CN205023225U - Limestone powder chamber - Google Patents
Limestone powder chamber Download PDFInfo
- Publication number
- CN205023225U CN205023225U CN201520764025.9U CN201520764025U CN205023225U CN 205023225 U CN205023225 U CN 205023225U CN 201520764025 U CN201520764025 U CN 201520764025U CN 205023225 U CN205023225 U CN 205023225U
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- China
- Prior art keywords
- limestone powder
- powder bin
- agstone
- trapezoidal
- back cover
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Abstract
The utility model provides a limestone powder chamber. Wherein, this limestone powder chamber includes: the storage storehouse body, trapezoidal back cover, output quantity controlling means and a plurality of conveyor, wide mouthful of end seal installation of trapezoidal back cover is in the bottom of saving the storehouse body, and the slot end at trapezoidal back cover is installed in the dispersion of a plurality of conveyor, and output quantity controlling means installs on conveyor, measures the limestone flour's of this conveyor output output quantity. This limestone powder chamber has set up trapezoidal back cover in storage storehouse body bottom, and the trapezoidal dust that is unfavorable for is piled up, can be clean with the limestone flour output of saving storehouse body bottom, output quantity controlling means can calculate limestone flour's output quantity accurately, so not only avoided the limestone powder chamber dust to pile up, also can export limestone flour accurately according to quantity according to limestone flour's demand, reduced and the accuracy to have predictd the limestone flour waste that leads to because the dust is piled up with the output quantity.
Description
Technical field
The utility model relates to the raw material of industry and memory storage technical field, in particular to a kind of limestone powder bin.
Background technology
At present, limestone powder bin is widely used in chemical industry, and limestone powder bin can store large quantities of lime stone flour, in order to chemical industry production and application.
Current, limestone powder bin is generally cylinder powder storehouse.Cylinder powder storehouse is made up of cylinder storage room and delivery pipe, and delivery pipe is arranged on the bottom of cylinder storage room.When carrying agstone outward from cylinder powder storehouse, the agstone of cylinder storage indoor storage is directly transported out by the delivery pipe of bottom.
But when the agstone surplus in cylinder storage room is not enough, agstone is exported by the delivery pipe of bottom, all agstones cannot be exported, occur that blowing is not thorough, cause dust accumulation in storehouse, and the accuracy rate exporting agstone cannot be estimated, uncontrollable output, easily causes waste.
Utility model content
In view of this, the object of the utility model embodiment is to provide a kind of limestone powder bin, alleviates dust accumulation problem in limestone powder bin, and the output of accurate Calculation agstone control the output of agstone, reduce the waste of agstone.
First aspect, the utility model embodiment provides a kind of limestone powder bin, and described limestone powder bin comprises: store warehouse, trapezoidal back cover, output control setup and multiple feedway;
The wide mouth end sealing of described trapezoidal back cover is arranged on the bottom of described storage warehouse;
Described multiple feedway dispersion is arranged on the slot end of described trapezoidal back cover;
Described output control setup is arranged on described feedway, measures the output of the agstone that described feedway exports.
In conjunction with first aspect, the utility model embodiment provides the first possible implementation of above-mentioned first aspect, and wherein, described storage warehouse comprises: cylindrical stored tank and trapezoidally to bind;
Described trapezoidal wide mouth end sealing of binding is arranged on the top of described cylindrical stored tank.
In conjunction with the first possible implementation of first aspect, the utility model embodiment provides the possible implementation of the second of above-mentioned first aspect, wherein, the described trapezoidal slot end bound is provided with inlet point, described inlet point is configured with capping, not to inlet point described in described lidstock during described storage warehouse charging.
In conjunction with first aspect, the utility model embodiment provides the third possible implementation of above-mentioned first aspect, and wherein, described feedway comprises feeding port and delivery pipe;
The upper end of described feeding port is arranged on the slot end of described trapezoidal back cover, and the lower end of described feeding port is connected with described delivery pipe.
In conjunction with first aspect, the utility model embodiment provides the 4th kind of possible implementation of above-mentioned first aspect, and wherein, described feeding port comprises: cylindrical feed cylinder and trapezoidal feeding port;
The upper end of described cylindrical feed cylinder is arranged on the slot end of described trapezoidal back cover;
The wide mouth end sealing of described trapezoidal feeding port is arranged on the lower end of described cylindrical feed cylinder, and the slot end of described trapezoidal feeding port is connected with described delivery pipe.
In conjunction with the third possible implementation of first aspect, the utility model embodiment provides the 5th kind of possible implementation of above-mentioned first aspect, and wherein, described output control setup comprises control cock and metering device;
Described control cock is arranged on the position near described feeding port on described delivery pipe;
Described metering device is arranged on the downside of the described control cock that described delivery pipe is installed.
In conjunction with the 5th kind of possible implementation of first aspect, the utility model embodiment provides the 6th kind of possible implementation of above-mentioned first aspect, and wherein, described output control setup also comprises measurement controller;
Described measurement controller is connected with described control cock and described metering device respectively, receives the output of the agstone that described metering device sends, controls opening or closing of described control cock.
In conjunction with first aspect, the utility model embodiment provides the 7th kind of possible implementation of above-mentioned first aspect, and wherein, described limestone powder bin also comprises surplus detector, surplus controller and dust cleaner;
Described surplus detector, described surplus controller and described dust cleaner are installed in the bottom inside described storage warehouse;
Described surplus detector is connected with described surplus controller, and the balance information of detection is transferred to described surplus controller;
Described surplus controller is connected with described dust cleaner, controls the slot end that remaining agstone is swept to described trapezoidal back cover by described dust cleaner.
In conjunction with the 7th kind of possible implementation of first aspect, the utility model embodiment provides the 8th kind of possible implementation of above-mentioned first aspect, wherein, described surplus controller is also connected with the apparatus for feeding of outside, and transmission charging control signal gives the apparatus for feeding of described outside.
In conjunction with first aspect, the utility model embodiment provides the 9th kind of possible implementation of above-mentioned first aspect, and wherein, described limestone powder bin also comprises desicator;
It is inner that described desicator is arranged on described storage warehouse, stores desiccant in described desicator.
In the utility model embodiment, limestone powder bin comprises: store warehouse, trapezoidal back cover, output control setup and multiple feedway, the wide mouth end sealing of trapezoidal back cover is arranged on the bottom storing warehouse, multiple feedway dispersions are arranged on the slot end of trapezoidal back cover, output control setup is installed on a conveyor, measures the output of the agstone that this feedway exports.This limestone powder bin is provided with trapezoidal back cover bottom storage warehouse, is trapezoidally unfavorable for dust accumulation, can export clean by the agstone stored bottom warehouse; Output control setup accurately can calculate the output of agstone, so not only avoid limestone powder bin dust accumulation, also can come accurately to export agstone according to quantity according to the demand of agstone, decrease because dust accumulation and output accurately cannot estimate the waste of the agstone caused.
For making above-mentioned purpose of the present utility model, feature and advantage become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Figure 1A shows the constructional drawing of a kind of limestone powder bin that the utility model embodiment 1 provides;
Figure 1B shows a kind of constructional drawing storing warehouse that the utility model embodiment 1 provides;
Fig. 1 C shows the first schematic diagram of a kind of limestone powder bin that the utility model embodiment 1 provides;
Fig. 1 D shows the second schematic diagram of a kind of limestone powder bin that the utility model embodiment 1 provides;
Fig. 1 E shows the schematic diagram of a kind of output control setup that the utility model embodiment 1 provides;
Fig. 1 F shows the schematic diagram of a kind of surplus control setup that the utility model embodiment 1 provides.
Description of symbols in above figure is as follows:
1: store warehouse, 2: trapezoidal back cover, 3: output control setup, 4: feedway, 5: surplus detector, 6: surplus controller, 7: dust cleaner;
11: cylindrical storage tank, 12: trapezoidally to bind;
121: inlet point, 122: capping;
31: control cock, 32: metering device, 33: measurement controller;
41 feeding ports, 42: delivery pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.The assembly of the utility model embodiment describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiment of the present utility model provided in the accompanying drawings and the claimed scope of the present utility model of not intended to be limiting, but selected embodiment of the present utility model is only represented.Based on embodiment of the present utility model, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
Consider in prior art, limestone powder bin is generally cylinder powder storehouse, when agstone surplus is not enough, agstone is exported by the delivery pipe bottom cylinder powder storehouse, occur that blowing is not thorough, cause dust accumulation in storehouse, and the accuracy rate exporting agstone cannot be estimated, uncontrollable output, easily causes waste.Based on this, the utility model embodiment provides a kind of limestone powder bin, accurately can calculate the output of agstone, and control the output of agstone, the agstone do not exported is exported in time, makes limestone powder bin blowing thorough, avoid agstone to pile up the waste caused.Be described below by embodiment.
Embodiment 1
See Figure 1A, the utility model embodiment provides a kind of limestone powder bin, and this limestone powder bin comprises: store warehouse 1, trapezoidal back cover 2, output control setup 3 and multiple feedway 4;
The wide mouth end sealing of trapezoidal back cover 2 is arranged on the bottom storing warehouse 1;
Multiple feedway 4 dispersions are arranged on the slot end of trapezoidal back cover 2;
Output control setup 3 is arranged on feedway 4, the output of the agstone that metering and conveying device 4 exports.
A large amount of agstones can be stored in the cavity that above-mentioned storage warehouse 1 and trapezoidal back cover 2 are formed, when carrying agstone outward from limestone powder bin, trapezoidal back cover 2 is similar to funnelform structure, the agstone stored bottom warehouse 1 is conducive to transfer out, avoid limestone powder bin dust accumulation, alleviate agstone and export unclean problem.
Above-mentioned feedway 4 is mainly used in agstone to be transported to limestone powder bin outside, and feedway 4 can be fixedly connected with limestone powder bin, also can be flexibly connected with limestone powder bin; Above-mentioned limestone powder bin can be installed multiple feedway 4, the number of concrete installation decides according to the cross-sectional area and shape etc. of the cross-sectional area of the volume of limestone powder bin, the slot end of trapezoidal back cover 2 and shape, feedway 4, only schematically indicate two feedways 4 in this Figure 1A, restriction is not made to the number of the feedway 4 in the utility model.
In addition, in the utility model embodiment, when the size of the slot end of trapezoidal back cover 2 is little, also only a feedway 4 can be set at its slot end, the size of the cross-sectional plane of this feedway 4 now arranged, more close to the size of the slot end of trapezoidal back cover 2, is more conducive to agstone to transfer out.。
The output of the major control of above-mentioned output control setup 3 and metering agstone, output control setup 3 can be arranged on feedway 4 one end near trapezoidal back cover 2.When carrying agstone outward from limestone powder bin, output control setup 3 accurately measures the output of agstone, and controls to export agstone outward or stop exporting agstone according to output, and controls the output speed of agstone.The output of the agstone of calculating also can show by output control setup 3 simultaneously, technical personnel can control the output of agstone manually or automatically according to the output of the agstone of display, can also according to the output of the agstone of display, the apparatus for feeding that notice is outside when agstone surplus is not enough is to limestone powder bin conveying agstone.
The material of above-mentioned storage warehouse 1, trapezoidal back cover 2, output control setup 3 and feedway 4 all not with limestone generation chemical reaction, ensure that the Environmental security that pulverized limestone stores.
See Figure 1B, store warehouse 1 and comprise: cylindrical stored tank 11 and trapezoidally bind 12;
Trapezoidal bind 12 wide mouth end sealing be arranged on the top of cylindrical stored tank 11.
Above-mentioned cylindrical stored tank 11 can store a large amount of agstones.
Above-mentioned trapezoidal bind 12 slot end on be provided with inlet point 121, inlet point 121 is configured with capping 122, not to capping 122 sealed feed inlet 121 during storage warehouse 1 charging.
As shown in Figure 1 C, above-mentioned capping 122 can independently be arranged on outside pulverized limestone powder storehouse, or as shown in figure ip, the part at the edge of above-mentioned capping 122 is connected with the edge of inlet point 121.
When capping 122 is independently arranged on outside limestone powder bin, on inlet point 121, inlet point 121 is closed by capping 122 is covered, or capping 122 is removed from inlet point 121, inlet point 121 is opened;
When the part at the edge of capping 122 is connected with the edge of inlet point 121, by capping 122 is detained, inlet point 121 is closed, by capping 122 is started, inlet point 121 is opened.
See Fig. 1 E, feedway 4 comprises feeding port 41 and delivery pipe 42;
The upper end of feeding port 41 is arranged on the slot end of trapezoidal back cover 2, and the lower end of feeding port 41 is connected with delivery pipe 42.
Above-mentioned delivery pipe 42 can be fixedly connected with feeding port 41, also can be flexibly connected with material mouth 41.
Delivery pipe 42 can be soft and the material with toughness is made, collapsible, can stretch, such as India rubber tube, flexible plastic tube etc., can automatically adjust according to the distance of the equipment of conveying and limestone powder bin and stretch, when not needing to carry agstone from limestone powder bin to load transfer device, delivery pipe 42 can be furled.
Above-mentioned feeding port 41 comprises: cylindrical feed cylinder 411 and trapezoidal feeding port 412;
The upper end of cylindrical feed cylinder 411 is arranged on the slot end of trapezoidal back cover 2;
The wide mouth end sealing of trapezoidal feeding port 412 is arranged on the lower end of cylindrical feed cylinder 411, and the slot end of trapezoidal feeding port 412 is connected with delivery pipe 42.
Above-mentioned trapezoidal feeding port 412 is similar to funnelform structure, is conducive to agstone and down carries from cylindrical feed cylinder 411, alleviates the problem that agstone forms dust accumulation in output procedure in feeding port.
See Fig. 1 E, output control setup 3 comprises control cock 31 and metering device 32;
Control cock 31 is arranged on the position near feeding port 41 on delivery pipe;
Metering device 32 is arranged on the downside of the control cock 31 that delivery pipe 42 is installed.
Above-mentioned control cock 31 controls to export agstone or stop exporting agstone according to the limestone output that metering device 32 measures, when needs externally carry agstone from limestone powder bin, open control cock 31 agstone to be transported to outside storehouse, and closed control valve 31 can block agstone is transported to outside storehouse; When externally carrying agstone from limestone powder bin, the speed of agstone flowing velocity can also be controlled by adjusting control valve 31.When the output of agstone reaches demand soon, the valve can turning control cock 31 down flows out lentamente to make agstone, when the agstone amount needing to carry outward is nowhere near, the valve that can tune up control cock 31 flows out rapidly to make agstone.
Above-mentioned metering device 32 mainly measures the output of agstone, and can measure the output of agstone in real time, the output of the agstone of metering can show in real time or show every preset time period.Wherein, preset time period can be five minutes or ten minutes etc., specifically can set this preset time period according to the demand of agstone, when being in great demand of agstone, the mode of the output every preset time period display agstone can be adopted.
Technical personnel is according to the output of the agstone of display, manually operation control valve 31, to realize the output controlling agstone, or the output of the agstone according to display, calculates the surplus of limestone powder bin sodalime stone flour, when limestone powder bin sodalime stone flour surplus is less than default Margin threshold, namely when surplus is not enough, transmission charging control signal gives outside apparatus for feeding, to make outside apparatus for feeding in time for limestone powder bin feeding, ensures the feed demand of limestone powder bin.
Above-mentioned output control setup 3 also comprises measurement controller 33, see Fig. 1 E.
Measurement controller 33 is connected with control cock 31 and metering device 32 respectively, receives the output of the agstone that metering device 32 sends, and controls opening or closing of control cock 31.
Measurement controller 33 is provided with control button and the corresponding control button of metering device 32 of control cock 31 correspondence.When controlling control cock 31 and metering device 32 by automated manner, control control cock 31 and metering device 32 by the corresponding button triggered on measurement controller 33.Technical personnel is by triggering the control button of control cock 31 correspondence on measurement controller 33, the valve open of control cock 31 correspondence or closedown, be transported to limestone powder bin by agstone from the slot end of trapezoidal back cover 2 or block outside agstone conveying limestone powder bin; Technical personnel, by triggering the control button of metering device 32 correspondence on measurement controller 33, controls metering device 32 and starts to calculate the output of agstone or interrupt calculating the output of agstone.
In order to eliminate the problem of dust accumulation in limestone powder bin further, the utility model embodiment is provided with surplus control setup in limestone powder bin, and see Fig. 1 F, limestone powder bin also comprises surplus detector 5, surplus controller 6 and dust cleaner 7.
Surplus detector 5, surplus controller 6 and dust cleaner 7 are installed in the bottom stored inside warehouse 1;
Surplus detector 5 is connected with surplus controller 6, and the balance information of detection is transferred to surplus controller 6;
Surplus controller 6 is connected with dust cleaner 7, controls the slot end that remaining agstone is swept to trapezoidal back cover 2 by dust cleaner 7.
Surplus controller 6 is also connected with the apparatus for feeding of outside, and transmission charging control signal gives outside apparatus for feeding.
Above-mentioned surplus detector 5 is arranged on the bottom stored inside warehouse 1, by detecting the inner remaining agstone amount of limestone powder bin, and the balance information of agstone is transferred to surplus controller 6, surplus controller 6 compares according to the balance information of the agstone received and the Margin threshold pre-set, when the balance information of agstone is less than the Margin threshold pre-set, judge to need to clean remaining agstone, now, surplus controller 6 sends cleaning signal to dust cleaner 7, dust cleaner 7 cleans the slot end to trapezoidal back cover 2 to remaining agstone, so that the agstone in limestone powder bin exports clean, avoid agstone to be deposited in limestone powder bin inwall and cause waste, if judged result is the balance information of agstone when being more than or equal to default Margin threshold, then do not need cleaning.
Wherein, the dust cleaner 7 be arranged in lime powder bin comprises expansion link and is arranged on the jamb duster of expansion link end, dust cleaner 7 can rotate along limestone powder bin inwall, when dust cleaner 7 needs to clear away remote agstone, automatically can open expansion link, jamb duster can clean the agstone piled up in limestone powder bin rapidly.
In addition, surplus detector 5 can also judge whether to need to be input into agstone in limestone powder bin according to the balance information of the agstone received; If desired, surplus controller 6 sends transmission charging control signal to the apparatus for feeding of outside, and the transmission charging control signal that person skilled receives according to the apparatus for feeding of outside, carries agstone in limestone powder bin.
Limestone powder bin also comprises desicator; Desicator is arranged on and stores warehouse inside, stores desiccant in desicator.
Store enough desiccant in above-mentioned desicator, avoid agstone to make moist generation chemical reaction.
Store warehouse inside and can install multiple desicator, multiple desicator can disperse to be arranged on that to store warehouse inner, can the desiccant of storing bulk or the desiccant of independent packaging in each desicator, changes desiccant every predetermined amount of time.
In the limestone powder bin that the utility model embodiment provides, this limestone powder bin comprises: store warehouse, trapezoidal back cover, output control setup and multiple feedway, the wide mouth end sealing of trapezoidal back cover is arranged on the bottom storing warehouse, multiple feedway dispersions are arranged on the slot end of trapezoidal back cover, output control setup is installed on a conveyor, and the output of the agstone that metering and conveying device exports also controls the agstone amount exported.This limestone powder bin is provided with trapezoidal back cover bottom storage warehouse, is trapezoidally unfavorable for dust accumulation, can export clean by the agstone stored bottom warehouse; Output control setup accurately can calculate the output of agstone, so not only avoid limestone powder bin dust accumulation, also can come accurately to export agstone according to quantity according to the demand of agstone, decrease because dust accumulation and output accurately cannot estimate the agstone waste caused.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should described be as the criterion with the protection domain of claim.
Claims (10)
1. a limestone powder bin, is characterized in that, described limestone powder bin comprises: store warehouse, trapezoidal back cover, output control setup and multiple feedway;
The wide mouth end sealing of described trapezoidal back cover is arranged on the bottom of described storage warehouse;
Described multiple feedway dispersion is arranged on the slot end of described trapezoidal back cover;
Described output control setup is arranged on described feedway, measures the output of the agstone that described feedway exports.
2. limestone powder bin according to claim 1, is characterized in that, described storage warehouse comprises: cylindrical stored tank and trapezoidally to bind;
Described trapezoidal wide mouth end sealing of binding is arranged on the top of described cylindrical stored tank.
3. limestone powder bin according to claim 2, is characterized in that, the described trapezoidal slot end bound is provided with inlet point, and described inlet point is configured with capping, not to inlet point described in described lidstock during described storage warehouse charging.
4. limestone powder bin according to claim 1, is characterized in that, described feedway comprises feeding port and delivery pipe;
The upper end of described feeding port is arranged on the slot end of described trapezoidal back cover, and the lower end of described feeding port is connected with described delivery pipe.
5. limestone powder bin according to claim 1, is characterized in that, described feeding port comprises: cylindrical feed cylinder and trapezoidal feeding port;
The upper end of described cylindrical feed cylinder is arranged on the slot end of described trapezoidal back cover;
The wide mouth end sealing of described trapezoidal feeding port is arranged on the lower end of described cylindrical feed cylinder, and the slot end of described trapezoidal feeding port is connected with described delivery pipe.
6. limestone powder bin according to claim 4, is characterized in that, described output control setup comprises control cock and metering device;
Described control cock is arranged on the position near described feeding port on described delivery pipe;
Described metering device is arranged on the downside of the described control cock that described delivery pipe is installed.
7. limestone powder bin according to claim 6, is characterized in that, described output control setup also comprises measurement controller;
Described measurement controller is connected with described control cock and described metering device respectively, receives the output of the agstone that described metering device sends, controls opening or closing of described control cock.
8. limestone powder bin according to claim 1, is characterized in that, described limestone powder bin also comprises surplus detector, surplus controller and dust cleaner;
Described surplus detector, described surplus controller and described dust cleaner are installed in the bottom inside described storage warehouse;
Described surplus detector is connected with described surplus controller, and the balance information of detection is transferred to described surplus controller;
Described surplus controller is connected with described dust cleaner, controls the slot end that remaining agstone is swept to described trapezoidal back cover by described dust cleaner.
9. limestone powder bin according to claim 8, is characterized in that, described surplus controller is also connected with the apparatus for feeding of outside, and transmission charging control signal gives the apparatus for feeding of described outside.
10. limestone powder bin according to claim 1, is characterized in that, described limestone powder bin also comprises desicator;
It is inner that described desicator is arranged on described storage warehouse, stores desiccant in described desicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520764025.9U CN205023225U (en) | 2015-09-29 | 2015-09-29 | Limestone powder chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520764025.9U CN205023225U (en) | 2015-09-29 | 2015-09-29 | Limestone powder chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205023225U true CN205023225U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520764025.9U Expired - Fee Related CN205023225U (en) | 2015-09-29 | 2015-09-29 | Limestone powder chamber |
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| CN (1) | CN205023225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107140333A (en) * | 2017-06-30 | 2017-09-08 | 大唐环境产业集团股份有限公司 | A kind of limestone powder bin |
-
2015
- 2015-09-29 CN CN201520764025.9U patent/CN205023225U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107140333A (en) * | 2017-06-30 | 2017-09-08 | 大唐环境产业集团股份有限公司 | A kind of limestone powder bin |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20200929 |