CN102225588B - Outside vessel cement stirring mixer with bottom extention - Google Patents
Outside vessel cement stirring mixer with bottom extention Download PDFInfo
- Publication number
- CN102225588B CN102225588B CN 201110092445 CN201110092445A CN102225588B CN 102225588 B CN102225588 B CN 102225588B CN 201110092445 CN201110092445 CN 201110092445 CN 201110092445 A CN201110092445 A CN 201110092445A CN 102225588 B CN102225588 B CN 102225588B
- Authority
- CN
- China
- Prior art keywords
- sealing
- shaft
- bucket
- cement mixing
- packing seal
- 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.)
- Active
Links
Images
Landscapes
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention relates to an outside vessel cement stirring mixer with a bottom extention, comprising a stirring motor, a stirring shaft, a stirring paddle connected with the top of the stirring shaft, a discharging hole of an agitating vessel, a discharging cylinder and a sealing device. The sealing device comprises a mechanical sealing assembly fixed at the bottom of the agitating vessel and a packing sealing assembly arranged under the mechanical sealing assembly, a first sealing cavity is arranged between the mechanical sealing assembly and the packing sealing assembly. The first sealing cavity is filled with water, and the pressure of the sealed water is larger than the pressure of the stirring medium in the agitating vessel. According to the invention, the problem that cement slurry enters in the sealing surface can be prevented well, so that the service life of the sealing member is prolonged. The outside vessel cement stirring mixer with the bottom extention has good technical effect.
Description
Technical field
The present invention relates to a kind of cement mixing blender, relate in particular to the outer cement mixing blender of bucket of shaft of a kind of end.
Background technology
One of key equipment of the outer cement solidification technology of bucket is the outer mixer of bucket, and the power drive system that stirs shaft seal and discharging opening is the core component of blender.
Shaft mode at the bottom of the outer mixer employing of the bucket shaft, the internal structure that can simplify agitator of this mode reduces the water for cleaning amount, and run stability can be good, and transmission system is stressed little, and the life-span is high, easy access.Yet this mode has but been brought the sealing problem of shaft.In general technology, the end, goes out sealing and generally adopts packing seal or mechanical seal, but in radioactive environment, and having tiny cement granules in the agitated medium, air-proof condition is abominable, does not allow sealing to occur leaking, so these sealing means are improper.Thereby, stir shaft seal and must satisfy the specific (special) requirements such as long-life, few replacing and easy-maintaining.
Chinese patent application numbers 200920144552.5, denomination of invention discloses the outer mixer of a kind of bucket for " the outer cylindrical mixer that stirs of bucket ", its outside the shaft of paddle assembly also cover connect the liquid assembly, be used for the liquid that collection spills from shaft.But this frame for movement is comparatively complicated, and, also do not solve up hill and dale the sealing problem of mixer.
In addition, among the prior art, the discharging opening of the outer mixer of described bucket is arranged in the hot cell, and the feed liquid that stirs enters in the curing bucket by discharging opening in blender.If equipment generation fault makes the outer mixer cisco unity malfunction of bucket, the major accident that can cause cement in blender, to solidify, so must consider the emergency operation of accident condition lower discharge port, guaranteeing can the interior cement mortar of emptying blender under the accident condition.
Summary of the invention
The present invention is directed to the not good shortcoming of sealing property of traditional agitator, the outer cement mixing blender of bucket of shaft of a kind of end is provided, described blender has good seal performance, easy to operate technological merit.
The present invention solves the problems of the technologies described above the technical scheme that adopts such as following description:
The outer cement mixing blender of bucket of shaft of a kind of end, comprise stirring motor, shaft, be connected to the paddle on shaft top, and agitator discharging opening, discharging cylinder and sealing device, described sealing device comprises the mechanical sealing assembly that is fixed on the agitator bottom and the packing seal assembly that is arranged on the mechanical sealing assembly below, be provided with the first seal chamber between the two, described the first seal chamber inner filling water, and the pressure of described sealing water is greater than the pressure of the agitated medium of agitator inside.
Further, preferred structure is, described mechanical sealing assembly comprises and is located at the rotating ring that rotates with oar in the paddle and is located at stationary ring on the stuffing-box, rotary dynamic seal between described rotating ring and the stationary ring, and described sealing water forms one deck liquid film at the contact-making surface of rotating ring and stationary ring.
Further, preferably structure is, described rotating ring is arranged on the rotating seat, and described rotating seat is fixed on paddle inside, and the upper end of described rotating seat and paddle internal interface synapsis are provided with the O RunddichtringO.
Further, preferred structure is that by the O RunddichtringO sealing of rotating seat side, described stationary ring and packing seal assembly are by the O RunddichtringO sealing of packing seal assembly side between described rotating ring and the rotating seat.
Further, preferred structure is that the sealing surface of described rotating ring and stationary ring is wide.
Further, preferred structure is that described packing seal component internal is filled with flexible graphite material.
Further, preferred structure is, described packing seal assembly comprises packing seal assembly and lower packing seal assembly, is provided with the second seal chamber between packing seal assembly and the lower packing seal assembly on described, the inner compressed air of introducing of described the second seal chamber.
Further, preferred structure is, the compressed-air actuated pressure of described the second seal chamber inside is greater than the sealing hydraulic pressure of described the first seal chamber inside, utilizes the testing result to the compressed air air pressure change, and the sealing condition of sealing device is detected in real time.
Further, preferably structure is, the discharging opening of described mixer is arranged on inside, hot cell, and described discharging cylinder is arranged on the proparea in hot cell, is provided with the stroke detection system be used to the valve switch situation of obtaining discharging opening in the outside, hot cell.
Further, preferred structure is also to be provided with the manual-operated emergent device.
The present invention has following beneficial effect after having taked above-mentioned technical problem:
The first, the compound sealing structure form of mechanical sealing assembly and packing seal assembly is adopted in the sealing of the outer mixer shaft of bucket of end shaft, and mechanical dynamic seal and packing seal combine, and stop cement mortar to enter sealing surface, to prolong the life-span of seal.
The second, the discharging cylinder is arranged at the proparea, hot cell, makes things convenient for regular maintenance.And, the stroke monitoring system is set outside the hot cell, obtain the actual switch situation of the valve of discharging opening.
The 3rd, the manual-operated emergent device is set, in the state of accident can emptying blender in cement mortar, have preferably technique effect.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described in detail, so that above-mentioned advantage of the present invention is clearer and more definite.
Fig. 1 is the main body cutaway view of the outer cement mixing blender of bucket of the end of the present invention shaft;
Fig. 2 is the amplification view of sealing device of the outer cement mixing blender of bucket of the end of the present invention shaft;
Fig. 3 is the cutaway view of mechanical sealing assembly of the outer cement mixing blender of bucket of invention end shaft.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
Fig. 1 is the main body cutaway view of the outer cement mixing blender of bucket of the end of the present invention shaft.
As shown in Figure 1, the outer cement mixing blender of bucket of shaft of the described end, the paddle 4 that comprises stirring motor, shaft and be connected to the shaft top, described paddle 4 is arranged on the bottom of a cylinder agitator 3, and, sidewall at described cylinder agitator 3 is provided with a discharging opening 2, solidifies bucket one of the lower end of discharging opening placement, and the agitated medium that stirs (feed liquid/cement mortar) enters into curing bucket inside by discharging opening in blender.And described discharging opening 2 is located at the inside in hot cell, and discharging cylinder 1 passes through wall-punching equipment and is arranged on the proparea in hot cell, and wherein, described discharging opening 2 is controlled unlatching and the closure state of its valve by discharging cylinder 1.
During normal operation, paddle 4 stirs material at cylinder agitator 3, and discharging cylinder 1 is in inflated condition, and discharging opening 2 is closed; During discharging, paddle 4 slowly runs, 1 venting of discharging cylinder, and discharging opening 2 is opened, and the material that stirs is poured into and is solidified in the bucket.Discharge cuts out discharging opening 2 after finishing.
In addition, be provided with sealing device 5 in the bottom of described cylinder agitator, comprise the mechanical sealing assembly and the packing seal assembly that are used in combination mutually.
Fig. 2 is the amplification view of sealing device of the outer cement mixing blender of bucket of the end of the present invention shaft; Fig. 3 is the cutaway view of mechanical sealing assembly of the outer cement mixing blender of bucket of invention end shaft.
As shown in the figure, described mechanical sealing assembly comprises rotating seat 6, power transmission shaft 7, rotating ring 8, stationary ring 9, the first sealed chamber 10, stuffing-box 13 and motor support base 12.
Wherein, described rotating seat 6 is located in the paddle 4 and with paddle and rotates, and is provided with rotating ring 8 in rotating seat 6 inside, and described stationary ring 9 is arranged on the stuffing-box 13.
Between packing seal assembly 11 and rotating ring 8 and stationary ring 9, be provided with the first sealed chamber 10, be full of the water of certain pressure in sealed chamber inside, rotary dynamic seal between described rotating ring and the stationary ring, and, also be provided with spring, described rotating ring 8 and stationary ring 9 rely on the effect of spring and sealing water, and at contact-making surface formation one deck liquid film as thin as a wafer of rotating ring 8 and stationary ring 9, this liquid film reaches certain sealing effectiveness.
And the pressure of described sealing water is greater than the pressure at the agitated medium of cylinder agitator inside, therefore, and the agitator internal leakage that described sealing water can only be outside chamber, and then between the end face of mechanical seal, form moisture film and prevented that agitated medium from entering seal face; And, by above-mentioned design, also the dirt that enters seal face can be flow back to agitator, thereby avoid radwaste to leak into the external world, reach final sealing purpose.
Among an embodiment, the upper end of described rotating seat 6 and paddle 4 internal interface synapsis arrange O type circle and realize static seal; Realize static seal by O type circle in the rectangular channel of rotating seat side between described rotating ring 8 and the rotating seat 6; Realize static seal by O type circle on the step surface of stuffing-box side between described stationary ring 9 and the stuffing-box.
And among preferred embodiment, described rotating ring 8 and stationary ring 9 sealing surfaces adopt wide structure.The cutting edge effect that its major advantage produces when being to utilize it to rotate prevents that cement from hardening on its faying face.
Among the preferred embodiment, described packing seal assembly 11 is double-deck filling-material structure.
As mentioned above, the interior introducings sealing water of the first sealed chamber 10 between the packing seal of described upper strata and the mechanical seal form moisture film at the end face of mechanical sealing assembly and play the mechanical seal effect, and because water lubricated, can reduce the wearing and tearing of filler, improve service life.
And the present invention is provided with the second seal chamber between lower floor's packing seal and upper strata packing seal, the inner compressed air of introducing of described annular seal space, to seal water withstands in the top seal chamber, wherein, described compressed-air actuated pressure is slightly larger than the hydraulic pressure of described sealing water, thereby produces preferably sealing effectiveness.And the present invention can also by the measurement of the compressed-air actuated air pressure change of the second seal chamber, detect the failure conditions of filler.
The present invention utilizes sealing water to carry out end face seal after having taked technique scheme, prevents that agitated medium from entering seal face, does not reveal thereby reach the radwaste sealing.
And, mechanical sealing assembly is in conjunction with the packing seal assembly of bottom, introduce compressed air in the packing seal assembly, withstand the sealing water in the mechanical sealing assembly, guarantee the mechanical seal effect, when mechanical sealing assembly lost efficacy, described packing seal assembly played the effect of auxiliary seal simultaneously, reached the effect of sealing double shield.
And, in the life-span that the design of compound sealing structure that described mechanical seal combines with packing seal has improved sealing device, satisfy the life requirements that sealing device time between overhauls(TBO) changes.
In addition, the discharging opening of described mixer is arranged on inside, hot cell, described discharging cylinder passes through wall-punching equipment and is arranged on the proparea in hot cell, is provided with the stroke detection system be used to the valve switch situation of obtaining discharging opening in the outside, hot cell, and then obtains the actual switch situation of discharging opening valve.
And the present invention imports hot cell through wall-punching equipment with power with the discharging cylinder, has reduced maintenance difficulties, has had preferably technique effect.
And, this device also is provided with the manual-operated emergent device, described manual-operated emergent device is arranged on above the discharging cylinder, when breaking down, open the emergency set on the discharging cylinder, discharging opening is opened, and can take mud in the emptying blender of setting stick stirring motor, prevent that mud from solidifying the reluctant accident that causes in blender, the comparatively reliable end, solved the discharge problem under the accident condition.
It should be noted that; above-mentioned specific embodiment only is exemplary; under above-mentioned instruction of the present invention, those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in protection scope of the present invention.
It will be understood by those skilled in the art that top specific descriptions just in order to explain purpose of the present invention, is not for restriction the present invention.Protection scope of the present invention is limited by claim and equivalent thereof.
Claims (8)
1. the outer cement mixing blender of bucket of shaft at the bottom of a kind, comprise stirring motor, shaft, be connected to the paddle on shaft top, and agitator discharging opening, discharging cylinder and sealing device, it is characterized in that, described sealing device comprises the mechanical sealing assembly that is fixed on the agitator bottom and the packing seal assembly that is arranged on the mechanical sealing assembly below, be provided with the first seal chamber between the two, described the first seal chamber inner filling water, and the pressure of described sealing water is greater than the pressure of the agitated medium of agitator inside; Described mechanical sealing assembly comprises and is located at the rotating ring that rotates with oar in the paddle and is located at stationary ring on the stuffing-box, rotary dynamic seal between described rotating ring and the stationary ring, and described sealing water forms one deck liquid film at the contact-making surface of rotating ring and stationary ring; Described packing seal assembly comprises packing seal assembly and lower packing seal assembly, is provided with the second seal chamber between packing seal assembly and the lower packing seal assembly on described, the inner compressed air of introducing of described the second seal chamber.
2. the outer cement mixing blender of bucket of the end according to claim 1 shaft, it is characterized in that, described rotating ring is arranged on the rotating seat, and described rotating seat is fixed on paddle inside, and the upper end of described rotating seat and paddle internal interface synapsis are provided with the O RunddichtringO.
3. the outer cement mixing blender of bucket of the end according to claim 1 and 2 shaft, it is characterized in that, by the O RunddichtringO sealing of rotating seat side, described stationary ring and packing seal assembly are by the O RunddichtringO sealing of packing seal assembly side between described rotating ring and the rotating seat.
4. the outer cement mixing blender of bucket of the end according to claim 3 shaft is characterized in that, the sealing surface of described rotating ring and stationary ring is wide.
5. the outer cement mixing blender of bucket of the end according to claim 1 shaft is characterized in that, described packing seal component internal is filled with flexible graphite material.
6. the outer cement mixing blender of bucket of the end according to claim 5 shaft is characterized in that, the compressed-air actuated pressure of described the second seal chamber inside is greater than the sealing hydraulic pressure of described the first seal chamber inside.
7. the outer cement mixing blender of bucket of the end according to claim 1 shaft, it is characterized in that, the discharging opening of described mixer is arranged on inside, hot cell, described discharging cylinder is arranged on the proparea in hot cell, is provided with the stroke detection system be used to the valve switch situation of obtaining discharging opening in the outside, hot cell.
8. the outer cement mixing blender of bucket of the end according to claim 7 shaft is characterized in that, also is provided with the manual-operated emergent device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110092445 CN102225588B (en) | 2011-04-13 | 2011-04-13 | Outside vessel cement stirring mixer with bottom extention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110092445 CN102225588B (en) | 2011-04-13 | 2011-04-13 | Outside vessel cement stirring mixer with bottom extention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102225588A CN102225588A (en) | 2011-10-26 |
| CN102225588B true CN102225588B (en) | 2013-03-06 |
Family
ID=44806605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110092445 Active CN102225588B (en) | 2011-04-13 | 2011-04-13 | Outside vessel cement stirring mixer with bottom extention |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102225588B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406997A (en) * | 2013-08-28 | 2013-11-27 | 苏州长玖节能科技服务有限公司 | Novel concrete agitator |
| CN108145862A (en) * | 2017-10-09 | 2018-06-12 | 佛山赛唯莱特智能设备有限公司 | A kind of novel cement mortar mixing apparatus |
| CN107650268A (en) * | 2017-10-09 | 2018-02-02 | 胡小君 | A kind of cement mortar mixing apparatus |
| CN108099018A (en) * | 2017-10-09 | 2018-06-01 | 佛山赛唯莱特智能设备有限公司 | A kind of follow-on cement mortar mixing apparatus |
| CN114012893B (en) * | 2021-10-29 | 2023-09-12 | 中国核电工程有限公司 | Stirring mixer and cement curing system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106705U (en) * | 1991-02-24 | 1992-06-10 | 胡乔荣 | Slurry stirring machine |
| CN2172376Y (en) * | 1993-04-29 | 1994-07-20 | 张秋翔 | Double axle sleeve mechanical sealing device |
| IL107722A (en) * | 1992-11-25 | 1998-02-22 | Khashoggi E Ind | Hydraulically settable compositions, articles of manufacture made therefrom and methods for manufacturing same |
| CN2319196Y (en) * | 1997-11-27 | 1999-05-19 | 袁建南 | Concrete agitator |
| CN2541158Y (en) * | 2001-08-07 | 2003-03-26 | 王作良 | Concrete-mixer |
| RU2254232C1 (en) * | 2003-11-28 | 2005-06-20 | ООО "ВНИИСТРОМ-НВ" (Общество с ограниченной ответственностью "Внедрение, научные исследования, испытания строительных материалов - Новый век") | Mixer for producing of foam concrete mixture |
| CN2897446Y (en) * | 2006-02-24 | 2007-05-09 | 中国石油天然气集团公司 | Horizontal spiral continuouslly-washing centrifuge with inner sealed |
-
2011
- 2011-04-13 CN CN 201110092445 patent/CN102225588B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106705U (en) * | 1991-02-24 | 1992-06-10 | 胡乔荣 | Slurry stirring machine |
| IL107722A (en) * | 1992-11-25 | 1998-02-22 | Khashoggi E Ind | Hydraulically settable compositions, articles of manufacture made therefrom and methods for manufacturing same |
| CN2172376Y (en) * | 1993-04-29 | 1994-07-20 | 张秋翔 | Double axle sleeve mechanical sealing device |
| CN2319196Y (en) * | 1997-11-27 | 1999-05-19 | 袁建南 | Concrete agitator |
| CN2541158Y (en) * | 2001-08-07 | 2003-03-26 | 王作良 | Concrete-mixer |
| RU2254232C1 (en) * | 2003-11-28 | 2005-06-20 | ООО "ВНИИСТРОМ-НВ" (Общество с ограниченной ответственностью "Внедрение, научные исследования, испытания строительных материалов - Новый век") | Mixer for producing of foam concrete mixture |
| CN2897446Y (en) * | 2006-02-24 | 2007-05-09 | 中国石油天然气集团公司 | Horizontal spiral continuouslly-washing centrifuge with inner sealed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102225588A (en) | 2011-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102225588B (en) | Outside vessel cement stirring mixer with bottom extention | |
| CN102704556A (en) | Water inlet valve | |
| CN107605496A (en) | A kind of tail sealing device of shield | |
| CN202071210U (en) | Out-drum cement stirring mixer with shaft extending out from bottom | |
| CN106313314A (en) | Spiral type unloading device for planetary mixer | |
| CN111203984A (en) | Attached rotary sealing mixer truck | |
| CN114012893B (en) | Stirring mixer and cement curing system | |
| CN201257712Y (en) | Mixing machine with external bearings | |
| CN213868989U (en) | Bowl-type buckle cover for preventing slurry leakage | |
| CN210593524U (en) | Discharge door of concrete storage hopper | |
| CN209135336U (en) | A kind of sealing structure suitable for ice cream maker stirring transmission mechanism | |
| CN208594461U (en) | A kind of loading machine stirring bucket convenient for discharging | |
| CN218023356U (en) | Steel drum with sealing function | |
| CN206904268U (en) | A kind of gate valve | |
| CN221031493U (en) | Concrete hopper capable of preventing materials from leaking | |
| CN216637635U (en) | Rotary sealing device for stirring tank wheel | |
| CN217107020U (en) | Rotatable gate structure of screw machine | |
| CN202176728U (en) | Swing plate type ash discharging valve | |
| CN212801449U (en) | Sealing device for moving shaft | |
| CN214171381U (en) | Feed valve for quickly jetting materials | |
| CN207598923U (en) | Stir vesselseals stop gauge in a kind of bottom | |
| CN107261892A (en) | A kind of agitating device pair cylinder discharge devices | |
| CN102032789B (en) | Using method of closed-type discharging device | |
| CN206463908U (en) | A kind of sealing structure of discharging door of mixer | |
| CN113819240B (en) | Stirring shaft end structure for pumping mechanism of pumping machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |