阅读说明：本技术 一种减水剂添加系统及方法 (Water reducing agent adding system and method ) 是由 鲁旭 周继明 刘伟 刘晨 王浩然 郭臣明 于 2021-07-13 设计创作，主要内容包括：本发明公开了一种减水剂添加系统,包括主减水剂添加管路、备用减水剂添加管路、流速监测机构和控制模块；所述流速监测机构设置在所述主减水剂添加管路的下料口一侧,所述流速监测机构用于实时检测所述主减水剂的流速大小；所述控制模块与所述流速监测机构以及所述备用减水剂添加管路连接,所述控制模块能够在所述主减水剂添加管路的流速低于预设值时打开所述备用减水剂添加管路进行减水剂补加；本发明在流速检测机构检测道主减水剂添加管路的流速变小即主减水剂添加管路发生一定程度的堵塞时,即可自动打开备用减水剂添加管路进行添加作业,以使得石膏板料浆中的减水剂量达到预设值,从而保证了石膏板成品的质量。(The invention discloses a water reducing agent adding system which comprises a main water reducing agent adding pipeline, a standby water reducing agent adding pipeline, a flow rate monitoring mechanism and a control module, wherein the main water reducing agent adding pipeline is connected with the standby water reducing agent adding pipeline; the flow rate monitoring mechanism is arranged on one side of a feed opening of the main water reducing agent adding pipeline and is used for detecting the flow rate of the main water reducing agent in real time; the control module is connected with the flow rate monitoring mechanism and the standby water reducer adding pipeline, and can open the standby water reducer adding pipeline to supplement the water reducer when the flow rate of the main water reducer adding pipeline is lower than a preset value; according to the invention, when the flow rate detection mechanism detects that the flow rate of the main water reducing agent adding pipeline is reduced, namely the main water reducing agent adding pipeline is blocked to a certain degree, the standby water reducing agent adding pipeline can be automatically opened for adding operation, so that the water reducing agent amount in gypsum board slurry reaches a preset value, and the quality of a gypsum board finished product is ensured.)

1. A water reducing agent adding system is characterized by comprising a main water reducing agent adding pipeline (10), a standby water reducing agent adding pipeline (20), a flow rate monitoring mechanism (30) and a control module (40);

the flow rate monitoring mechanism (30) is arranged on one side of a feed opening of the main water reducing agent adding pipeline (10), and the flow rate monitoring mechanism (30) is used for detecting the flow rate of the main water reducing agent in real time;

the control module (40) is connected with the flow rate monitoring mechanism (30) and the standby water reducer adding pipeline (20), and the control module (40) can open the standby water reducer adding pipeline (20) to supplement the water reducer when the flow rate of the main water reducer adding pipeline (10) is lower than a preset value.

2. The water reducer addition system according to claim 1, characterized in that the main water reducer addition line (10) is used for conveying a solid water reducer;

the main water reducing agent adding pipeline (10) comprises a solid water reducing agent storage tank (11) and a conveying pipeline (12) connected with the solid water reducing agent storage tank (11), a metering pump (13) is installed on the conveying pipeline (12), and the control module (40) is used for controlling the starting and stopping of the metering pump (13);

the standby water reducing agent adding pipeline (20) is used for conveying a liquid water reducing agent;

reserve water-reducing agent adds pipeline (20) include liquid water-reducing agent storage tank (21) and with spring reamer (22) that liquid water-reducing agent storage tank (21) are connected, velocity of flow monitoring mechanism (30) set up the output one side of spring reamer (22).

3. The water reducing agent adding system according to claim 1, wherein the flow rate monitoring mechanism (30) comprises a baffle plate (31) hinged to a feed opening of the main water reducing agent adding pipeline (10), the main water reducing agent conveyed along the main water reducing agent adding pipeline (10) exerts an acting force on the baffle plate (31) to enable the baffle plate (31) to rotate, and the opening and closing angle of the baffle plate (31) is in a direct proportion relation with the flow rate;

the control module (40) can drive the standby water reducing agent adding pipeline (20) to start when the rotation angle of the baffle plate (31) is smaller than a set value.

4. The water reducer adding system according to claim 3, wherein the control module (40) comprises a first photoelectric sensing patch (41), a first proximity switch (42) and a controller;

the first photoelectric sensing patch (41) is arranged on one side of the baffle plate (31) far away from the hinge point of the baffle plate;

the first proximity switch (42) is mounted on one side of a feed opening of the main water reducing agent adding pipeline (10) through a first mounting bracket, so that the first proximity switch (42) can sense the first photoelectric sensing patch (41) when the opening and closing angle of the baffle plate (31) reaches a set value;

the controller is connected with the first proximity switch (42) and the spare water reducing agent adding pipeline (20), and the controller is used for receiving the sensing signal of the first proximity switch (42) and driving the spare water reducing agent adding pipeline to work after receiving the sensing signal.

5. The water reducer adding system according to claim 4, wherein the flow rate monitoring mechanism (30) further comprises a gravity sensing structure, the gravity sensing structure is arranged right below a feed opening of the main water reducer adding pipeline (10) and is used for receiving the main water reducer falling from the feed opening, and the gravity sensing structure can send a signal when no water reducer falls so that the controller drives the spare water reducer adding pipeline (20) to work.

6. The water reducer adding system according to claim 5, wherein the gravity sensing structure comprises a rotating plate (32) arranged right below a feed opening of the main water reducer adding pipeline (10), two ends of the rotating plate (32) are respectively and rotatably connected with the outer wall of the main water reducer adding pipeline (10) through a shaft rod, one end of the rotating plate (32) is used for receiving the main water reducer falling from the feed opening, and the other end of the rotating plate (32) is connected with the outer wall of the main water reducer adding pipeline (10) through a spring (33);

a second photoelectric sensing patch (34) is arranged at one end, far away from the spring (33), of the rotating plate (32), a second proximity switch (35) is further arranged on one side of a feed opening of the main water reducing agent adding pipeline (10), and the second proximity switch (35) can sense the second photoelectric sensing patch (34) right after the rotating angle of the rotating plate (32) reaches a set value;

the controller is used for receiving the induction signal of the second proximity switch (35) and driving the standby water reducing agent adding pipeline (20) to work after receiving the induction signal.

7. The water reducing agent adding system according to claim 6, wherein the spare water reducing agent adding pipeline (20) and the main water reducing agent adding pipeline (10) are arranged side by side, the spare water reducing agent adding pipeline (20) is arranged above the main water reducing agent adding pipeline (10), a cover plate (21) capable of covering the discharge hole is arranged at the discharge hole of the spare water reducing agent adding pipeline (20), the cover plate (21) is connected with the baffle plate (31), and the cover plate (21) is perpendicular to the baffle plate (31) so that the opening and closing size of the discharge hole and the opening and closing size of the discharge hole are in an inverse proportion relation.

8. Water reducer addition system according to claim 7, characterized in that the baffle (31) is provided with a plurality of stamp blocks (36) on the side facing the discharge opening and with pressure springs (37) at the edge of the discharge opening.

9. The adding method of the water reducing agent adding system based on any one of the claims 1 to 8 is characterized by comprising the following steps:

step 100, starting a main water reducer adding pipeline to add a main water reducer at a preset flow rate;

200, detecting the flow rate of the main water reducing agent in real time by using a flow rate monitoring mechanism;

and 300, starting a standby water reducer pipeline to supplement the standby water reducer when the flow rate of the main water reducer is lower than a preset value.

10. The method for adding the water reducing agent according to claim 9, further comprising the step 300 of: and establishing an inverse proportional relation between the flow rate of the standby water reducing agent and the flow rate of the main water reducing agent so as to enable the superposed flow rate of the standby water reducing agent and the main water reducing agent to be equal to a preset value.

Technical Field

The invention relates to the technical field of gypsum board production, in particular to a water reducing agent adding system and method.

Background

The paper-surface gypsum board has the advantages of light weight, high strength, fire resistance, moth resistance, easy processing and the like, and is one of important building materials. In recent years, domestic gypsum plasterboards are developed rapidly, the productivity is improved rapidly, and high-speed gypsum board production lines are more and more along with the continuous improvement of the production equipment level; however, with the wide range of applications of industrial by-product gypsum, problems are also highlighted, such as: slower setting, lower strength, etc.; the industrial production of the gypsum plaster board is restricted, and with the improvement of energy saving and consumption reduction consciousness, the gypsum plaster board industry generally applies the water reducing agent, and the correct application of the water reducing agent can not only improve the fluidity of building gypsum slurry and the finished product strength of the gypsum plaster board, but also save coal consumption and reduce production cost.

The existing water reducing agent has two different forms of solid and liquid; the liquid water reducing agent has more dregs, and in the production process, a liquid water reducing agent storage tank inevitably accumulates some dregs to cause blanking blockage or locked rotation of a metering pump, so that the water reducing agent cannot be smoothly added into slurry, unqualified plates are generated, and even the machine is shut down; the powdery water reducing agent is easy to be coagulated into blocks in wet weather, blocks the spring reamer or does not discharge, and the powdery water reducing agent cannot be smoothly added into slurry in the production process.

Because the addition of water-reducing agent influences the finished product quality of way gypsum board, consequently prior art generally utilizes the people to observe the water-reducing agent condition of adding, in case take place to block up, in time stops the continuous operation of gypsum board production line and dredges the department that blocks up so that the water-reducing agent resumes the transport after, opens the production line again, but this kind of mode has interrupted the continuous production of production line, has influenced the production efficiency of gypsum board.

Disclosure of Invention

The invention aims to provide a water reducing agent adding system and a water reducing agent adding method, and aims to solve the technical problem that production efficiency of gypsum boards is affected by manual stopping of a production line and dredging operation when a water reducing agent adding pipeline is blocked in the prior art.

In order to solve the technical problems, the invention specifically provides the following technical scheme:

a water reducing agent adding system comprises a main water reducing agent adding pipeline, a standby water reducing agent adding pipeline, a flow rate monitoring mechanism and a control module;

the flow rate monitoring mechanism is arranged on one side of a feed opening of the main water reducing agent adding pipeline and is used for detecting the flow rate of the main water reducing agent in real time;

the control module is connected with the flow rate monitoring mechanism and the standby water reducer adding pipeline, and the control module can open the standby water reducer adding pipeline to supplement the water reducer when the flow rate of the main water reducer adding pipeline is lower than a preset value.

As a preferable scheme of the invention, the main water reducing agent adding pipeline is used for conveying the solid water reducing agent;

the main water reducing agent adding pipeline comprises a solid water reducing agent storage tank and a conveying pipeline connected with the solid water reducing agent storage tank, a metering pump is installed on the conveying pipeline, and the control module is used for controlling the start and stop of the metering pump;

the standby water reducing agent adding pipeline is used for conveying a liquid water reducing agent;

reserve water-reducing agent adds the pipeline include liquid water-reducing agent storage tank and with the spring reamer that liquid water-reducing agent storage tank is connected, velocity of flow monitoring mechanism sets up output one side of spring reamer.

As a preferred scheme of the invention, the flow rate monitoring mechanism comprises a baffle plate hinged at a feed opening of the main water reducing agent adding pipeline, the main water reducing agent conveyed along the main water reducing agent adding pipeline exerts an acting force on the baffle plate to enable the baffle plate to rotate, and the opening and closing angle of the baffle plate is in a direct proportion relation with the flow rate;

the control module can drive the standby water reducer adding pipeline to start when the rotation angle of the blocking piece is smaller than a set value.

As a preferred scheme of the present invention, the control module includes a first photoelectric sensing patch, a first proximity switch, and a controller;

the first photoelectric sensing patch is arranged on one side of the separation blade far away from the hinge point of the separation blade;

the first proximity switch is mounted on one side of a feed opening of the main water reducing agent adding pipeline through a first mounting bracket, so that the first proximity switch can sense the first photoelectric sensing patch when the opening and closing angle of the baffle plate reaches a set value;

the controller is connected with the first proximity switch and the standby water reducing agent adding pipeline, and the controller is used for receiving the induction signal of the first proximity switch and driving the standby water reducing agent adding pipeline to work after receiving the induction signal.

As a preferable scheme of the invention, the flow rate monitoring mechanism further comprises a gravity sensing structure, the gravity sensing structure is arranged right below a feed opening of the main water reducing agent adding pipeline and is used for receiving the main water reducing agent falling from the feed opening, and the gravity sensing structure can send a signal when no water reducing agent falls so that the controller drives the standby water reducing agent adding pipeline to work.

As a preferred scheme of the invention, the gravity sensing structure comprises a rotating plate arranged right below a feed opening of the main water reducing agent adding pipeline, two ends of the rotating plate are respectively rotatably connected with the outer wall of the main water reducing agent adding pipeline through a shaft rod, one end of the rotating plate is used for bearing the main water reducing agent falling from the feed opening, and the other end of the rotating plate is connected with the outer wall of the main water reducing agent adding pipeline through a spring;

a second photoelectric sensing patch is arranged at one end, far away from the spring, of the rotating plate, a second proximity switch is further arranged on one side of a feed opening of the main water reducing agent adding pipeline, and the second proximity switch can sense the second photoelectric sensing patch right after the rotating angle of the rotating plate reaches a set value;

the controller is used for receiving the induction signal of the second proximity switch and driving the standby water reducer adding pipeline to work after receiving the induction signal.

As a preferable scheme of the present invention, the spare water reducing agent adding pipeline and the main water reducing agent adding pipeline are arranged side by side, the spare water reducing agent adding pipeline is arranged above the main water reducing agent adding pipeline, a cover plate capable of covering the discharge port is arranged at the discharge port of the spare water reducing agent adding pipeline, the cover plate is connected with the blocking piece, and the cover plate and the blocking plate are perpendicular to each other so that the opening and closing size of the discharge port and the opening and closing size of the discharge port are in an inverse proportion relationship.

As a preferable scheme of the present invention, a plurality of tamping blocks are disposed on a surface of the baffle facing the feed opening, and a pressure spring is disposed at an edge of the feed opening.

The invention also provides an adding method of the water reducing agent adding system, which comprises the following steps:

step 100, starting a main water reducer adding pipeline to add a main water reducer at a preset flow rate;

200, detecting the flow rate of the main water reducing agent in real time by using a flow rate monitoring mechanism;

and 300, starting a standby water reducer pipeline to supplement the standby water reducer when the flow rate of the main water reducer is lower than a preset value.

As a preferred embodiment of the present invention, in step 300, the method further includes: and establishing an inverse proportional relation between the flow rate of the standby water reducing agent and the flow rate of the main water reducing agent so as to enable the superposed flow rate of the standby water reducing agent and the main water reducing agent to be equal to a preset value.

Compared with the prior art, the invention has the following beneficial effects:

according to the gypsum board slurry adding device, the two independent main water reducing agent adding pipelines and the independent standby water reducing agent adding pipelines are arranged, when the flow speed detecting mechanism detects that the flow speed of the main water reducing agent adding pipelines becomes small, namely the main water reducing agent adding pipelines are blocked to a certain degree, the standby water reducing agent adding pipelines can be automatically opened for adding, so that the water reducing agent amount in gypsum board slurry reaches a preset value, and the quality of gypsum board finished products is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

FIG. 1 is a schematic structural diagram of a water reducer addition system in normal operation of a main water reducer addition pipeline provided by an embodiment of the invention;

FIG. 2 is a schematic structural diagram of a water reducer adding system when a main water reducer adding pipeline is blocked according to an embodiment of the invention;

FIG. 3 is a flow chart of a method for adding a water reducing agent according to an embodiment of the present invention.

The reference numerals in the drawings denote the following, respectively:

10-main water reducing agent adding pipeline; 20-a spare water reducing agent adding pipeline; 30-a flow rate monitoring mechanism; 40-a control module;

11-a solid water reducing agent storage tank; 12-a delivery conduit; 13-a metering pump;

21-a liquid water reducing agent storage tank; 22-spring reamer;

31-a baffle plate; 32-rotating the plate; 33-a spring; 34-a second photo-electric sensing patch; 35-a second proximity switch; 36-a material smashing block; 37-a pressure spring;

41-a first photo-electric sensing patch; 42-first proximity switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.

As shown in fig. 1 and fig. 2, the present invention provides a water reducing agent adding system, which includes a main water reducing agent adding pipeline 10, a standby water reducing agent adding pipeline 20, a flow rate monitoring mechanism 30 and a control module 40;

the flow rate monitoring mechanism 30 is arranged on one side of a feed opening of the main water reducing agent adding pipeline 10, and the flow rate monitoring mechanism 30 is used for detecting the flow rate of the main water reducing agent in real time;

the control module 40 is connected to the flow rate monitoring mechanism 30 and the standby water reducer adding pipeline 20, and the control module 40 can open the standby water reducer adding pipeline 20 to supplement the water reducer when the flow rate of the main water reducer adding pipeline 10 is lower than a preset value.

Based on the existing structure of the adding system, the specific adding steps of the embodiment of the invention are as follows: the main water reducing agent adding pipeline 10 is opened at first, the main water reducing agent is introduced into the mixing machine for forming gypsum slurry, when the flow rate monitoring mechanism 30 detects that the flow rate of the main water reducing agent is reduced, namely the main water reducing agent adding pipeline 10 is blocked to a certain degree, the control module 40 automatically opens the standby water reducing agent adding pipeline 20 for adding operation, so that the water reducing agent amount in the gypsum board slurry reaches a preset value, and the quality of a gypsum board finished product is guaranteed.

The adding system can be applied to the field of adding the water reducing agent and can also be applied to any pipeline conveying system which is likely to be blocked;

aiming at the application field of adding the water reducing agent, the main water reducing agent adding pipeline 10 is used for conveying the solid water reducing agent, and the standby water reducing agent adding pipeline 20 is used for conveying the liquid water reducing agent, so that the solid water reducing agent has better effect than the liquid water reducing agent, saves the cost and can be used as a common water reducing agent; the liquid water reducing agent has high adding speed, is easy to store for a long time and can be used as a standby water reducing agent.

Specifically, the main water reducing agent adding pipeline 10 comprises a solid water reducing agent storage tank 11 and a conveying pipeline 12 connected with the solid water reducing agent storage tank 11, a metering pump 13 is installed on the conveying pipeline 12, and the control module 40 is used for controlling starting and stopping of the metering pump 13;

reserve water-reducing agent adds pipeline 20 include liquid water-reducing agent storage tank 21 and with the spring reamer 22 that liquid water-reducing agent storage tank 21 is connected, velocity of flow monitoring mechanism 30 sets up spring reamer 22's output one side.

The flow rate monitoring mechanism in the present invention is not particularly limited, and may detect the flow rate, and may be implemented by a flow meter, etc., but because the flow meter may cause a certain blocking dead angle when installed, in this embodiment, preferably, the flow rate monitoring mechanism 30 includes a blocking piece 31 hinged at the feed opening of the main water reducing agent adding pipeline 10, the main water reducing agent conveyed along the main water reducing agent adding pipeline 10 applies an acting force to the blocking piece 31 to rotate the blocking piece 31, and the opening and closing angle of the blocking piece 31 and the flow rate are in a positive proportional relationship;

the control module 40 can drive the standby water reducing agent adding pipeline 20 to start when the rotation angle of the baffle 31 is smaller than a set value.

The control module 40 comprises a first photoelectric sensing patch 41, a first proximity switch 42 and a controller;

the first photoelectric sensing patch 41 is arranged on one side of the baffle 31 far away from the hinge point of the baffle;

the first proximity switch 42 is installed on one side of the feed opening of the main water reducing agent adding pipeline 10 through a first installation support, so that the first proximity switch 42 can sense the first photoelectric sensing patch 41 when the opening and closing angle of the baffle 31 reaches a set value;

the controller with first proximity switch 42 and reserve water-reducing agent adds the pipeline 20 and is connected, the controller is used for receiving first proximity switch 42's sensing signal and drives after receiving the sensing signal reserve water-reducing agent adds the pipeline work.

In the flow rate monitoring device 30, once the plugging point of the main water reducing agent adding pipeline 10 is just at the feed opening, the water reducing agent gathered at the feed opening may make the blocking piece 31 in a normally open state, so that the control module 40 cannot receive a signal that the flow rate of the main water reducing agent is smaller than the preset value.

Therefore, the flow rate monitoring mechanism 30 in the embodiment of the present invention further includes a gravity sensing structure, the gravity sensing structure is disposed under the discharge opening of the main water reducing agent adding pipeline 10 and is used for receiving the main water reducing agent falling from the discharge opening, once the main water reducing agent adding pipeline is blocked, the gravity sensing mechanism is not stressed, and the gravity sensing mechanism can send a signal when no water reducing agent falls so that the controller drives the spare water reducing agent adding pipeline 20 to work.

Specifically, the gravity sensing structure comprises a rotating plate 32 arranged right below a feed opening of the main water reducing agent adding pipeline 10, two ends of the rotating plate 32 are respectively and rotatably connected with the outer wall of the main water reducing agent adding pipeline 10 through a shaft rod, one end of the rotating plate 32 is used for receiving the main water reducing agent falling from the feed opening, and the other end of the rotating plate 32 is connected with the outer wall of the main water reducing agent adding pipeline 10 through a spring 33;

a second photoelectric sensing patch 34 is arranged at one end of the rotating plate 32, which is far away from the spring 33, a second proximity switch 35 is further arranged at one side of the feed opening of the main water reducing agent adding pipeline 10, and the second proximity switch 35 can sense the second photoelectric sensing patch 34 just after the rotating angle of the rotating plate 32 reaches a set value;

the controller is used for receiving the induction signal of the second proximity switch 35 and driving the standby water reducing agent adding pipeline 20 to work after receiving the induction signal.

Reserve water-reducing agent adds pipeline 20 with main water-reducing agent adds pipeline 10 and sets up side by side, just reserve water-reducing agent adds pipeline 20 set up in main water-reducing agent adds the top of pipeline 10 reserve water-reducing agent adds the discharge gate department of pipeline 20 and is provided with and can covers the apron 21 of discharge gate, apron 21 with separation blade 31 is connected, just apron 21 with baffle 31's mutually perpendicular, then the angle of opening and shutting of apron and the angle of opening and shutting of baffle sum equals 90 degrees, when one of them angle of opening and shutting grow, another then reduces, so that the size of opening and shutting of discharge gate with the size of opening and shutting of discharge gate is the inverse proportion relation, avoids reserve water-reducing agent to add too much or the additive amount that has influenced total water-reducing agent too little.

Because main water-reducing agent's jam position is indefinite, when the jam site is located the interlude, is difficult for dredging, when the jam site is in feed opening department, can baffle 31 orientation the one side of feed opening is provided with a plurality of material of smashing 36 the edge of feed opening is provided with compression spring 37, when reserve water-reducing agent flows along reserve water-reducing agent pipeline 20, and 21 atresss of apron are opened, thereby baffle 31 also takes place to rotate and makes material of smashing 36 and block the contact of site and dredge the operation, and compression spring 37's setting can make the material of smashing take place reciprocating motion in order to smash the material in succession.

In addition, the conveying of the standby water reducing agent adding pipeline 20 can be changed into intermittent conveying, so that the cover plate 21 is stressed intermittently, and the baffle plate 31 rotates back and forth to match with the tamping block 36 for smashing for multiple times.

As shown in FIG. 3, the invention also provides an adding method of the water reducing agent adding system, which comprises the following steps:

step 100, starting a main water reducer adding pipeline to add a main water reducer at a preset flow rate;

200, detecting the flow rate of the main water reducing agent in real time by using a flow rate monitoring mechanism;

and 300, starting a standby water reducer pipeline to supplement the standby water reducer when the flow rate of the main water reducer is lower than a preset value.

Wherein, in step 300, further comprising: and establishing an inverse proportional relation between the flow rate of the standby water reducing agent and the flow rate of the main water reducing agent so as to enable the superposed flow rate of the standby water reducing agent and the main water reducing agent to be equal to a preset value.

The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.