CN102836651A - Method for cyclically utilizing dissolved steam of solid sodium silicate - Google Patents

Method for cyclically utilizing dissolved steam of solid sodium silicate Download PDF

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Publication number
CN102836651A
CN102836651A CN2012103278448A CN201210327844A CN102836651A CN 102836651 A CN102836651 A CN 102836651A CN 2012103278448 A CN2012103278448 A CN 2012103278448A CN 201210327844 A CN201210327844 A CN 201210327844A CN 102836651 A CN102836651 A CN 102836651A
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CN
China
Prior art keywords
rotary spherical
spherical digester
pipeline
admission
steam
Prior art date
Application number
CN2012103278448A
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Chinese (zh)
Inventor
刘涛
周海波
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福建海能新材料有限公司
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Application filed by 福建海能新材料有限公司 filed Critical 福建海能新材料有限公司
Priority to CN2012103278448A priority Critical patent/CN102836651A/en
Publication of CN102836651A publication Critical patent/CN102836651A/en

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Abstract

The invention discloses a method for cyclically utilizing dissolved steam of solid sodium silicate. The method is characterized in that: after dissolving the solid sodium silicate completely in a high-temperature high-pressure manner, guiding a part of steam in a rotary spherical digester into a to-be-inlet rotary spherical digester through a steam transporting pipe so as to cyclically utilize the steam; then, feeding material by excess pressure in the rotary spherical digester; and replenishing the steam to the to-be-inlet rotary spherical digester so that the to-be-inlet rotary spherical digester satisfies the dissolving conditions of the solid sodium silicate. By dint of the main advantages of the method, the washing abrasion of discharging pipes specially elbow parts can be reduced, and the service life of elbows is prolonged; in addition, the dissolved steam of the solid sodium silicate can be utilized cyclically; the use quantity of the steam is saved by more than 40%; and production cost is saved greatly while the consumption of production energy is reduced obviously.

Description

A kind of solid water glass dissolved vapor recycle method

Technical field

The present invention relates to a kind of solid water glass dissolved vapor recycle method, belong to secondary energy sources cyclic utilization method in a kind of inorganic silicon chemicals production technology.This method is not only applicable to the recycle to the solid water glass dissolved vapor, and other is needed dissolving and the similar material of dissolution equipment structure under the high-temperature and high-pressure conditions, and the recycle of its dissolved vapor all can utilize this method.

Background technology

The solid water glass of high mode needs HTHP to dissolve, and utilizes steam pressure that water glass solution is delivered to surge tank after dissolving is accomplished, and present nearly all producer all utilizes the steam after the vapor-liquid separation that cold water is heated, even directly being discharged in the atmosphere of having.In this process, very big to channel bend part erosive wear during feeding because steam pressure is big, elbow is repaired very frequent; A lot of producers oneself production waterglass of putting up a kiln; Hot water after the shrend can satisfy the hot water demand of dissolving; So utilizing the steam after the vapor-liquid separation is not very big with the method meaning that cold water heats, the thermal efficiency does not reach assurance yet simultaneously, directly discharge of steam is wasted in atmosphere especially greatly.

Summary of the invention

The purpose of this invention is to provide a kind of solid water glass dissolved vapor recycle method, this method not only reduces solid water glass dissolving back feeding to channel bend part erosive wear, and can save steam consumption, reduces production costs.

Technical scheme of the present invention is following: a kind of solid water glass dissolved vapor recycle method; It is characterized in that: after solid water glass utilizes the HTHP dissolving to accomplish; Through air delivering pipeline a part of steam in the rotary spherical digester is directly imported to and to treat in the admission rotary spherical digester,, utilize overbottom pressure feeding in the rotary spherical digester then to carry out the recycle of steam; And treat the admission rotary spherical digester and carry out filling, make and treat that the admission rotary spherical digester satisfies the dissolution conditions of solid water glass.

In one embodiment, the said admission rotary spherical digester of treating is made up of the rotary spherical digester of treating admission of at least one, and through air delivering pipeline, those treat that the admission rotary spherical digester is communicated with rotary spherical digester simultaneously, to carry out the recycle of steam; Perhaps be communicated with rotary spherical digester successively, to carry out the recycle of steam.

In one embodiment; Said air delivering pipeline comprises first pipeline, second pipeline, the 3rd pipeline and the 4th pipeline; Said first pipeline is to be separately positioned on rotary spherical digester and air inlet and the discharge pipe treated in the admission rotary spherical digester, and said first pipeline is fixed on the relative position of rotary spherical digester and the feed opening of treating the admission rotary spherical digester, and said first pipeline is connected with second pipeline is unsteady; Pressure gauge and circulation stop valve are installed on said second pipeline; Said second pipeline is connected with the 3rd pipeline, and said the 3rd pipeline is and the tank connected total discharge pipe of buffering, the total stop valve of discharging is installed on said the 3rd pipeline; Said second pipeline is also other to be connected to the 4th pipeline that is connected with steam boiler, on said the 4th pipeline admission stop valve is installed.

In one embodiment, said rotary spherical digester all is connected with the 3rd pipeline with second pipeline of treating the admission rotary spherical digester.

In one embodiment, said circulation stop valve comprises discharging stop valve parallel with one another and circulation admission stop valve.

In one embodiment, said rotary spherical digester is equipped with brake gear with treating on the transmission device of admission rotary spherical digester.

In one embodiment, also other storage heater or the vapor-liquid separating device that is used for indirect utilization heat energy that be connected on said the 3rd pipeline.

In one embodiment, half steam in the said rotary spherical digester directly imports to be treated in the admission rotary spherical digester, since second rotary spherical digester, each rotary spherical digester can recycle steam about half, only need to replenish steam about half and just can reach normal pressurize and dissolve requirement.More and solution presasure is controlled when higher when the rotary spherical digester number; Dissolved vapor can be carried out secondary cycle utilization even recycled for multiple times; Promptly utilized wherein 1/2 after, supply another ball utilization once more with remaining 1/2 ... Last remaining pressure normally feeding gets final product.

Beneficial effect of the present invention is: utilize the method not only can reduce the discharge pipe erosive wear of elbow part particularly; Improve elbow service life; And can the solid water glass dissolved vapor be obtained recycle; Save steam consumption up to more than 40%, obviously reduced the consumption of producing the energy when saving production cost greatly.

Description of drawings

Fig. 1 is that the air delivering pipeline of the specific embodiment of the invention connects sketch map.

Among the figure: 1 rotary spherical digester, 2 treat the admission rotary spherical digester, 3 first pipelines, 4 first pipelines, 5 second pipelines, 6 second pipelines; 7 the 3rd pipelines, 8 the 4th pipelines, 9 feed openings, 10 feed openings, 11 Pressure gauges; 12 Pressure gauges, 13 circulation stop valves, 14 circulation stop valves, 13-1 discharging stop valve, 14-1 discharging stop valve; 13-2 circulation admission stop valve, 14-2 circulation admission stop valve, the total stop valve of 15 dischargings, 16 admission stop valves, 17 admission stop valves.

The specific embodiment

For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and conjunction with figs., elaborate as follows, but the present invention is not limited to this.

Consult accompanying drawing 1; Solid water glass dissolved vapor recycle method of the present invention is characterized in that: after solid water glass utilizes HTHP dissolving to accomplish, through air delivering pipeline a part of steam in the rotary spherical digester 1 is directly imported to and to treat in the admission rotary spherical digester 2; To carry out the recycle of steam; Utilize overbottom pressure feeding in the rotary spherical digester 1 then, and treat admission rotary spherical digester 2 and carry out filling, make and treat that admission rotary spherical digester 2 satisfies the dissolution conditions of solid water glass.

In the present embodiment, the said admission rotary spherical digester 2 of treating is made up of the rotary spherical digester of treating admission of at least one, and through air delivering pipeline, those treat that admission rotary spherical digester 2 is communicated with rotary spherical digester 1 simultaneously, to carry out the recycle of steam; Perhaps those treat that admission rotary spherical digester 2 is communicated with rotary spherical digester 1 successively, to carry out the recycle of steam.

In the present embodiment; Said air delivering pipeline comprises first pipeline 3 and 4, second pipeline 5 and the 6, the 3rd pipeline 7 and the 4th pipeline 8; Said first pipeline 3,4 is for being separately positioned on rotary spherical digester 1 and treating air inlet and the discharge pipe in the admission rotary spherical digester 2; And said first pipeline 3,4 is fixed on rotary spherical digester 1 and treats on the relative position of feed opening 9,10 of admission rotary spherical digester 2; Said first pipeline 3,4 floats with second pipeline 5,6 and is connected, and is separately installed with Pressure gauge 11,12 and circulation stop valve 13,14 on said second pipeline 5,6, and said second pipeline 5,6 is connected with the 3rd pipeline 7; Said the 3rd pipeline 7 is and the tank connected total discharge pipe of buffering; The total stop valve 15 of discharging is installed on said the 3rd pipeline 7, and said second pipeline 5,6 is also other to be connected to the 4th pipeline 8 that is connected with steam boiler, on said the 4th pipeline 8 admission stop valve 16,17 is installed.

In the present embodiment, said rotary spherical digester 1 all is connected with the 3rd pipeline 7 with second pipeline 5,6 of treating admission rotary spherical digester 2.

In the present embodiment, said circulation stop valve 13,14 comprises discharging stop valve 13-1 parallel with one another, 14-1 and circulation admission stop valve 13-2,14-2.

In the present embodiment, on said rotary spherical digester 1 and the transmission device of treating admission rotary spherical digester 2 brake gear is installed.

In the present embodiment, also other storage heater or the vapor-liquid separating device that is used for indirect utilization heat energy that be connected on said the 3rd pipeline.

Consult accompanying drawing 1, the present invention adopts following processing step to realize:

(1) rotary spherical digester 1 pressurize was accomplished before 20-40 minute, treated admission rotary spherical digester 2 beginning blankings (accomplishing in 20-40 minute), and locking treats to open behind the spherical cap of admission rotary spherical digester 2 motor of transmission device, makes it to rotate;

(2), rotary spherical digester 1 pressurize dissolving stops at the handstand position after 1.0-2.0 hour, at this moment, feed opening 9 and spherical cap down, and first pipeline 3 is positioned at upper position;

(3), successively open discharging stop valve 13-1 and circulation admission stop valve 14-2, the situation of change of observing Pressure gauge 11 and Pressure gauge 12 when both begin to reach balance, is successively closed circulation admission stop valve 14-2 and discharging stop valve 13-1;

(4), stop when rotating rotary spherical digester 1 to upright position, this moment spherical cap towards directly over, successively open total stop valve 15 of discharging and discharging stop valve 13-1 feeding, this moment, pressure was about 0.3 MPa-0.5MPa.

(5), open admission stop valve 17 beginning fillings, when pressure (accomplishing about 30 minutes) when 0.3MPa-0.5MPa rises to 0.6-1.0MPa is closed admission stop valve 17 pressurizes dissolving 1.0-2.0 hour.

(6), treat admission rotary spherical digester 2 pressurizes dissolvings after, its steam can supply next rotary spherical digester utilization ... Circulation successively.

The above is merely preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.

Claims (8)

1. solid water glass dissolved vapor recycle method; It is characterized in that: after solid water glass utilizes the HTHP dissolving to accomplish; Through air delivering pipeline a part of steam in the rotary spherical digester is directly imported to and to treat in the admission rotary spherical digester,, utilize overbottom pressure feeding in the rotary spherical digester then to carry out the recycle of steam; And treat the admission rotary spherical digester and carry out filling, make and treat that the admission rotary spherical digester satisfies the dissolution conditions of solid water glass.
2. solid water glass dissolved vapor recycle method according to claim 1; It is characterized in that: the said admission rotary spherical digester of treating is made up of the rotary spherical digester of treating admission of at least one; Through air delivering pipeline, those treat that the admission rotary spherical digester is communicated with rotary spherical digester simultaneously, to carry out the recycle of steam; Perhaps be communicated with rotary spherical digester successively, to carry out the recycle of steam.
3. solid water glass dissolved vapor recycle method according to claim 1 and 2; It is characterized in that: said air delivering pipeline comprises first pipeline, second pipeline, the 3rd pipeline and the 4th pipeline; Said first pipeline is to be separately positioned on rotary spherical digester and air inlet and the discharge pipe treated in the admission rotary spherical digester, and said first pipeline is fixed on the relative position of rotary spherical digester and the feed opening of treating the admission rotary spherical digester, and said first pipeline is connected with second pipeline is unsteady; Pressure gauge and circulation stop valve are installed on said second pipeline; Said second pipeline is connected with the 3rd pipeline, and said the 3rd pipeline is and the tank connected total discharge pipe of buffering, the total stop valve of discharging is installed on said the 3rd pipeline; Said second pipeline is also other to be connected to the 4th pipeline that is connected with steam boiler, on said the 4th pipeline admission stop valve is installed.
4. solid water glass dissolved vapor recycle method according to claim 3 is characterized in that: said rotary spherical digester all is connected with the 3rd pipeline with second pipeline of treating the admission rotary spherical digester.
5. solid water glass dissolved vapor recycle method according to claim 3 is characterized in that: said circulation stop valve comprises discharging stop valve parallel with one another and circulation admission stop valve.
6. solid water glass dissolved vapor recycle method according to claim 3 is characterized in that: said rotary spherical digester is equipped with brake gear with treating on the transmission device of admission rotary spherical digester.
7. solid water glass dissolved vapor recycle method according to claim 3 is characterized in that: also other storage heater or the vapor-liquid separating device that is used for indirect utilization heat energy that be connected on said the 3rd pipeline.
8. solid water glass dissolved vapor recycle method according to claim 1; It is characterized in that: half steam in the said rotary spherical digester directly imports to be treated in the admission rotary spherical digester, only needs additional half the steam just can make again and treats that the admission rotary spherical digester reaches normal pressurize dissolving requirement.
CN2012103278448A 2012-09-07 2012-09-07 Method for cyclically utilizing dissolved steam of solid sodium silicate CN102836651A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104624069A (en) * 2014-12-30 2015-05-20 金能科技股份有限公司 Continuous sodium silicate pressurized dissolving method
CN106040025A (en) * 2016-07-08 2016-10-26 金能科技股份有限公司 Novel steam consumption saving process and device for dissolving solid water glass

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4347224A (en) * 1980-05-30 1982-08-31 Ecodyne Corporation Chemical dispenser
JPH09110416A (en) * 1995-10-20 1997-04-28 Tokuyama Corp Production of aqueous alkali silicate solution
CN101508441B (en) * 2008-10-17 2011-09-21 株洲兴隆化工实业有限公司 Direct dissolution process for molten sodium silicate
CN202052475U (en) * 2011-04-20 2011-11-30 无锡恒诚硅业有限公司 Vapor recovery system used in solid sodium silicate dissolution process
CN202105600U (en) * 2011-05-03 2012-01-11 福建省沙县金沙白炭黑制造有限公司 Waste heat recovery device for sodium silicate dissolving

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4347224A (en) * 1980-05-30 1982-08-31 Ecodyne Corporation Chemical dispenser
JPH09110416A (en) * 1995-10-20 1997-04-28 Tokuyama Corp Production of aqueous alkali silicate solution
CN101508441B (en) * 2008-10-17 2011-09-21 株洲兴隆化工实业有限公司 Direct dissolution process for molten sodium silicate
CN202052475U (en) * 2011-04-20 2011-11-30 无锡恒诚硅业有限公司 Vapor recovery system used in solid sodium silicate dissolution process
CN202105600U (en) * 2011-05-03 2012-01-11 福建省沙县金沙白炭黑制造有限公司 Waste heat recovery device for sodium silicate dissolving

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104624069A (en) * 2014-12-30 2015-05-20 金能科技股份有限公司 Continuous sodium silicate pressurized dissolving method
CN104624069B (en) * 2014-12-30 2016-08-24 金能科技股份有限公司 A kind of continuous, the dissolved under pressure method of sodium silicate
CN106040025A (en) * 2016-07-08 2016-10-26 金能科技股份有限公司 Novel steam consumption saving process and device for dissolving solid water glass

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Effective date of abandoning: 20121226