CN103264447A - Novel environment-protective premixing mortar production apparatus - Google Patents

Novel environment-protective premixing mortar production apparatus Download PDF

Info

Publication number
CN103264447A
CN103264447A CN2013101175456A CN201310117545A CN103264447A CN 103264447 A CN103264447 A CN 103264447A CN 2013101175456 A CN2013101175456 A CN 2013101175456A CN 201310117545 A CN201310117545 A CN 201310117545A CN 103264447 A CN103264447 A CN 103264447A
Authority
CN
China
Prior art keywords
feed bin
scale hooper
bearing plate
bone
novel environment
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.)
Pending
Application number
CN2013101175456A
Other languages
Chinese (zh)
Inventor
杨根宏
李正茂
杨松林
夏素平
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.)
SHENZHEN WEIHAI BUILDING MATERIAL CO Ltd
Original Assignee
SHENZHEN WEIHAI BUILDING MATERIAL 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 SHENZHEN WEIHAI BUILDING MATERIAL CO Ltd filed Critical SHENZHEN WEIHAI BUILDING MATERIAL CO Ltd
Priority to CN2013101175456A priority Critical patent/CN103264447A/en
Publication of CN103264447A publication Critical patent/CN103264447A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

The invention provides a novel environment-protective premixing mortar production apparatus, which comprises a container type frame, a material storage system fixed on the upper part of the container type frame, a weighing system connected to and under the material storage system, a stirring system connected to and under the weighing system, and an auxiliary system. Compared with prior art, the apparatus is provided with high integration; the complete apparatus can all be used and transported in a standard 12 foot high container. The apparatus also is provided with advantages like fast installation and dismounting, low energy consumption, high security in wild operation, resistance to adverse weather, effective environment protection and small land occupation.

Description

A kind of novel environment friendly premixing mortar production device
Technical field
The present invention relates to a kind of concrete production equipment, specifically refer to a kind of job site do not have the dust environmental protection mix mortar processed, with using with the equipment of mixing.
Background technology
At present, domestic mortar mainly contains three kinds of modes by production technology: the one, and wet mixing mortar, the 2nd, packed dry-mixed mortar, the 3rd, building site mixer centralized mixing mortar.First kind of mode of production be by mixing plant centralized mixing, and general side amount is bigger, and the building site must use up within a certain period of time, mortar performance had relatively high expectations, as setting time is long, protect plasticity is good etc.; Because setting time is longer, occurs phenomenons such as sagging easily; But use kind single, most of rate of capacity utilization is lower.Second kind of mode of production be by dry-mixed mortar manufacturing enterprise preparation dry-mixed mortar, and the packed building site of transporting to adds water again and mixes and stirs use, and advantage is to use flexibly, and what what mix with, A wide selection of colours and designs; Shortcoming is to need to use packaging bag, and the unpacking process can produce pollutions such as dust, and left a large amount of packings can cause the waste of resource simultaneously.The third mode of production has overcome the deficiency of preceding two kinds of modes of production; But because on-the-spot artificial the stirring controlled inaccurate to sand coarse aggregate ratio and ratio of mud weighing proportioning, cause mortar quality fluctuation and cost control unreasonable, the dust that on-the-spot open stirring brings and the influence of NOISE ON ENVIRONMENT are also bigger, many regional center government department is all actively putting into effect corresponding rules, building site centralized mixing mortar is forbidden in regulation energetically.
Summary of the invention
In view of the foregoing, the object of the present invention is to provide a kind of environmental protection premixing mortar production device of novel no dust pollution, can realize that the scene of many strength grades, many kinds mortar is mixed and stirred, floor space is little, and is flexible to operation, with mixing with usefulness; And solve present wet mixing mortar, packed dry-mixed mortar, building site centralized mixing mortar in construction, run into such as mortar sagging, dust pollution, wastage of material, mortar quality instability, problem that floor space is bigger.
The technical solution used in the present invention is:
A kind of novel environment friendly premixing mortar production device, comprise: the container-type frame, be fixedly arranged on the aggregate-storing system of container-type upper rack, be connected with aggregate-storing system and be positioned at the Weighing system of its below, be connected with Weighing system and be positioned at the stirring system of its below; Also comprise accessory system.
Further, be provided with feed bin gripper shoe, feed bin bearing plate, Weighing system bearing plate, mixer bearing plate from top to bottom successively on the described container-type frame; Container-type frame and feed bin gripper shoe, feed bin bearing plate, Weighing system bearing plate, mixer bearing plate are integrated as a whole with aggregate-storing system, Weighing system, stirring system and accessory system.
Described aggregate-storing system comprises at least one feed bin and following level-sensing device, fluidizer, feed bin butterfly valve, dust return pipe, goes up level-sensing device, top, storehouse pressure valve, feed pipe; Be provided with top, storehouse pressure valve at the top of described feed bin and reach level-sensing device; The feed bin bottom is provided with fluidizer and feed bin butterfly valve; Dust return pipe upper end and feed pipe upper end all are connected with the feed bin top; Described feed bin bottom is fixedly arranged on the feed bin bearing plate.
Described Weighing system is made up of bone/powder scale hooper, liquid scale hooper, bone/powder discharging butterfly valve, feed liquor switch valve, fluid switch valve, scale hooper gripper shoe, LOAD CELLS, weight transmitter, batch box discharge duct; Described liquid scale hooper links to each other with bone/powder scale hooper and is positioned at its below; Bone/powder discharging butterfly valve is located on the batch box discharge duct and is positioned at liquid scale hooper below; Bone/powder scale hooper is fixedlyed connected with the scale hooper gripper shoe; LOAD CELLS is located on the Weighing system bearing plate, and the scale hooper gripper shoe is located on the LOAD CELLS; The batch box discharge duct is connected with liquid scale hooper bottom.
Bone/powder scale hooper is communicated with feed bin by dust return pipe.
Described stirring system comprises mixer, and described mixer is positioned at mixer bearing plate top.
Be communicated with by the batch box discharge duct between stirring system and the Weighing system.
Described accessory system comprises baric systerm, vibration insulating system, water system, additive supply system.
Described baric systerm is made up of air compressor machine, air accumulator, source of the gas filter, air pressure regulator and corresponding pipe, joint; Baric systerm is communicated with the fluidizer of feed bin, bone/powder scale hooper respectively; Vibration insulating system is made up of snubber base, shock-absorbing spring or rubber, support connector; Water system, additive supply system are made up of hydraulic pump, water tank and additive tank, and water system, additive supply system all are connected with the liquid scale hooper.
Beneficial effect of the present invention: this equipment is a kind of portable environmental protection mortar mixing building, can be according to side's amount of producing needs, with using with mixing; The match ratio of the embedded various mortar kinds of this apparatus control system and label, only need a key to select to prepare the production wet mixing mortar as requested during produced on-site, also can require to adjust flexibly the mortar prescription according to the required mortar in scene simultaneously, can produce ordinary mortar, also can produce extraordinary mortar, satisfy all kinds of site constructions to the requirement of mortar equipment.Compare with prior art, this device has integrated level height, installation and removal efficiently, low energy consumption, field operation high security, anti-harsh weather and effectively protects environment, advantage that floor space is little.
Description of drawings
Fig. 1 is the main schematic diagram of looking of the present invention.
The specific embodiment
In order to make those skilled in the art person understand this New Scheme better, the present invention is described in further detail below in conjunction with drawings and embodiments.
The present invention includes mechanical system and control system.
As shown in Figure 1, be mechanical system of the present invention, it comprises container-type frame 1, and the aggregate-storing system that is fixedly arranged on container-type frame 1 top, be connected with aggregate-storing system and be positioned at the Weighing system of its below, be connected with Weighing system and be positioned at the stirring system of its below; Also comprise accessory system.
Be provided with feed bin gripper shoe 2, feed bin bearing plate 3, Weighing system bearing plate 4, mixer bearing plate 5 on the described frame 1 from top to bottom successively.
Described aggregate-storing system comprises at least four feed bins 6 and following level-sensing device 7, fluidizer 8, feed bin butterfly valve 9, dust return pipe 10, goes up level-sensing device 11, top, storehouse pressure valve 12, feed pipe 13; Be provided with top, storehouse pressure valve 12 at the top of described feed bin and reach level-sensing device 11; The feed bin bottom is provided with fluidizer 8 and feed bin butterfly valve 9; The upper end of dust return pipe 10 and feed pipe 13 all is connected with the feed bin top; Described feed bin bottom is fixedly arranged on the feed bin bearing plate 3.Two set on the frame 1 feed bin gripper shoes 2 tilt to prevent feed bin 6.Material is stored in the feed bin 6 via feed pipe 13, in reinforced and discharge process, takes place for preventing the wharf explosion accident, and the surge bin external and internal pressure is provided with top, storehouse pressure valve 12 on the feed bin top.The main purpose of dust return pipe 10 is to collect for the particulate dust that produces in the process of will feeding in raw material to enter bone/powder scale hooper 14, to economize in raw materials, prevents that the job site from producing dust pollution.During system works, judged whether to stop to feed in raw material by last level-sensing device 11, feedback signal is passed to control system, following level-sensing device 7 judges whether to need to increase raw material, feedback signal is passed to control system, according to the feed bin volume feed bin material clout situation is judged.Feed bin 6 taperings are provided with 6-8 fluidizer 8, to prevent that material has some setbacks in the discharge process.
Described Weighing system is made up of bone/powder scale hooper 14, liquid scale hooper 15, bone/powder discharging butterfly valve 16, feed liquor switch valve (not shown), fluid switch valve (not shown), scale hooper gripper shoe 17, LOAD CELLS 18, weight transmitter, batch box discharge duct 19; Described liquid scale hooper links to each other with bone/powder scale hooper and is positioned at its below; Bone/powder discharging butterfly valve 16 is located on the batch box discharge duct 19 and is positioned at liquid scale hooper 15 belows; Bone/powder scale hooper 14 is fixedlyed connected with scale hooper gripper shoe 17; LOAD CELLS 18 is located on the Weighing system bearing plate 4, and scale hooper gripper shoe 17 is located on the LOAD CELLS 18; Batch box discharge duct 19 is connected with liquid scale hooper 15 bottoms.Feed liquor switch valve, fluid switch valve lay respectively at the upper and lower of liquid scale hooper 15.
In order to simplify structure, the weighing of bone/powder weighing and water, additive is become one, bone/powder scale hooper 14 is used for weighing bone, powder (cement, sandstone material, flyash etc.) weight, and is provided with fluidizer to prevent the remaining prescription quality that influences of material; Liquid scale hooper 15 is used for weighing water and weight of additive.Bone/powder scale hooper 14 adopts pyramidal structure, and its bottom is furnished with liquid scale hooper 15, and water and additive enter by the entrance on the liquid scale hooper 15, and the outlet outflow from the bottom after weighing finishes enters mixer.Bone, powder charging aperture 20 are arranged and return dirt mouth 21 in bone/powder scale hooper top layout, link to each other with dust return pipe 10 with the discharging opening of feed bin 6.Bone/the discharging opening of powder scale hooper 14 links to each other with the entrance of mixer.In order to increase systemic-function, can't satisfy under the situation that multiple bone, powder deposit in feed bin quantity, other bones, powder kind can be reserved charging aperture and add material bin and carry out weighing.For each bone, powder can be discharged into fully in the mixer, be provided with fluidizer at the awl wall of bone/powder scale hooper 14, after weighing finishes, be blown into the compressed air of certain pressure by the valve of fluidizer, there are not remnants to guarantee powder.
Described stirring system comprises mixer 22, and described mixer 22 is positioned at mixer bearing plate 5 tops, can establish snubber base 23 between mixer 22 and mixer bearing plate 5, to reduce to vibrate the influence to other system.In order to strengthen the product adaptation ability, increase the production kind, reserved rubble entrance 24 on the mixer 22.It is planetary that the mixing arm forms of motion adopts, its stirring efficiency height, batch mixing is even, can be in 2 minutes full and uniform mixed material,
Be communicated with by batch box discharge duct 19 between stirring system and the Weighing system.
Described accessory system comprises baric systerm, vibration insulating system, water system, additive supply system.
Described baric systerm is made up of air compressor machine 25, air accumulator, source of the gas filter, air pressure regulator and corresponding pipe, joint; Realization provides the compressed air medium to feed bin discharge valve, scale hooper discharge valve, feed bin and scale hooper fluidizer etc., guarantees each parts operate as normal.Vibration insulating system mainly is made of snubber base, shock-absorbing spring or rubber, support connector etc., realize the purpose that vibration source and system isolate, improve accuracy of weighing system and accuracy, improve system architecture stability, reduction or elimination vibration are to the destruction of other accurate devices.It is similar with additive supply system to supply water, and by hydraulic pump water or aqueous additive is transported to the liquid scale hooper from water tank and additive tank 26, again in scale hooper is transported to mixer.
Control system of the present invention mainly is made of PLC, touch-screen, analog-to-digital conversion module, LOAD CELLS and each executive component, and wherein PLC selects the FX3G of Mitsubishi series of products for use, and its stability is high, the control function is strong; Sensor comprises LOAD CELLS, each feed bin level-sensing device up and down; Executive component comprises sulfurator, two pumps (supplying water and aqueous additive), feed water valve and supplement valve, mixer motor, the mixer discharge valve of feed bin discharging butterfly valve, scale hooper discharging butterfly valve, feed bin and batch box etc.
Beneficial effect of the present invention is mainly reflected in: 1, at first from the direct economy interests, producing 100000 tons of mortars per year by every equipment calculates: 1. this project achievement in research can realize the dry-mixed mortar containerization, save 40 yuan/ton of packaging material, with the packing charges of saving 4,000,000 yuan, the dust pollution that energy conserves paper, minimizing unpacking simultaneously brings, effectively save the forest reserves, protected atmospheric environment; 2. save 10 yuan/ton of costs of transportation, will save 1,000,000 yuan of freights; 3. reduce waste of raw materials, with 10 tons of material savings (calculating according to waste 0.01%).More than amount to 5,000,000 yuan of annual cost savings.
Secondly say from social benefit that 2, the vast rural area of China, the quality of housing construction from far-off regions are generally lower, all fail to use dry-mixed mortar; House damage and the casualties situation of 512 violent earthquakes from the Wenchuan, the area violent earthquake of Gansu cajaput, the 5.7 grades of earthquakes in Yunnan, if the building in these areas can both be used dry-mixed mortar, if having, China can adapt to the dry-mixed mortar production equipment that use in these areas, so in face of disaster, our loss just will drop to minimum, and this will directly benefit China the general common people.
3, at last from operation use, the maintenance and repair aspect of equipment, 1. because equipment adopts the PLC control system of high reliability less trouble as the control kernel, equipment is not very high to operating personnel's requirement, only needs to get final product through simple training; 2. the product mechanization degree is higher, can effectively reduce cost of labor; 3. product integrated level height can all be contained in the container, and floor space is little, installs simply, and adaptability is strong; 4. last this achievement form adopts device context to stir, and with the form of mixing with usefulness, when reducing the mortar cost of transportation, usage ratio of equipment also improves greatly, has good economic benefits.

Claims (9)

1. novel environment friendly premixing mortar production device, it is characterized in that, comprising: the container-type frame is fixedly arranged on the aggregate-storing system of container-type upper rack, be connected with aggregate-storing system and be positioned at the Weighing system of its below, be connected with Weighing system and be positioned at the stirring system of its below; Also comprise accessory system.
2. a kind of novel environment friendly premixing mortar production device as claimed in claim 1 is characterized in that, is provided with feed bin gripper shoe, feed bin bearing plate, Weighing system bearing plate, mixer bearing plate on the described container-type frame from top to bottom successively; Container-type frame and feed bin gripper shoe, feed bin bearing plate, Weighing system bearing plate, mixer bearing plate are integrated as a whole with aggregate-storing system, Weighing system, stirring system and accessory system.
3. a kind of novel environment friendly premixing mortar production device as claimed in claim 1 or 2 is characterized in that, aggregate-storing system comprises at least one feed bin and following level-sensing device, fluidizer, feed bin butterfly valve, dust return pipe, goes up level-sensing device, top, storehouse pressure valve, feed pipe; Be provided with top, storehouse pressure valve at the top of described feed bin and reach level-sensing device; The feed bin bottom is provided with fluidizer and feed bin butterfly valve; Dust return pipe upper end and feed pipe upper end all are connected with the feed bin top; Described feed bin bottom is fixedly arranged on the feed bin bearing plate.
4. a kind of novel environment friendly premixing mortar production device as claimed in claim 1 or 2, it is characterized in that Weighing system is made up of bone/powder scale hooper, liquid scale hooper, bone/powder discharging butterfly valve, feed liquor switch valve, fluid switch valve, scale hooper gripper shoe, LOAD CELLS, weight transmitter, batch box discharge duct; Described liquid scale hooper links to each other with bone/powder scale hooper and is positioned at its below; Bone/powder discharging butterfly valve is located on the batch box discharge duct and is positioned at liquid scale hooper below; Bone/powder scale hooper is fixedlyed connected with the scale hooper gripper shoe; LOAD CELLS is located on the Weighing system bearing plate, and the scale hooper gripper shoe is located on the LOAD CELLS; The batch box discharge duct is connected with liquid scale hooper bottom.
5. a kind of novel environment friendly premixing mortar production device as claimed in claim 4 is characterized in that, bone/powder scale hooper is communicated with feed bin by dust return pipe.
6. a kind of novel environment friendly premixing mortar production device as claimed in claim 1 or 2 is characterized in that described stirring system comprises mixer, and described mixer is positioned at mixer bearing plate top.
7. a kind of novel environment friendly premixing mortar production device as claimed in claim 4 is characterized in that, is communicated with by the batch box discharge duct between stirring system and the Weighing system.
8. a kind of novel environment friendly premixing mortar production device as claimed in claim 1 is characterized in that described accessory system comprises baric systerm, vibration insulating system, water system, additive supply system.
9. a kind of novel environment friendly premixing mortar production device as claimed in claim 8 is characterized in that, described baric systerm is made up of air compressor machine, air accumulator, source of the gas filter, air pressure regulator and corresponding pipe, joint; Baric systerm is communicated with feed bin, bone/powder weighing bucket, feed bin fluidizer respectively; Vibration insulating system is made up of snubber base, shock-absorbing spring or rubber, support connector; Water system, additive supply system are made up of hydraulic pump, water tank and additive tank, and water system, additive supply system all are connected with the liquid scale hooper through the feed liquor switch valve.
CN2013101175456A 2013-04-07 2013-04-07 Novel environment-protective premixing mortar production apparatus Pending CN103264447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013101175456A CN103264447A (en) 2013-04-07 2013-04-07 Novel environment-protective premixing mortar production apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013101175456A CN103264447A (en) 2013-04-07 2013-04-07 Novel environment-protective premixing mortar production apparatus

Publications (1)

Publication Number Publication Date
CN103264447A true CN103264447A (en) 2013-08-28

Family

ID=49008133

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013101175456A Pending CN103264447A (en) 2013-04-07 2013-04-07 Novel environment-protective premixing mortar production apparatus

Country Status (1)

Country Link
CN (1) CN103264447A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104493981A (en) * 2014-12-08 2015-04-08 深圳市为海建材有限公司 Environment-friendly mortar robot
WO2016101199A1 (en) * 2014-12-25 2016-06-30 深圳市为海建材有限公司 Environment-friendly mortar robot
JP2020142400A (en) * 2019-03-04 2020-09-10 阪神高速技術株式会社 Mobile batcher plant

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09220715A (en) * 1996-02-16 1997-08-26 Taisei Corp Production of mortar or concrete
JPH09314542A (en) * 1996-06-03 1997-12-09 Taisei Prefab Kk Miniature mortar plant
CN101380782A (en) * 2008-10-23 2009-03-11 陈忠勇 Movable premixing mortar production device
CN201776839U (en) * 2010-09-26 2011-03-30 北京振利高新技术有限公司 Vertical type mixing and continuous production device for dry powder sand slurry
CN102717439A (en) * 2012-06-29 2012-10-10 中联重科股份有限公司 Dry-mixed mortar main building system and dry-mixed mortar complete production unit comprising same
CN102990784A (en) * 2012-12-14 2013-03-27 三一重工股份有限公司 Wet-mixed mortar mixing station
CN203266935U (en) * 2013-04-07 2013-11-06 深圳市为海建材有限公司 Novel environment-friendly preblended mortar production equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09220715A (en) * 1996-02-16 1997-08-26 Taisei Corp Production of mortar or concrete
JPH09314542A (en) * 1996-06-03 1997-12-09 Taisei Prefab Kk Miniature mortar plant
CN101380782A (en) * 2008-10-23 2009-03-11 陈忠勇 Movable premixing mortar production device
CN201776839U (en) * 2010-09-26 2011-03-30 北京振利高新技术有限公司 Vertical type mixing and continuous production device for dry powder sand slurry
CN102717439A (en) * 2012-06-29 2012-10-10 中联重科股份有限公司 Dry-mixed mortar main building system and dry-mixed mortar complete production unit comprising same
CN102990784A (en) * 2012-12-14 2013-03-27 三一重工股份有限公司 Wet-mixed mortar mixing station
CN203266935U (en) * 2013-04-07 2013-11-06 深圳市为海建材有限公司 Novel environment-friendly preblended mortar production equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104493981A (en) * 2014-12-08 2015-04-08 深圳市为海建材有限公司 Environment-friendly mortar robot
CN104493981B (en) * 2014-12-08 2016-04-20 深圳市为海建材有限公司 Environment-friendlymortar mortar robot
WO2016101199A1 (en) * 2014-12-25 2016-06-30 深圳市为海建材有限公司 Environment-friendly mortar robot
JP2020142400A (en) * 2019-03-04 2020-09-10 阪神高速技術株式会社 Mobile batcher plant

Similar Documents

Publication Publication Date Title
CN104493981B (en) Environment-friendlymortar mortar robot
US9969103B2 (en) Environmental-friendly mortar mixing robot
CN103264447A (en) Novel environment-protective premixing mortar production apparatus
CN202826073U (en) Concrete mixing plant meeting requirements for environmental protection, energy conservation and high efficiency
CN103465380A (en) Mortar stirring station
US20210229322A1 (en) Containerized concrete batch plant
CN203266935U (en) Novel environment-friendly preblended mortar production equipment
CN106272979A (en) A kind of novel environment friendly premixing mortar production device
CN206765104U (en) Sunk type sandstone blending station
CN203004079U (en) Concrete mixing plant with vibratory mixing main machine
CN104309002A (en) Green building movable mortar mixing plant
CN204367177U (en) Environment-friendlymortar mortar robot
CN204122219U (en) A kind of mobile modularized discharge refuse washing and screening plant
CN102922605B (en) Mixing plant
CN103121242B (en) Concrete stirring system
CN202174648U (en) Novel light aggregate stirring machine
CN213221702U (en) Intelligent gypsum mortar production facility
CN204367174U (en) Novel environment friendly premixing mortar production device
CN201023278Y (en) Multi-functional environment protection type stirring station
CN210504514U (en) Fuel storage and conveying system for biomass direct combustion
CN112793004A (en) Novel environment-friendly energy-saving concrete mixing plant
CN207308556U (en) A kind of production line of gangue production waterproof roll
CN201626046U (en) Automatic flash transfer device and mixing material stirring equipment with thereof
CN102152401B (en) Vehicular thermal insulation wall material mixed production line
CN214871601U (en) Movable gypsum-based self-leveling material production and synthesis equipment

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130828