CN113560182A - Continuous flour screening device - Google Patents

Continuous flour screening device Download PDF

Info

Publication number
CN113560182A
CN113560182A CN202110971157.9A CN202110971157A CN113560182A CN 113560182 A CN113560182 A CN 113560182A CN 202110971157 A CN202110971157 A CN 202110971157A CN 113560182 A CN113560182 A CN 113560182A
Authority
CN
China
Prior art keywords
fixedly connected
screening device
upper plate
lower plate
cylinder screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110971157.9A
Other languages
Chinese (zh)
Other versions
CN113560182B (en
Inventor
宋飞
宋孝海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Xuelian Flour Co ltd
Original Assignee
Anhui Xuelian Flour Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Xuelian Flour Co ltd filed Critical Anhui Xuelian Flour Co ltd
Priority to CN202110971157.9A priority Critical patent/CN113560182B/en
Publication of CN113560182A publication Critical patent/CN113560182A/en
Application granted granted Critical
Publication of CN113560182B publication Critical patent/CN113560182B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/06Selective separation of solid materials carried by, or dispersed in, gas currents by impingement against sieves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B11/00Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/08Cleaning arrangements

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention relates to the technical field of flour screening, in particular to a continuous flour screening device which comprises a rack and two concentric cylinder screen meshes, wherein more than four partition plates which are uniformly distributed at equal angles are fixedly connected between the two cylinder screen meshes, a plurality of channels with fan-shaped horizontal sections are formed between the cylinder screen meshes and the partition plates, a transmission assembly for driving the cylinder screen meshes to rotate is installed on the rack, a lower plate is rotatably and hermetically connected below the cylinder screen meshes, the upper plate and the lower plate are fixedly connected with the rack, two adjacent storage cavities are communicated through a connecting pipeline, a fan is installed inside the connecting pipeline, one end of the connecting pipeline is enabled to suck air and the other end of the connecting pipeline is enabled to blow air through the fan, a feed inlet is formed in the upper plate, and a discharge outlet is formed in the lower plate. This device simple structure, the avoiding sieve mesh that can be better is blockked up, and the in-process of screening can be dredged the sieve mesh to for continuous type screening, be favorable to improving screening efficiency.

Description

Continuous flour screening device
Technical Field
The invention relates to the technical field of flour screening, in particular to a continuous flour screening device.
Background
The fine flour can be screened out when the sieve pores are opened small, but the finer the sieve pores are, the more easily the wheat is blocked, the smaller the treatment amount is, and the larger the sieve pores are, the more difficult the fine flour is to be obtained.
Disclosure of Invention
The invention aims to solve the problem that sieve pores are easy to block when flour is sieved in the prior art, and provides a continuous flour sieving device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a continuous flour screening device comprises a frame and two concentric cylinder screens, wherein more than four partition plates which are uniformly distributed at equal angles are fixedly connected between the two cylinder screens, a plurality of channels with fan-shaped horizontal sections are formed between the cylinder screens and the partition plates, a transmission assembly for driving the cylinder screens to rotate is installed on the frame, an upper plate is rotatably and hermetically connected to the cylinder screens, a lower plate is rotatably and hermetically connected to the lower sides of the cylinder screens, the upper plate and the lower plate are fixedly connected with the frame, a plurality of storage cavities are formed among the upper plate, the cylinder screens, the partition plates and the lower plate, a plurality of connecting pipelines are fixedly connected to the upper part of the upper plate, the connecting pipelines are communicated with two adjacent storage cavities, fans are installed inside the connecting pipelines, one end of the connecting pipeline is sucked and one end of the connecting pipeline is blown by the fans, and a feed inlet is formed in the upper plate, the lower plate is provided with a discharge port.
The transmission assembly comprises a gear ring and a motor fixedly connected to the frame, the gear ring is fixedly connected to the outer circumferential wall of the drum screen positioned on the outer ring, and a gear meshed with the gear ring is fixedly connected to a power output shaft of the motor.
The transmission component comprises a gear ring and a motor fixedly connected on the frame, the gear ring is fixedly connected with the inner circumferential wall of the cylindrical sieve net positioned on the inner ring, and a gear meshed with the gear ring is fixedly connected on a power output shaft of the motor.
The gear ring is fixedly connected to the upper part of the circumferential wall of the cylinder screen.
The upper plate is the disc structure, the hypoplastron is middle hollow ring structure, upper plate below rigid coupling has the housing of gathering materials, the housing parcel of gathering materials a section of thick bamboo screen cloth reaches the hypoplastron, the housing of gathering materials installs the one-way admission valve of a plurality of, the bin outlet extends to the housing outside of gathering materials through arranging the material pipe.
And a negative pressure powder suction device is connected below the aggregate housing.
The upper end and the lower end of the cylinder screen are fixedly connected or integrally formed with annular convex plates, the upper plate and the lower plate are respectively provided with an annular groove matched with the annular convex plates, the annular convex plates are inserted in the annular grooves, balls are arranged between the end parts of the annular convex plates and the annular grooves, and/or sealing rings with O-shaped sections are arranged between the annular convex plates and the annular grooves.
Every two adjacent storage cavities are in one group, and each group of storage cavities corresponds to one connecting pipeline.
Every three is adjacent the storage chamber is a set of, and each group's storage chamber corresponds two connecting tube, two the same storage chamber of end intercommunication of giving vent to anger of connecting tube, two the terminal of breathing in of connecting tube respectively communicates a remaining storage chamber.
Every three is adjacent the storage chamber is a set of, and each group's storage chamber corresponds two connecting tube, two the end intercommunication the same storage chamber of breathing in of connecting tube, two the end of giving vent to anger of connecting tube respectively communicates a remaining storage chamber.
The invention provides a continuous flour screening device, which has the beneficial effects that: this device simple structure, the avoiding sieve mesh that can be better is blockked up, and the in-process of screening can be dredged the sieve mesh to for continuous type screening, be favorable to improving screening efficiency, and the discharge of impurity is more convenient.
Drawings
FIG. 1 is a schematic perspective exploded view of the present invention;
FIG. 2 is an axial half-section schematic view of the present invention;
FIG. 3 is a schematic view of the structure of the lower plate of the present invention;
FIG. 4 is a schematic view of a first connection of the connecting conduit to the storage chamber according to the present invention;
FIG. 5 is a schematic view of a second connection of the connecting conduit to the storage chamber according to the present invention;
fig. 6 is a schematic view of a split type arrangement structure of the drum screen.
In the figure: the device comprises an upper plate 1, a connecting pipeline 2, a feed inlet 3, a partition plate 4, a storage cavity 5, a lower plate 6, a drum screen 7, a gear ring 8, a fan 9, a gear 10, a motor 11, an annular convex plate 12, an annular groove 13, balls 14, an aggregate housing 15, a discharge outlet 16, a discharge pipe 17, a slot 18, a window 19 and a support frame 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a continuous flour screening device, which comprises a frame and two concentric drum screens 7, wherein more than four partition boards 4 which are uniformly distributed at equal angles are fixedly connected between the two drum screens 7, a plurality of channels with fan-shaped horizontal cross sections are formed between the drum screens 7 and the partition boards 4, a transmission assembly for driving the drum screens 7 to rotate is mounted on the frame, an upper plate 1 is rotatably and hermetically connected above the drum screens 7, a lower plate 6 is rotatably and hermetically connected below the drum screens 7, the upper plate 1 and the lower plate 6 are both fixedly connected with the frame, a plurality of storage cavities 5 are formed between the upper plate 1, the drum screens 7, the partition boards 4 and the lower plate 6, a plurality of connecting pipelines 2 are fixedly connected to the upper portion of the upper plate 1, the connecting pipelines 2 are communicated with the adjacent storage cavities 5 through the connecting pipelines 2, a fan 9 is mounted inside the connecting pipelines 2, one end of each connecting pipeline 2 is sucked by the fan 9, One end is blown, because fan 9 sets up between two storage chambeies, partial dust process fan can be carried to inspiratory one end, consequently this fan requires the leakproofness to be good, be favorable to improving fan life, as preferred, the fan setting is in connecting tube 2, the rotating electrical machines setting is outside at connecting tube 2, feed inlet 3 has been seted up to upper plate 1, hypoplastron 6 has seted up a bin outlet 16, feed inlet 3 can not set up the position in same storage chamber with bin outlet 16.
The device drives the cylinder screen 7 to rotate through the transmission component, flour in the storage cavities 5 is driven to do circular motion under the pushing action of the partition plate 4, the flour is quantitatively put into the rotating storage cavities 5 from the feed inlet 3, for convenience of description, referring to figure 4, the flour is put into the storage cavities 5 from the right side, then the flour rotates along with the storage cavities 5, the connecting pipeline 2 is communicated with the two adjacent storage cavities 5, one end of the connecting pipeline 2 sucks air and one end of the connecting pipeline blows air, the storage cavities 5 communicated with the connecting pipeline 2 are in a positive pressure state through the end of the connecting pipeline 2 which blows air, fine flour is carried through air flow to pass through the sieve pores of the cylinder screen 7, the storage cavities 5 communicated with the connecting pipeline 2 which sucks air are in a negative pressure state, outside air flow passes through the sieve pores of the cylinder screen 7 from the outside to enter the storage cavities 5, therefore, blocked sieve pores are opened, and the flour in the storage cavities 5 passes through the positive and negative pressure states for multiple times, the residual impurities with larger particles are retained in the storage cavity and finally discharged through the discharge opening 16, and then the discharged impurities move to the feed opening 3 again to be added with new flour to be screened.
As a first way of connecting the conduit 2 to the storage chamber, reference is made to fig. 4, in which the arrows represent the direction of movement of the air flow: every two adjacent storage chambers 5 are grouped, and each group of storage chambers 5 corresponds to one connecting pipe 2.
As a second way of connecting the conduit 2 to the storage chamber, reference is made to fig. 5, in which the arrows represent the direction of movement of the air flow: every three adjacent storage chamber 5 is a set of, and each group's storage chamber 5 corresponds two connecting tube 2, and the end of giving vent to anger of two connecting tube 2 communicates same storage chamber 5, and the end of breathing in of two connecting tube 2 respectively communicates remaining storage chamber 5, makes one of them storage chamber produce bigger malleation, and this kind of mode of setting is more suitable for the less flour of impurity.
As the second connection mode of connecting tube 2 and storage chamber, not shown in the figure, every three adjacent storage chamber 5 is a set of, and every group storage chamber 5 corresponds two connecting tube 2, and the end of breathing in of two connecting tube 2 communicates same storage chamber 5, and the end of giving vent to anger of two connecting tube 2 respectively communicates a remaining storage chamber 5, and this kind of setting up mode makes one of them storage chamber 5 produce great negative pressure state, relatively is fit for the flour that humidity is great, impurity is more.
Referring to fig. 6, the drum screen 7 includes two ring-shaped support frames 20, the two support frames 20 are fixed together by the partition plates 4, the support frames 20 are provided with slots 18 from top to bottom, a window 19 is arranged between every two partition plates 4 and is opened along the radial direction of the support frame 20, two concentric cylindrical screens with an integral structure are arranged, the cylindrical screens are inserted into the slots 18 to form the drum screen 7, or a plurality of arc-shaped plate-shaped screens are arranged, and one arc-shaped plate-shaped screen is inserted into the slot 18 at the position of each window 19, so that the structure is convenient to install and replace.
A first embodiment of the transmission assembly, with reference to fig. 1-3: the transmission component comprises a gear ring 8 and a motor 11 fixedly connected on the frame, the gear ring 8 is fixedly connected on the outer circumferential wall of the drum screen 7 positioned on the outer ring, a gear 10 meshed with the gear ring 8 is fixedly connected on a power output shaft of the motor 11, and the meshed gear is driven by the motor 11 to rotate so as to enable the drum screen 7 to move relative to the upper plate and the lower plate.
In a second embodiment of the transmission assembly, the transmission assembly includes a gear ring 8 and a motor 11 fixedly connected to the frame, the gear ring 8 is fixedly connected to the inner circumferential wall of the cylindrical screen 7 located at the inner ring, and a gear 10 engaged with the gear ring 8 is fixedly connected to a power output shaft of the motor 11.
Preferably, the gear ring 8 is fixedly connected with the upper part of the circumferential wall of the cylinder screen 7; the upper plate 1 is of a disc structure, the lower plate 6 is of a hollow circular structure, an aggregate housing 15 is fixedly connected below the upper plate 1, the aggregate housing 15 wraps the drum screen 7 and the lower plate 6, the aggregate housing 15 is provided with a plurality of one-way air inlet valves, external gas can conveniently enter the aggregate housing 15, and a discharge port 16 extends to the outside of the aggregate housing 15 through a discharge pipe 17; the negative pressure powder suction equipment is connected below the aggregate housing 15.
Avoid the meticulous flour of screening out to fly away in whole workshop through the cover 15 that gathers materials, inhale the flour that powder equipment collected the cover 15 inside that gathers materials through the negative pressure, make the cover 15 that gathers materials be the negative pressure state, be favorable to collecting the flour that flies away fast, avoid the flour to be inhaled again in the storage chamber 5.
The cylinder screen 7 is connected with the upper plate 1 and the lower plate 6 in a sealing and rotating mode, the upper end and the lower end of the cylinder screen 7 are fixedly connected or integrally formed with annular convex plates 12, annular grooves 13 matched with the annular convex plates 12 are formed in the upper plate 1 and the lower plate 6, the annular convex plates 12 are inserted in the annular grooves 13, balls 14 are arranged between the end portions of the annular convex plates 12 and the annular grooves 13, and/or sealing rings with O-shaped cross sections are arranged between the annular convex plates 12 and the annular grooves 13, the sealing performance is good, the rotating performance is good, the structure is simpler, and the manufacturing cost is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any technical solutions, concepts and designs obtained by equivalent substitutions or changes of the technical solutions and the inventive concepts of the present invention by those skilled in the art within the technical scope of the present invention shall be covered by the scope of the present invention.

Claims (10)

1. The continuous flour screening device comprises a frame and is characterized by further comprising two concentric cylinder screen meshes (7), wherein more than four partition plates (4) which are uniformly distributed at equal angles are fixedly connected between the cylinder screen meshes (7), a plurality of channels with fan-shaped horizontal cross sections are formed between the cylinder screen meshes (7) and the partition plates (4), a transmission assembly for driving the cylinder screen meshes (7) to rotate is installed on the frame, an upper plate (1) is rotatably and hermetically connected above the cylinder screen meshes (7), a lower plate (6) is rotatably and hermetically connected below the cylinder screen meshes (7), the upper plate (1) and the lower plate (6) are fixedly connected with the frame, a plurality of storage cavities (5) are formed among the upper plate (1), the cylinder screen meshes (7), the partition plates (4) and the lower plate (6), a plurality of connecting pipelines (2) are fixedly connected to the upper portion of the upper plate (1), through connecting tube (2) intercommunication two adjacent storage chamber (5), connecting tube (2) internally mounted has fan (9), through fan (9) make connecting tube (2) one end is breathed in, one end is blown, a feed inlet (3) has been seted up in upper plate (1), bin outlet (16) has been seted up in hypoplastron (6).
2. A continuous flour screening device according to claim 1, characterized in that the transmission component comprises a gear ring (8) and a motor (11) fixedly connected to the frame, the gear ring (8) is fixedly connected to the outer circumferential wall of the cylindrical screen (7) located at the outer ring, and a gear (10) engaged with the gear ring (8) is fixedly connected to the power output shaft of the motor (11).
3. A continuous flour screening device according to claim 1, characterized in that the transmission assembly comprises a gear ring (8) and a motor (11) fixedly connected to the frame, the gear ring (8) is fixedly connected to the inner circumferential wall of the drum screen (7) positioned at the inner ring, and a gear (10) engaged with the gear ring (8) is fixedly connected to the power output shaft of the motor (11).
4. A continuous flour screening device according to claim 2 or 3 wherein said ring gear (8) is fixedly attached to the upper part of the peripheral wall of the drum screen (7).
5. A continuous flour screening device according to claim 1, wherein said upper plate (1) is a disk structure, said lower plate (6) is a hollow circular ring structure, an aggregate casing (15) is fixedly connected under said upper plate (1), said aggregate casing (15) covers said barrel screen (7) and said lower plate (6), said aggregate casing (15) is installed with a plurality of one-way air inlet valves, said discharge port (16) extends to the outside of said aggregate casing (15) through a discharge pipe (17).
6. A continuous flour screening device according to claim 5, characterized in that a negative pressure flour suction device is connected below the aggregate casing (15).
7. The continuous flour screening device according to claim 1, wherein the upper end and the lower end of the tube screen (7) are fixedly connected or integrally formed with annular convex plates (12), the upper plate (1) and the lower plate (6) are respectively provided with an annular groove (13) matched with the annular convex plates (12), the annular convex plates (12) are inserted into the annular grooves (13), balls (14) are arranged between the end parts of the annular convex plates (12) and the annular grooves (13), and/or sealing rings with O-shaped cross sections are arranged between the annular convex plates (12) and the annular grooves (13).
8. A continuous flour screening device according to claim 1, characterized in that each two adjacent storage chambers (5) are grouped, one for each group of storage chambers (5) and one for each connecting duct (2).
9. A continuous flour screening device according to claim 1, wherein every three adjacent storage chambers (5) are in a group, each group of storage chambers (5) corresponds to two connecting pipelines (2), the air outlet ends of the two connecting pipelines (2) are communicated with the same storage chamber (5), and the air suction ends of the two connecting pipelines (2) are respectively communicated with the rest storage chambers (5).
10. A continuous flour screening device according to claim 1, wherein every three adjacent storage chambers (5) are in a group, each group of storage chambers (5) corresponds to two connecting pipelines (2), the air suction ends of the two connecting pipelines (2) are communicated with the same storage chamber (5), and the air outlet ends of the two connecting pipelines (2) are respectively communicated with the rest storage chambers (5).
CN202110971157.9A 2021-08-24 2021-08-24 Continuous flour screening device Active CN113560182B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110971157.9A CN113560182B (en) 2021-08-24 2021-08-24 Continuous flour screening device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110971157.9A CN113560182B (en) 2021-08-24 2021-08-24 Continuous flour screening device

Publications (2)

Publication Number Publication Date
CN113560182A true CN113560182A (en) 2021-10-29
CN113560182B CN113560182B (en) 2022-06-14

Family

ID=78172436

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110971157.9A Active CN113560182B (en) 2021-08-24 2021-08-24 Continuous flour screening device

Country Status (1)

Country Link
CN (1) CN113560182B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114345704A (en) * 2022-01-07 2022-04-15 陈永泉 Screening installation of flour production usefulness

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009247970A (en) * 2008-04-04 2009-10-29 Naganawa Kogyo Kk Residue treatment apparatus
CN205762327U (en) * 2016-05-30 2016-12-07 南昌鼎锋矿山设备有限公司 A kind of Novel sand powder seperator
CN107597582A (en) * 2017-10-09 2018-01-19 农业部南京农业机械化研究所 Aspirated-air type unginned cotton impurity separation barrel
CN109414728A (en) * 2016-05-05 2019-03-01 瑞科硅公司 Method and apparatus for the separate fine particles material from the mixture of coarse particulate material and fine particle materials
CN109432945A (en) * 2018-10-30 2019-03-08 北京启顺京腾科技有限责任公司 Molecular sieve drum and screening plant
CN211303838U (en) * 2019-12-18 2020-08-21 苏州一工机械有限公司 Powder selection drum sieve
CN111811235A (en) * 2020-07-03 2020-10-23 宜兴市金裕穗农业产业发展有限公司 High-efficient grain drying-machine
CN111921583A (en) * 2020-07-31 2020-11-13 陕西省泾阳县自强面粉有限责任公司 Flour production system
CN112958436A (en) * 2021-02-04 2021-06-15 安徽雪莲面粉有限责任公司 Positive and negative pressure reverse type fine flour screening device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009247970A (en) * 2008-04-04 2009-10-29 Naganawa Kogyo Kk Residue treatment apparatus
CN109414728A (en) * 2016-05-05 2019-03-01 瑞科硅公司 Method and apparatus for the separate fine particles material from the mixture of coarse particulate material and fine particle materials
CN205762327U (en) * 2016-05-30 2016-12-07 南昌鼎锋矿山设备有限公司 A kind of Novel sand powder seperator
CN107597582A (en) * 2017-10-09 2018-01-19 农业部南京农业机械化研究所 Aspirated-air type unginned cotton impurity separation barrel
CN109432945A (en) * 2018-10-30 2019-03-08 北京启顺京腾科技有限责任公司 Molecular sieve drum and screening plant
CN211303838U (en) * 2019-12-18 2020-08-21 苏州一工机械有限公司 Powder selection drum sieve
CN111811235A (en) * 2020-07-03 2020-10-23 宜兴市金裕穗农业产业发展有限公司 High-efficient grain drying-machine
CN111921583A (en) * 2020-07-31 2020-11-13 陕西省泾阳县自强面粉有限责任公司 Flour production system
CN112958436A (en) * 2021-02-04 2021-06-15 安徽雪莲面粉有限责任公司 Positive and negative pressure reverse type fine flour screening device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114345704A (en) * 2022-01-07 2022-04-15 陈永泉 Screening installation of flour production usefulness

Also Published As

Publication number Publication date
CN113560182B (en) 2022-06-14

Similar Documents

Publication Publication Date Title
US10568479B2 (en) Handheld dust collector having spiral two-stage tornado dust-air separation structure
KR102552903B1 (en) Cleaner
KR20150005594A (en) Air-cleaning device
CN113560182B (en) Continuous flour screening device
CN111659201A (en) Based on roll and revolve dynamic formula ventilation filter equipment
CN110665790A (en) Hierarchical screening device is used in flour production
CN110043968A (en) A kind of new blower of axial-flow type wall hanging and its construction method
CN110200547A (en) A kind of dedusting structure with metal mesh filter structure
CN211215936U (en) Dust collecting device with sweeping function for tail belt filter screen of sintering machine
CN210241827U (en) Environment-friendly air purifier
CN113399409A (en) Factory building dust pelletizing system and dust collector
CN116273263B (en) Screening and separating equipment for rice processing
CN113521913B (en) Building indoor gas purification device
CN215409458U (en) Air blower air inlet filtering device
CN219691751U (en) Combined pump
CN215348690U (en) Automatic back-blowing device and dust collector adopting same
CN217330110U (en) One-way transmission harmful gas ventilation equipment for green building
CN112963386B (en) Integrated filtering air inlet system
CN213494935U (en) Screening installation is used in herbal pieces-processing with dust removal function
CN111207116A (en) Scavenger fan with air filtering structure
CN208541937U (en) A kind of blending box dust-extraction unit
CN219563828U (en) Energy-saving material sucking machine
CN217511428U (en) Filter for air inlet of dry pump
CN218684097U (en) Vacuum cleaner
CN220702138U (en) Dustbin

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
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 invention: A continuous flour screening device

Effective date of registration: 20230728

Granted publication date: 20220614

Pledgee: Anhui Guoyang Rural Commercial Bank Co.,Ltd.

Pledgor: Anhui Xuelian flour Co.,Ltd.

Registration number: Y2023980050249

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: 20231109

Granted publication date: 20220614

Pledgee: Anhui Guoyang Rural Commercial Bank Co.,Ltd.

Pledgor: Anhui Xuelian flour Co.,Ltd.

Registration number: Y2023980050249