CN111975978A - RDSR still kettle full-automatic energy-saving control method - Google Patents
RDSR still kettle full-automatic energy-saving control method Download PDFInfo
- Publication number
- CN111975978A CN111975978A CN202010907339.5A CN202010907339A CN111975978A CN 111975978 A CN111975978 A CN 111975978A CN 202010907339 A CN202010907339 A CN 202010907339A CN 111975978 A CN111975978 A CN 111975978A
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- steam
- still kettle
- still
- autoclave
- controller controls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0081—Process control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
Abstract
The application provides a full-automatic energy-saving control method for an RDSR still kettle, which specifically comprises the following steps: replacing and preheating the first still kettle by residual steam in other still kettles; after the replacement preheating process is finished, introducing new steam into the first still kettle through an external pipe network; after introducing new steam, keeping the pressure in the first still kettle at 1.2MPa, and after keeping for a period of time, stopping conveying the new steam by the external pipe network; after the new steam is stopped being conveyed, maintaining the pressure of the first still kettle for a period of time to finish the still process; after the steam pressing process is finished, the steam in the first steam pressing kettle can be reused. This application can realize the steam distribution process of falling vapour to still kettle completely automatically to can utilize the exhaust steam in the still kettle that processing was accomplished completely, can save more than steam 15%, and still can utilize the heat energy of the exhaust steam and the heat energy of high temperature condensate water in the still kettle after accomplishing processing completely, practiced thrift the required heat energy of boiler soft water heating.
Description
Technical Field
The application relates to the technical field of energy conservation and environmental protection by taking steam as a main medium, in particular to a full-automatic energy-saving control method for an RDSR still kettle.
Background
The autoclave is a large pressure vessel with large volume and heavy weight, and the steam pressure in the autoclave is measured by a pressure transmitter, so that a steam valve is determined to be opened or closed to keep the pressure in the autoclave constant, and the material can be reacted under a high-pressure condition, so that the autoclave is widely used for the autoclave curing of building materials such as aerated concrete blocks, sand lime bricks, coal ash bricks, heat-insulating asbestos boards and the like.
Among the prior art, the valve of the distribution steam exhaust on the cauldron that evaporates still can not all reach automatic control, a large amount of valves still need the manual work to operate, working strength is great, various potential safety hazards still can appear in the misoperation, factor of safety is lower, and evaporate the pressure cauldron and release exhaust steam of in-process exhaust and have certain pressure and the temperature is higher, have very big heat energy value, direct discharge can not utilize evaporating the exhaust steam in the cauldron, the extravagant phenomenon of steam and heat energy resource is serious, the environmental pollution of processing factory is also comparatively serious.
In the prior art, the waste heat of the still kettle is recycled by adopting a flash tank, but the method has incomplete utilization of heat energy and excessively complicated operation method and equipment.
Disclosure of Invention
The application provides a full-automatic energy-saving control method for an RDSR still kettle, which aims to solve the problems that the still kettle in the prior art cannot completely realize automatic steam distribution and steam exhaust, the safety coefficient is low, waste steam and heat energy resources in the still kettle are seriously wasted, and certain environmental pollution can be caused.
The application provides a full-automatic energy-saving control method for an RDSR still kettle, which specifically comprises the following steps:
replacing and preheating the first still kettle by residual steam in other still kettles;
after the replacement preheating process is finished, introducing new steam into the first still kettle through an external pipe network;
after the new steam is introduced, the pressure in the first still kettle is kept at 1.2MPa, and after the pressure is kept for a period of time, the external pipe network stops conveying the new steam;
after the new steam is stopped being conveyed, maintaining the pressure of the first still kettle for a period of time to finish the still process;
and after the steam pressing process is finished, the steam in the first steam pressing kettle can be reused.
In a preferred embodiment of the present application, the first still kettle is replaced and preheated by the residual steam in other still kettles, and the specific steps are as follows:
the controller controls a steam pouring switch valve of the first still kettle to be opened to prepare for receiving the poured steam;
the controller controls a steam pouring switch valve of a second still kettle to be opened, and residual steam of 0.6MPa in the second still kettle is poured into the first still kettle;
when the second still kettle pours steam into the first still kettle, the controller controls an exhaust valve of the first still kettle to open, and the controller controls a condensed water discharge valve to close to discharge air in the first still kettle;
when the opening time of the exhaust valve reaches a preset value, the controller controls the exhaust valve to be closed, and the controller controls the condensed water discharge valve to be opened to discharge condensed water in the first still kettle;
when the pressures of the first still kettle and the second still kettle are consistent, the controller controls a steam pouring switch valve of the second still kettle to be closed;
the controller controls a steam pouring switch valve of a third still kettle to be opened, and residual steam of 1.0MPa in the third still kettle is led into the first still kettle;
and when the pressures of the first still kettle and the third still kettle are consistent, the controller controls a steam pouring switch valve of the third still kettle to be closed, so that the replacement preheating process is completed.
By adopting the technical scheme, the waste steam in the still kettle after processing can be utilized to preheat and boost the new still kettle to be processed, a large amount of new steam from an external pipe network can be saved, the utilization rate of the waste steam is higher, and the energy-saving and environment-friendly effects are achieved.
In a preferred embodiment of the present application, after the replacement preheating process is completed, new steam is introduced into the first autoclave through an external pipe network, and the specific steps are as follows:
the controller controls a steam reversing switch valve of the first still kettle to be closed, and the controller controls a new steam regulating valve connected with the first still kettle and the external pipe network to be opened;
and continuously boosting the pressure of the first still kettle after the replacement preheating process is finished through the new steam, wherein the boosting speed is 0.01 MPa/min.
In a preferred embodiment of the present application, after the steaming process is completed, the steam inside the first still kettle can be reused, and the specific operation process is as follows:
the controller controls a steam pouring switch valve of the first still kettle to be opened, residual steam of 1.0MPa in the first still kettle is poured into a fourth still kettle, and the fourth still kettle is replaced and preheated;
when 0.3MPa of residual steam remains in the first still kettle, the controller controls an exhaust switch valve of the first still kettle to be opened, the 0.3MPa of residual steam is conveyed to a heat energy recovery pipe network, and heat energy of the 0.3MPa of residual steam is utilized to exchange heat for boiler soft water;
the controller controls a condensate water discharge valve of the first still kettle to be opened, high-temperature condensate water in the first still kettle is conveyed to a condensate water heat energy recovery pipe network, and the high-temperature condensate water is used for exchanging heat for the boiler soft water.
By adopting the technical scheme, the waste steam and the heat energy resources in the first still kettle after processing can be completely utilized, and the heat energy resources are directly utilized to heat up the boiler soft water, so that the utilization of the flash steam is more sufficient compared with the existing method that the flash steam is changed into flash steam by adopting a flash tank, and the unit consumption of new steam can be saved by at least 15%.
In a preferred embodiment of the present application, the first still kettle is a new still kettle to be processed, the second still kettle is a still kettle which has been processed and has undergone primary steam pouring, the third still kettle is a still kettle which has just been processed and has not undergone steam pouring, and the fourth still kettle is a new still kettle to be processed.
Compared with the prior art, the RDSR still kettle full-automatic energy-saving control method has the following beneficial effects:
(1) this application sets up opening or closing of vapour distributing valve, discharge valve and condensate water discharge valve and new steam control valve on evaporating the cauldron through controller control, can realize the vapour distributing process of falling the vapour to evaporating the cauldron automatically completely, does not need any manual intervention, and efficiency is higher, can not appear because manual switch valve leads to the accident of scald, and factor of safety is higher.
(2) This application can preheat the exhaust steam in the still kettle that processing was accomplished to other new still kettles and can save steam more than 15% to still can exchange the heat energy of exhaust steam and the heat energy of high temperature condensate water and the boiler soft water in the still kettle after processing was accomplished, improve the temperature of boiler soft water, practiced thrift the required heat energy of boiler soft water heating originally, it is energy-concerving and environment-protective more.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a fully automatic energy-saving method for an RDSR still kettle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "bottom", "inside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally found to be used in the products of the present invention, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
To make the objects, embodiments and advantages of the present application clearer, the following description of exemplary embodiments of the present application will clearly and completely describe the exemplary embodiments of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application, and it is to be understood that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments described herein without inventive step, are intended to be within the scope of the claims appended hereto. In addition, while the disclosure herein has been presented in terms of one or more exemplary examples, it should be appreciated that aspects of the disclosure may be implemented solely as a complete embodiment.
It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.
Referring to fig. 1, which is a flowchart of a full-automatic energy-saving control method for an RDSR still kettle in the present application, it should be particularly described that, in the present application, R represents replacement, D represents distribution, S represents save, and RDSR represents an overall implementation process of full-automatic steam-pouring and steam-distributing and steam and heat energy saving for the still kettle.
Examples
As shown in fig. 1, the fully-automatic energy-saving control method for the RDSR still kettle provided by the application specifically includes the following steps:
s101, replacing and preheating a first still kettle through residual steam in other still kettles;
s102, after the replacement preheating process is finished, introducing new steam into the first still kettle through an external pipe network;
s103, after the new steam is introduced, keeping the pressure in the first still kettle at 1.2MPa, and after the pressure is kept for a period of time, stopping conveying the new steam by the external pipe network;
s104, after the conveying of the new steam is stopped, maintaining the pressure of the first still kettle for a period of time to finish the still process;
and S105, after the steam pressing process is finished, the steam in the first steam pressing kettle can be reused.
It should be particularly noted that, in this embodiment, the first autoclave is a new autoclave to be processed, the second autoclave is an autoclave which has been processed and subjected to primary steam pouring, the third autoclave is an autoclave which has just been processed and not subjected to steam pouring, and the fourth autoclave is a new autoclave to be processed; in addition, all processes are realized by the controller controlling the corresponding valves to be opened or closed, so that the full-automatic treatment of the whole processing process is achieved, the efficiency is higher, and the safety factor is higher.
Further, both the pressure holding time and the pressure maintaining time of the first autoclave can be selected according to actual situations, which is not limited in this application, but in this embodiment, in step S103, the pressure of the first autoclave needs to be maintained at 1.2MPa for one hour; in step S104, the first autoclave needs to maintain pressure for three hours to complete the whole autoclave process.
On the basis of the above specific embodiment, further, the first still kettle is replaced and preheated by the residual steam in the other still kettles, and the specific steps are as follows:
s1011, the controller controls a steam pouring switch valve of the first still kettle to be opened to prepare for receiving the poured steam;
s1012, controlling a steam pouring switch valve of a second still kettle to be opened by the controller, and pouring the residual steam of 0.6MPa in the second still kettle into the first still kettle;
s1013, the controller controls an exhaust valve of the first still kettle to be opened while the second still kettle pours steam into the first still kettle, and the controller controls a condensate water discharge valve to be closed to discharge air in the first still kettle;
s1014, after the opening time of the exhaust valve reaches a preset value, the controller controls the exhaust valve to be closed, and the controller controls the condensed water discharge valve to be opened to discharge the condensed water in the first still kettle;
s1015, when the pressures of the first still kettle and the second still kettle are consistent, the controller controls a steam-pouring switch valve of the second still kettle to close;
s1016, the controller controls a steam pouring switch valve of a third still kettle to be opened, and residual steam of 1.0MPa left in the third still kettle is led into the first still kettle;
s1017, when the pressures of the first still kettle and the third still kettle are consistent, the controller controls a steam pouring switch valve of the third still kettle to be closed, and the replacement preheating process is completed.
It should be particularly noted that the preset value of the opening time of the exhaust valve is determined according to actual situations, and the application is not limited thereto, but in the present embodiment, the preset value of the opening time of the exhaust valve in step S1014 is 15 minutes; in step S1015, when the pressures of the first still kettle and the second still kettle are both 0.3MPa, the controller controls the steam-pouring switch valve of the second still kettle to close; in step S1017, when the pressures of the first still kettle and the third still kettle are both 0.6MPa, the controller controls the steam-pouring switch valve of the third still kettle to close.
By adopting the technical scheme, the waste steam in the still kettle after processing can be utilized to preheat and boost the new still kettle to be processed, a large amount of new steam from an external pipe network can be saved, the utilization rate of the waste steam is higher, and the energy-saving and environment-friendly effects are achieved.
On the basis of the above specific embodiment, further, after the replacement preheating process is completed, new steam is introduced into the first still kettle through an external pipe network, and the specific steps are as follows:
the controller controls a steam reversing switch valve of the first still kettle to be closed, and the controller controls a new steam regulating valve connected with the first still kettle and the external pipe network to be opened;
and continuously boosting the pressure of the first still kettle after the replacement preheating process is finished through the new steam, wherein the boosting speed is 0.01 MPa/min.
It should be noted that, in this embodiment, after the pressure in the first autoclave is increased from 0.6MPa to 1.2MPa by using new steam, the pressure is maintained for one hour, and then the controller can close the new steam regulating valve connected to the external pipe network to enter a pressure maintaining state, and the pressure maintaining time needs to last for three hours to complete the whole autoclave process.
On the basis of the above specific embodiment, further, after the autoclaving process is completed, the steam in the first autoclave can be reused, and the specific operation process is as follows:
the controller controls a steam pouring switch valve of the first still kettle to be opened, residual steam of 1.0MPa in the first still kettle is poured into a fourth still kettle, and the fourth still kettle is replaced and preheated;
when 0.3MPa of residual steam remains in the first still kettle, the controller controls an exhaust switch valve of the first still kettle to be opened, the 0.3MPa of residual steam is conveyed to a heat energy recovery pipe network, and heat energy of the 0.3MPa of residual steam is utilized to exchange heat for boiler soft water;
the controller controls a condensate water discharge valve of the first still kettle to be opened, high-temperature condensate water in the first still kettle is conveyed to a condensate water heat energy recovery pipe network, and the high-temperature condensate water is used for exchanging heat for the boiler soft water.
By adopting the technical scheme, the waste steam and the heat energy resources in the first still kettle after processing can be completely utilized, and the heat energy resources are directly utilized to heat up the boiler soft water, so that the utilization of the flash steam is more sufficient compared with the existing method that the flash steam is changed into flash steam by adopting a flash tank, and the unit consumption of new steam can be saved by at least 15%.
It should be particularly noted that the steam-reversing switch valve and the new steam regulating valve are both connected to the still kettle, and the exhaust valve and the condensed water discharge valve are both disposed on the still kettle or at the bottom of the still kettle, and the specific positions are positions customarily disposed in the field, which has no influence on the whole technical scheme of the application and does not limit the protection scope of the application.
The embodiments provided in the present application are only the best examples under the general concept of the present application and do not constitute the limitation of the protection scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (5)
1. A full-automatic energy-saving control method for an RDSR still kettle is characterized by comprising the following steps:
replacing and preheating the first still kettle by residual steam in other still kettles;
after the replacement preheating process is finished, introducing new steam into the first still kettle through an external pipe network;
after the new steam is introduced, the pressure in the first still kettle is kept at 1.2MPa, and after the pressure is kept for a period of time, the external pipe network stops conveying the new steam;
after the new steam is stopped being conveyed, maintaining the pressure of the first still kettle for a period of time to finish the still process;
and after the steam pressing process is finished, the steam in the first steam pressing kettle can be reused.
2. The RDSR autoclave full-automatic energy-saving control method according to claim 1, wherein the first autoclave is replaced and preheated by residual steam in other autoclaves, and the method comprises the following specific steps:
the controller controls a steam pouring switch valve of the first still kettle to be opened to prepare for receiving the poured steam;
the controller controls a steam pouring switch valve of a second still kettle to be opened, and residual steam of 0.6MPa in the second still kettle is poured into the first still kettle;
when the second still kettle pours steam into the first still kettle, the controller controls an exhaust valve of the first still kettle to open, and the controller controls a condensed water discharge valve to close to discharge air in the first still kettle;
when the opening time of the exhaust valve reaches a preset value, the controller controls the exhaust valve to be closed, and the controller controls the condensed water discharge valve to be opened to discharge condensed water in the first still kettle;
when the pressures of the first still kettle and the second still kettle are consistent, the controller controls a steam pouring switch valve of the second still kettle to be closed;
the controller controls a steam pouring switch valve of a third still kettle to be opened, and residual steam of 1.0MPa in the third still kettle is led into the first still kettle;
and when the pressures of the first still kettle and the third still kettle are consistent, the controller controls a steam pouring switch valve of the third still kettle to be closed, so that the replacement preheating process is completed.
3. The RDSR autoclave full-automatic energy-saving control method according to claim 1, wherein after the replacement preheating process is completed, new steam is introduced into the first autoclave through an external pipe network, and the specific steps are as follows:
the controller controls a steam reversing switch valve of the first still kettle to be closed, and the controller controls a new steam regulating valve connected with the first still kettle and the external pipe network to be opened;
and continuously boosting the pressure of the first still kettle after the replacement preheating process is finished through the new steam, wherein the boosting speed is 0.01 MPa/min.
4. The RDSR autoclave full-automatic energy-saving control method according to claim 1, wherein after the autoclaving process is completed, the steam in the first autoclave can be reused, and the specific operation process is as follows:
the controller controls a steam pouring switch valve of the first still kettle to be opened, residual steam of 1.0MPa in the first still kettle is poured into a fourth still kettle, and the fourth still kettle is replaced and preheated;
when 0.3MPa of residual steam remains in the first still kettle, the controller controls an exhaust switch valve of the first still kettle to be opened, the 0.3MPa of residual steam is conveyed to a heat energy recovery pipe network, and heat energy of the 0.3MPa of residual steam is utilized to exchange heat for boiler soft water;
the controller controls a condensate water discharge valve of the first still kettle to be opened, high-temperature condensate water in the first still kettle is conveyed to a condensate water heat energy recovery pipe network, and the high-temperature condensate water is used for exchanging heat for the boiler soft water.
5. The RDSR autoclave full-automatic energy-saving control method according to any one of claims 1-4, wherein the first autoclave is a new autoclave to be processed, the second autoclave is an autoclave which has been processed and has undergone primary steam pouring, the third autoclave is an autoclave which has just been processed and has not undergone steam pouring, and the fourth autoclave is a new autoclave to be processed.
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| CN202010907339.5A CN111975978B (en) | 2020-09-02 | 2020-09-02 | RDSR still kettle full-automatic energy-saving control method |
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| CN202010907339.5A CN111975978B (en) | 2020-09-02 | 2020-09-02 | RDSR still kettle full-automatic energy-saving control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993559A (en) * | 2020-08-14 | 2020-11-27 | 肇庆三乐集成房屋制造有限公司 | Calcium silicate board evaporates presses maintenance system |
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| JPS56126441A (en) * | 1980-03-11 | 1981-10-03 | Kubota Ltd | Autoclave apparatus |
| CN203650680U (en) * | 2013-12-25 | 2014-06-18 | 上海索纳塔新型墙体材料有限公司 | Energy-saving autoclaving and curing device for autoclaved aerated concrete building block |
| CN204869192U (en) * | 2014-08-22 | 2015-12-16 | 遵义永诚环保建材有限公司 | Evaporate and press cauldron exhaust steam to utilize device |
| CN106142314A (en) * | 2015-03-16 | 2016-11-23 | 杭州恒勋能源科技有限公司 | Remaining vapour recycling energy conserving system in a kind of steam-cured kettle |
| CN205766765U (en) * | 2016-05-31 | 2016-12-07 | 上海道力其能源科技有限公司 | A kind of the fall vapour device of air-entrained concrete building block still kettle |
| CN109795019A (en) * | 2019-01-14 | 2019-05-24 | 天津大学 | Air-entrained concrete building block still kettle overbottom pressure is exhaust heat stepped to utilize method and device |
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2020
- 2020-09-02 CN CN202010907339.5A patent/CN111975978B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56126441A (en) * | 1980-03-11 | 1981-10-03 | Kubota Ltd | Autoclave apparatus |
| CN203650680U (en) * | 2013-12-25 | 2014-06-18 | 上海索纳塔新型墙体材料有限公司 | Energy-saving autoclaving and curing device for autoclaved aerated concrete building block |
| CN204869192U (en) * | 2014-08-22 | 2015-12-16 | 遵义永诚环保建材有限公司 | Evaporate and press cauldron exhaust steam to utilize device |
| CN106142314A (en) * | 2015-03-16 | 2016-11-23 | 杭州恒勋能源科技有限公司 | Remaining vapour recycling energy conserving system in a kind of steam-cured kettle |
| CN205766765U (en) * | 2016-05-31 | 2016-12-07 | 上海道力其能源科技有限公司 | A kind of the fall vapour device of air-entrained concrete building block still kettle |
| CN109795019A (en) * | 2019-01-14 | 2019-05-24 | 天津大学 | Air-entrained concrete building block still kettle overbottom pressure is exhaust heat stepped to utilize method and device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993559A (en) * | 2020-08-14 | 2020-11-27 | 肇庆三乐集成房屋制造有限公司 | Calcium silicate board evaporates presses maintenance system |
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| CN111975978B (en) | 2021-09-07 |
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Effective date of registration: 20221223 Address after: 710082 Room 20905, Unit 2, Building 1, Tianlang Weilan International, No. 3, Daqing Road, Lianhu District, Xi'an, Shaanxi Patentee after: Smyrac Fluid Technology (Xi'an) Co.,Ltd. Address before: Room 12302, 23 / F, unit 1, building 20, Bajia garden, 17 Renmin East Village, Lianhu District, Xi'an City, Shaanxi Province, 710082 Patentee before: Xi'an Tangtai energy conservation and Environmental Protection Technology Co.,Ltd. |