CN109304813B - Exhaust structure of ready-mixed concrete powder scale - Google Patents
Exhaust structure of ready-mixed concrete powder scale Download PDFInfo
- Publication number
- CN109304813B CN109304813B CN201811398629.0A CN201811398629A CN109304813B CN 109304813 B CN109304813 B CN 109304813B CN 201811398629 A CN201811398629 A CN 201811398629A CN 109304813 B CN109304813 B CN 109304813B
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- CN
- China
- Prior art keywords
- beating
- exhaust pipe
- pipe
- beating rod
- rod
- 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.)
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- 239000004567 concrete Substances 0.000 title claims abstract description 16
- 239000000843 powder Substances 0.000 title claims abstract description 14
- 238000010009 beating Methods 0.000 claims description 81
- 238000007789 sealing Methods 0.000 claims description 31
- 210000000078 claw Anatomy 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000005303 weighing Methods 0.000 description 8
- 239000004568 cement Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005457 optimization Methods 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C9/00—General arrangement or layout of plant
- B28C9/02—General arrangement or layout of plant for producing mixtures of clay or cement with other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/74—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element
- B01D46/76—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element involving vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0422—Weighing predetermined amounts of ingredients, e.g. for consecutive delivery
- B28C7/044—Weighing mechanisms specially adapted therefor; Weighing containers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses an exhaust structure of a premixed concrete powder balance, which comprises an exhaust pipe which is vertically arranged, wherein an outer connecting plate is fixedly connected to an orifice of the upper end of the exhaust pipe, an inner supporting disc is arranged above the orifice of the exhaust pipe and is fixed on the exhaust pipe through a supporting bar for supporting, a circle of filter screen which is integrally in a circular table shape and is arranged with the same center line of the exhaust pipe is also arranged between the edge of the inner supporting disc and the edge of the orifice of the upper end of the exhaust pipe, the filter screen is positioned on the outer side of the supporting bar and can shade an opening between the edge of the inner supporting disc and the edge of the orifice of the upper end of the exhaust pipe, and the upper end and the lower end of the filter screen respectively extend to the inner supporting disc and the outer connecting plate and are sealed through an inner pressure plate and an outer pressing ring. The invention has simple structure, can filter dust in the exhaust gas in the process of feeding powder into the scale, and avoids the dust scattering and polluting the environment.
Description
Technical Field
The invention relates to an exhaust structure, in particular to an exhaust structure of a ready-mixed concrete powder scale.
Background
A concrete mixing plant is a combination device for intensively mixing concrete, also called a concrete precast plant. The concrete mixing station is a building material manufacturing device which is composed of a mixing main machine, a material weighing system, a material conveying system, a material storage system, a control system and other auxiliary facilities, and the main working principle of the building material manufacturing device is that cement is used as cementing material, raw materials such as sand stone, lime, cinder and the like are mixed and stirred, finally the building material is manufactured into concrete, and the concrete is put into construction production. The material weighing system comprises a powder weighing system and an aggregate weighing system, wherein the powder weighing system is mainly used for weighing cement, and because a scale body for weighing powder is of a closed structure, an exhaust port is required to be arranged to balance air pressure during feeding. However, a large amount of dust is generated in the feeding process of the cement, and the dust is discharged to the outside from the exhaust port, so that the environment is polluted.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problems that: how to provide a ready-mixed concrete powder balance exhaust structure that can filter the dust in the exhaust, avoid external pollution.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a premixed concrete powder balance exhaust structure, the blast pipe of vertical setting is including, the upper end mouth of pipe department fixedly connected with level of blast pipe and the outer connecting plate that sets up around the blast pipe, the upper position level of blast pipe mouth of pipe is provided with interior supporting disk, the diameter of interior supporting disk is less than the internal diameter of blast pipe, the central line of interior supporting disk and the central line of blast pipe are coaxial setting, use the blast pipe central line to be the centre of a circle around its even interval between the mouth of pipe of interior supporting disk and blast pipe, support disk edge and blast pipe upper end mouth of pipe edge are fixed in the both ends of support bar respectively, still be provided with the round and wholly be the round platform form and with the outer connecting plate that sets up of blast pipe with the central line between inner supporting disk edge and the blast pipe upper end mouth of pipe edge, the filter screen is located the outside of support disk edge and can be to the opening between blast pipe upper end mouth of pipe edge, the upper end of filter screen extends to interior supporting disk upper surface in order to be formed with the upper seal portion, interior supporting disk upper surface level is provided with interior and compresses tightly the sealing portion and seals between interior supporting disk and the pressure disk through interior pressure disk, the lower extreme pressure disk extends to the outer sealing portion outside the outer sealing ring is provided with the outer sealing ring outside the sealing ring through the outer sealing ring.
In the invention, the inner supporting disc is fixed above the orifice of the exhaust pipe through the supporting bar, so that the inner supporting disc and the periphery of the orifice of the exhaust pipe form an exhaust port; the outside of gas vent is provided with the filter screen that is the round platform form, and the both ends of filter screen compress tightly sealedly through interior pressure disk and outer clamping ring after extending respectively, forms seal structure to the gas vent like this. When cement feeding is weighed, cement dust enters the exhaust pipe along with air, and is blocked by the filter screen in the outward discharging process, the dust is filtered, and clean air is discharged. After dust is accumulated to a certain extent on the inner side of the filter screen, the filter screen which is arranged in an inward inclined manner can enable the dust which is accumulated together to fall into the weighing body under the influence of self gravity, and the service life of the filter screen is prolonged.
As optimization, the position between the inner support disc and the pipe orifice at the upper end of the exhaust pipe is also horizontally provided with a circular limit ring, the central line of the circular limit ring and the central line of the exhaust pipe are coaxially arranged, the circular limit ring is positioned at the inner side of the support bar, the outer circumferential surface of the circular limit ring is fixedly connected with a connecting strip which is fixedly connected with each support bar corresponding to the support bar, the positions of the circular limit ring and between two adjacent support bars are provided with perforations which extend along the radial direction of the circular limit ring, the inner side surface of the circular limit ring is fixedly connected with a guide pipe which extends along the radial direction of the circular limit ring and is arranged with the same central line as the perforations, the guide pipe is internally provided with a beating rod in a sliding fit manner along the length direction of the guide pipe, the outer side end of the beating rod passes through the perforation and extends out of the outer side of the circular limiting ring, the inner side end of the beating rod extends out of the guide pipe, a front limiting stop is formed on the rod body, which is arranged on the beating rod and is positioned outside the circular limiting ring, a rear limiting stop is formed on the rod body, which is arranged on one side of the beating rod and extends out of the guide pipe, when the rear limiting stop is abutted against the guide pipe, the outer side end of the beating rod can beat the filter screen, a spring which can provide spring force for the front limiting stop to be abutted against the circular limiting ring is sleeved on the rod body, the distance between the inner side end of the beating rod and the front limiting stop is smaller than the outer circle radius of the circular limiting ring, a beating space is formed between the inner side ends of all beating rods, a beating rod which is in sliding fit with the inner supporting disc is penetrated along the central line direction of the inner supporting disc, the utility model discloses a sealing device for the inner pressure plate, including interior pressure plate, sealing rod, the interior pressure plate is last to be offered can make the via hole that the beating rod passed, on the beating rod just be located the cover is equipped with round sealing pad on the shaft of interior pressure plate top, the top pole top card that just is located sealing pad on the beating rod is established and is used for carrying out spacing snap ring to sealing pad, the lower extreme of beating the pole passes and beats the space and stretch out in beating the space below, the lower extreme of beating the pole is outwards protruding to be formed with the toper striking head that the diameter increases gradually along its axis direction, when beating the pole upward movement, the toper striking head can be used in beating the inboard end of stick on the end so that back spacing fender butt is on the stand pipe. After the filter screen is used for a long time, dust is hardened on the inner side of the filter screen, so that the filter effect is influenced, and the exhaust effect is also influenced. When dust need clear up at filter screen inboard knot, upwards carry fast and draw the rapping bar, the part that the rapping bar is located the blast pipe is risen, and the toper striking head strikes simultaneously on the inboard end of rapping bar, and the inside end of rapping bar is after the atress, through the decomposition of effort direction, and the rapping bar moves towards annular spacing collar outside direction along the stand pipe, and the spring begins to compress simultaneously, and the final outer end of rapping bar is beaten on the filter screen. Through beating the stick to beating of filter screen for the dust hardening drops at the inboard dust hardening of filter screen, makes a round trip to reciprocate and beats the pole, makes the stick of beating make a round trip to beat the filter screen equally many times, beats dust hardening clean up, and then makes the filter screen filter the dust in the exhaust that can be normal, makes the exhaust unobstructed more, has also improved the life of filter screen.
As optimization, the inner end of the beating rod is a convex arc end. The convex arc end is smoother in contact with the conical impact head and in interaction, so that jamming is avoided.
As optimization, the outside end of beating the stick is provided with the cross claw and with the center fixed connection of cross claw, the axis of beating the stick is perpendicular to cross claw place plane, four claw ends department of cross claw all is towards keeping away from its place beat the protruding head that is formed with of stick direction of beating. Four beating heads on the cross support claw can beat the filter screen in one area, so that the cleaning effect on dust hardening matters is improved.
As optimization, the upper end of the beating rod is provided with a grab handle which is coaxial with the beating rod and one end of which is fixedly connected with the beating rod. The grab handle not only can facilitate the handheld operation of an operator, but also can enable the sealing gasket to increase the tightness between the sealing gasket and the inner pressure disc by the self weight of the grab handle.
In summary, the beneficial effects of the invention are as follows: the invention has simple structure, can filter dust in the exhaust gas in the process of feeding powder into the scale, and avoids the dust scattering and polluting the environment.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, in which:
fig. 1 is a cross-sectional view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the exhaust structure of the ready-mixed concrete powder balance in the specific embodiment comprises an exhaust pipe 2 which is vertically arranged, an outer connecting plate 3 which is horizontally connected with the pipe orifice of the upper end of the exhaust pipe 2 and is arranged around the exhaust pipe is fixedly connected, an inner supporting disc 4 is horizontally arranged above the pipe orifice of the exhaust pipe 2, the diameter of the inner supporting disc 4 is smaller than the inner diameter of the exhaust pipe 2, the central line of the inner supporting disc 4 and the central line of the exhaust pipe 2 are coaxially arranged, a plurality of supporting strips 5 are uniformly arranged between the inner supporting disc 4 and the pipe orifice of the exhaust pipe 2 at intervals around the central line of the exhaust pipe 2 as the center of a circle, two ends of each supporting strip 5 are respectively fixedly connected with the edge of the inner supporting disc 4 and the edge of the pipe orifice of the upper end of the exhaust pipe 2 to fix the inner supporting disc 4, still be provided with round whole being round platform form and with blast pipe 3 concentric line setting's filter screen 6 between inner support disc 4 edge and the blast pipe 2 upper end mouth of pipe edge, filter screen 6 is located the outside of support bar 5 and can shelter from the opening between inner support disc 4 edge and the blast pipe 2 upper end mouth of pipe edge, the upper end of filter screen 6 extends to inner support disc 4 upper surface in order to be formed with upper seal portion, inner support disc 4 upper surface level is provided with interior pressure disk 7 and compresses tightly upper seal portion through interior pressure disk 7 and seals between inner pressure disk 7 and inner support disc 4, the lower extreme of filter screen 6 extends to outer connecting plate 3 upper surface in order to form lower seal portion, outer connecting plate 3's upper surface level is provided with around blast pipe 2 outer clamping ring 8 that sets up and compresses tightly lower seal portion through outer clamping ring 8 and outer connecting plate 3 between outer clamping ring 8 and outer connecting plate 3.
In this embodiment, a circular limit ring 9 is horizontally disposed at a position between the inner support disc 4 and the pipe orifice at the upper end of the exhaust pipe 2, the center line of the circular limit ring 9 and the center line of the exhaust pipe 2 are coaxially disposed, the circular limit ring 9 is disposed at the inner side of the support bar 5, a connecting strip 10 fixedly connected with the support bar 5 corresponding to the outer peripheral surface of the circular limit ring 9 is fixedly connected with the position of each support bar 5, perforations extending along the radial direction of the circular limit ring 9 are formed at positions on the circular limit ring 9 and between two adjacent support bars 5, a guide pipe 11 extending along the radial direction of the circular limit ring 9 and disposed at the same center line as the perforations is fixedly connected with the position of each perforation on the inner side surface of the circular limit ring 9, a beating rod 12 is slidingly matched in the guide tube 11 along the length direction, the outer side end of the beating rod 12 passes through the perforation and extends out of the circular limit ring 9, the inner side end of the beating rod 12 extends out of the guide tube 11, a front limit stop 13 is formed on the rod body of the beating rod 12, which is positioned outside the circular limit ring 9, a rear limit stop 14 is formed on the rod body of the beating rod 12, which is positioned on one side of the rod body extending out of the guide tube 11, when the rear limit stop 14 is abutted against the guide tube 11, the outer side end of the beating rod 12 can strike the filter screen 6, a spring 15 which can provide spring force for the front limit stop 13 to be abutted against the circular limit ring 9 is sleeved on the rod body positioned between the rear limit stop 14 and the guide tube 11, the distance between the inner side end of the beating rod 12 and the front limit stop 13 is smaller than the outer circle radius of the circular limit ring 9, the inside ends of all beating rods 12 are formed with beating spaces, a beating rod 16 which is in sliding fit with the inner supporting disc 4 is penetrated along the central line direction of the inner supporting disc 4, a through hole which can enable the beating rod 16 to penetrate is formed in the inner pressing disc 7, a circle of sealing gasket 17 is sleeved on the rod body which is arranged on the beating rod 16 and above the inner pressing disc 7, a clamping ring which is used for limiting the sealing gasket 17 is clamped on the rod body which is arranged on the beating rod 16 and above the sealing gasket 17, the lower end of the beating rod 16 penetrates through the beating spaces and extends below the beating spaces, a conical beating head 18 with gradually increased diameter is outwards protruded at the lower end of the beating rod 16 along the axial line direction of the beating rod, and when the beating rod 16 moves upwards, the conical beating head 18 can act on the inside end of the beating rod 12 so as to enable the rear limiting stopper 14 to be abutted on the guide tube 11.
In this embodiment, the inner end of the striking rod 12 is a convex arc end.
In this embodiment, the outer end of the striking rod 12 is provided with a cross claw 19 and is fixedly connected with the center of the cross claw 19, the axis of the striking rod 12 is perpendicular to the plane of the cross claw 19, and the four claw ends of the cross claw 19 are all protruded towards the direction away from the striking rod 12 where the four claw ends are located to form a striking head 20.
In this embodiment, the upper end of the striking rod 16 is provided with a grab handle 1 coaxial with the striking rod 16, and one end of the grab handle is fixedly connected with the striking rod 16.
In the concrete implementation process, just keep away from on the inner wall of stand pipe the one end of ring shape spacing collar is followed stand pipe length direction extends and is provided with the guide way, the stick of beating the stick is last to extend the arch along its length direction and be formed with the guide bar with guide way matched with, works as beat the stick and remove along its length direction, guide bar and guide way sliding fit in order to follow guide way length direction and slide, and the guide way can rotate along its axis direction with the guide bar and carry out spacingly, avoids its rotation back, and individual beating the head can't hit the filter screen.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be understood that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (2)
1. The utility model provides a ready-mixed concrete powder balance exhaust structure, includes the blast pipe of vertical setting, its characterized in that: an outer connecting plate which is horizontally connected with the pipe orifice of the upper end of the exhaust pipe and is arranged around the exhaust pipe is fixedly connected with the pipe orifice of the upper end of the exhaust pipe, an inner supporting disc is horizontally arranged above the pipe orifice of the exhaust pipe, the diameter of the inner supporting disc is smaller than the inner diameter of the exhaust pipe, the central line of the inner supporting disc and the central line of the exhaust pipe are coaxially arranged, a plurality of supporting bars are uniformly arranged between the inner supporting disc and the pipe orifice of the exhaust pipe at intervals around the central line of the exhaust pipe, two ends of each supporting bar are respectively fixedly connected with the edge of the inner supporting disc and the edge of the pipe orifice of the upper end of the exhaust pipe to fix the inner supporting disc, a circle of filter screen which is integrally in a round table shape and is arranged with the central line of the exhaust pipe is also arranged between the edge of the inner supporting disc and the upper end of the pipe orifice of the exhaust pipe, the filter screen is positioned outside the supporting bars and can shade the opening between the edge of the inner supporting disc and the pipe orifice of the upper end of the exhaust pipe, the upper end of the filter screen is horizontally arranged with an inner pressure plate and the upper sealing part, the upper sealing part is tightly sealed between the inner exhaust pipe and the inner supporting disc by the inner sealing part, the lower end of the filter screen extends to the upper surface of the outer connecting plate to form a lower sealing part, the upper sealing part is horizontally arranged around the outer sealing part, and the outer sealing part between the outer sealing part and the outer sealing ring by the outer sealing ring and sealing ring by the outer sealing ring.
A circular limit ring is horizontally arranged at the position between the inner support disc and the pipe orifice at the upper end of the exhaust pipe, the central line of the circular limit ring and the central line of the exhaust pipe are coaxially arranged, the circular limit ring is positioned at the inner side of the support bar, a connecting bar fixedly connected with the support bar corresponding to the support bar is fixedly connected with the outer peripheral surface of the circular limit ring corresponding to the position of each support bar, a perforation extending along the radial direction of the circular limit ring is arranged at the position between two adjacent support bars on the circular limit ring, a guide pipe extending along the radial direction of the circular limit ring and arranged with the same central line with the perforation is fixedly connected with the position corresponding to each perforation on the inner side surface of the circular limit ring, a beating rod is slidingly matched in the guide pipe along the length direction of the guide pipe, the outer side end of the beating rod passes through the perforation and extends out of the outer side of the circular limiting ring, the inner side end of the beating rod extends out of the guide pipe, a front limiting stop is formed on the rod body, which is arranged on the beating rod and is positioned outside the circular limiting ring, a rear limiting stop is formed on the rod body, which is arranged on one side of the beating rod and extends out of the guide pipe, when the rear limiting stop is abutted against the guide pipe, the outer side end of the beating rod can beat the filter screen, a spring which can provide spring force for the front limiting stop to be abutted against the circular limiting ring is sleeved on the rod body, the distance between the inner side end of the beating rod and the front limiting stop is smaller than the outer circle radius of the circular limiting ring, a beating space is formed between the inner side ends of all beating rods, a beating rod which is in sliding fit with the inner supporting disc is penetrated along the central line direction of the inner supporting disc, the inner pressure plate is provided with a through hole through which a beating rod passes, a circle of sealing gasket is sleeved on a rod body which is arranged on the beating rod and positioned above the inner pressure plate, a clamping ring for limiting the sealing gasket is clamped on the rod body which is arranged on the beating rod and positioned above the sealing gasket, the lower end of the beating rod passes through a beating space and stretches out of the lower part of the beating space, the lower end of the beating rod protrudes outwards along the axial direction of the beating rod to form a conical impact head with gradually increased diameter, and when the beating rod moves upwards, the conical impact head can act on the end head of the inner side end of the beating rod so as to enable a rear limiting stop to be abutted on the guide pipe;
the inner end of the beating rod is a convex arc end;
the outer side end of the beating rod is provided with a cross supporting claw and is fixedly connected with the center of the cross supporting claw, the axis of the beating rod is perpendicular to the plane where the cross supporting claw is located, and the four claw ends of the cross supporting claw are all protruded towards the direction away from the beating rod to form beating heads.
2. The ready mixed concrete powder scale exhaust structure according to claim 1, characterized in that: the upper end of the beating rod is provided with a grab handle which is coaxial with the beating rod and one end of which is fixedly connected with the beating rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811398629.0A CN109304813B (en) | 2018-11-22 | 2018-11-22 | Exhaust structure of ready-mixed concrete powder scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811398629.0A CN109304813B (en) | 2018-11-22 | 2018-11-22 | Exhaust structure of ready-mixed concrete powder scale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109304813A CN109304813A (en) | 2019-02-05 |
| CN109304813B true CN109304813B (en) | 2023-10-31 |
Family
ID=65223071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811398629.0A Active CN109304813B (en) | 2018-11-22 | 2018-11-22 | Exhaust structure of ready-mixed concrete powder scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109304813B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407058A (en) * | 2010-09-20 | 2012-04-11 | 何润岚 | High-efficiency spiral deduster |
| CN206346494U (en) * | 2017-01-03 | 2017-07-21 | 明达海洋工程有限公司 | Infundibulate concrete coarse aggregate filter |
| CN206597357U (en) * | 2017-01-24 | 2017-10-31 | 象山腾豹电子有限公司 | A kind of space flight kerosene multiple stage filter units |
| US10052666B1 (en) * | 2014-11-07 | 2018-08-21 | Easy Foam, Inc. | In situ foam generation apparatus for on-site, on-demand, economical production of foaming solvents |
| CN108635994A (en) * | 2018-06-14 | 2018-10-12 | 肇庆市天地人科技有限公司 | A kind of environmental protection air air purifying apparatus |
-
2018
- 2018-11-22 CN CN201811398629.0A patent/CN109304813B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407058A (en) * | 2010-09-20 | 2012-04-11 | 何润岚 | High-efficiency spiral deduster |
| US10052666B1 (en) * | 2014-11-07 | 2018-08-21 | Easy Foam, Inc. | In situ foam generation apparatus for on-site, on-demand, economical production of foaming solvents |
| CN206346494U (en) * | 2017-01-03 | 2017-07-21 | 明达海洋工程有限公司 | Infundibulate concrete coarse aggregate filter |
| CN206597357U (en) * | 2017-01-24 | 2017-10-31 | 象山腾豹电子有限公司 | A kind of space flight kerosene multiple stage filter units |
| CN108635994A (en) * | 2018-06-14 | 2018-10-12 | 肇庆市天地人科技有限公司 | A kind of environmental protection air air purifying apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109304813A (en) | 2019-02-05 |
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