Daliang branch Pledgor: Guangdong baofujia Environmental Protection Technology Co.,Ltd. Registration number: Y2021980001659 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sludge deep dewatering equipment Effective date of registration: 20220128 Granted publication date: 20170222 Pledgee: Guangdong Shunde Rural Commercial Bank Co.,Ltd. science and technology innovation sub branch Pledgor: Guangdong baofujia Environmental Protection Technology Co.,Ltd. Registration number: Y2022980001346 |