Multi-fiber polymer anti-crack waterproof mortar and its conveying system

Abstract

The application discloses a kind of multi-fiber polymer anti-crack waterproof mortar and its conveying system, including main conveying pipe, the main conveying pipe includes inclined section, upper flat section and lower flat section, the upper and lower sides of inclined section are integrally connected with upper flat section and lower flat section respectively, further include reflux pipeline, the reflux pipeline includes guide pipe, the guide pipe is adapted to the inclined direction of inclined section, the upper and lower ends of guide pipe can be communicated with upper flat section and lower flat section respectively, and the upper layer material of upper flat section can be conveyed downward to lower flat section by guide pipe.The mortar in the application, wherein mixed with fiber material, can form a certain anti-cracking effect, reduce the possible subsequent water leakage, and cooperate with the conveying system to maintain the uniformity of mortar material during conveying.

Description

Technical Field

[0001] This invention relates to the field of mortar production technology, and more specifically, to a multi-fiber polymer crack-resistant and waterproof mortar, and also to a mortar conveying system. Background Technology

[0002] In mortar transportation, specialized mortar pumps are typically used in conjunction with pipelines. The mortar flows along the pipelines, delivering it to the required location. In some scenarios, it may be necessary to pump the mortar to a considerable height, resulting in a long transportation distance. This type of pipeline presents significant challenges when transporting fiber mortar. Different materials within the mortar exhibit varying degrees of resistance within the pipeline. During transportation, materials with higher resistance, such as steel fibers and stainless steel fibers, experience greater resistance and tend to accumulate near the lower section of the pipeline over time, gradually increasing in concentration.

[0003] For some mortars, to achieve crack resistance, fibers such as steel fibers and stainless steel fibers are mixed into the mortar to resist cracking, prevent subsequent cracking, and provide a certain degree of waterproofing. However, because the mortar contains a certain amount of steel fibers, during the slow upward transport process, the mortar is prone to segregation and blockage, affecting the uniformity of the steel fiber content distribution.

[0004] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-fiber polymer crack-resistant and waterproof mortar and its conveying system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mortar conveying system includes a main conveying pipe, which comprises an inclined section, an upper straight section, and a lower straight section. The upper and lower sides of the inclined section are integrally connected to the upper straight section and the lower straight section, respectively. The system also includes a backflow pipe, which comprises a guide pipe adapted to the inclination direction of the inclined section. The upper and lower ends of the guide pipe are respectively connected to the upper straight section and the lower straight section. The upper material of the upper straight section can be conveyed downward to the lower straight section through the guide pipe.

[0008] The present invention is further configured such that the reflux pipeline also includes a lower buffer tank, the upper side of which is integrally connected to an upper interface, the upper interface being connected to the lower side of the lower straight section; the lower end of the conduit is connected to the lower buffer tank.

[0009] The present invention is further configured such that a second pusher plate is installed inside the lower buffer tank, the second pusher plate is adapted to the upper interface, and the second pusher plate can be adjusted up and down by a second telescopic rod, so as to send the material in the lower buffer tank from the upper interface into the lower straight section.

[0010] The present invention is further configured such that a T-connector is connected to the lower straight section, and the upper interface is connected to the T-connector.

[0011] The present invention is further configured such that the reflux pipeline also includes an upper buffer tank, and the lower side of the upper buffer tank is integrally connected to a lower interface, which is connected to the upper straight section.

[0012] The present invention is further configured such that the reflux pipeline also includes a feed pipe and a connecting pipe, one end of the feed pipe is connected to the upper end of the conduit, and the other end of the feed pipe is connected to the upper buffer tank through the connecting pipe;

[0013] The present invention is further configured such that a feeding driver is installed inside the feeding pipe, and the feeding driver is capable of conveying material from the connecting pipe to the conduit.

[0014] The present invention is further configured such that the feeding driver includes a conveying shaft and a spiral conveying blade, wherein the spiral conveying blade is rotatably mounted inside the feeding pipe via the conveying shaft for spiral conveying of materials.

[0015] The present invention is further configured such that a separation cylinder is installed inside the upper buffer tank, the axis of the separation cylinder is arranged vertically, the lower end of the separation cylinder is open and opposite to the lower interface; the upper end of the separation cylinder is closed and fixedly connected to a rotating shaft, the rotating shaft being rotatably mounted on the upper buffer tank; a gap groove is provided on the upper part of the outer periphery of the separation cylinder, the gap groove allowing some material to pass through.

[0016] The present invention is further configured such that an annular gap groove is formed between the outer periphery of the separating cylinder and the inner periphery of the upper buffer tank; the outer periphery of the upper buffer tank is provided with a discharge port, and the discharge port is connected to a connecting pipe;

[0017] The present invention is further configured such that the upper section of the first rotating shaft extends out of the upper buffer tank and is driven by a driver; the first rotating shaft is a hollow shaft, and a telescopic rod passes through the first rotating shaft, the outer circumference of the first telescopic rod and the inner circumference of the first rotating shaft can slide axially relative to each other and rotate axially.

[0018] The invention is further configured such that the lower end of the telescopic rod extends into the separation cylinder and is fixedly installed with a push plate. The push plate slides and adapts to the inner circumference of the separation cylinder, and the material in the separation cylinder can be reversed from the lower interface to the upper straight section through the push plate.

[0019] The present invention also provides a multi-fiber polymer crack-resistant and waterproof mortar, characterized in that it comprises a substrate and steel fibers, and is transported using a mortar conveying system as described above.

[0020] In summary, the present invention has the following beneficial effects:

[0021] The mortar conveying system, by setting up a backflow pipeline, allows the upper layer of mortar in the upper straight section, which has a lower steel fiber content, to be separated and conveyed downwards during the mortar conveying process. This mortar is then backflowed into the lower straight section, where it is mixed with the mortar in the lower straight section. After mixing, the steel fiber content of the mortar in the lower straight section and near the lower half of the conduit can be appropriately reduced, thus achieving a proper and uniform balance of steel fiber content in the mortar. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a mortar conveying system in this embodiment;

[0023] Figure 2 This is a schematic diagram of the lower buffer tank in this embodiment;

[0024] Figure 3 This is a schematic diagram of the feeding pipe in this embodiment;

[0025] Figure 4 This is a schematic diagram of the upper buffer tank in this embodiment.

[0026] Reference numerals: Main conveying pipe 1; Inclined section 10; Lower straight section 11; Upper straight section 12; Reverse flow pipe 2; T-connector 1 21; Lower buffer tank 22; Upper interface 221; Push plate 222; Telescopic rod 223; Conduit 23; Shut-off valve 231; Upper pipe end 232; Lower pipe end 233; Feeding pipe 24; Conveying shaft 241; Spiral conveying blade 242; Connecting pipe 25; Upper buffer tank 26; Lower interface 261; Separating cylinder 262; Rotating shaft 1 263; Gap groove 264; Push plate 1 265; Telescopic rod 1 266; Annular gap groove 267; Discharge port 268; T-connector 2 27. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The embodiment discloses a mortar conveying system, including a main conveying pipe 1, through which mortar materials are conveyed. A conveying pump is connected to one end of the main conveying pipe 1, which can convey mortar by pump pressure and can convey mortar from the other end of the main conveying pipe 1, thereby realizing the conveying of mortar materials.

[0029] Reference Figure 1 As shown, the main conveying pipe 1 is divided into several sections, specifically including an inclined section 10, an upper straight section 12 and a lower straight section 11. The inclined section 10 is inclined, and the upper and lower sides of the inclined section 10 are integrally connected to the upper straight section 12 and the lower straight section 11, respectively.

[0030] For conveying scenarios with a steep incline and a high pumping stroke, such as when the incline angle of the inclined section 10 exceeds 60° and the height forms a conveying pipeline exceeding 20 meters, this type of pipeline presents significant problems when conveying fiber mortar. Because the mortar contains a certain amount of steel fibers, it is prone to segregation and blockage during slow upward transport. Since steel fibers are relatively heavier than other parts of the mortar and have greater transport resistance, more steel fibers tend to accumulate on the lower part of the inclined section 10, specifically near the lower end of the straight section 11. As the mortar continues to be conveyed, the amount of steel fibers trapped near the lower end of the inclined section 10 gradually increases, meaning the steel fiber content in this section of the pipeline gradually increases, while the previously conveyed steel fiber content decreases. This leads to a certain degree of deviation in the steel fiber content, affecting the uniformity of steel fiber distribution in the mortar.

[0031] Especially when the pipeline is suspended, the mortar is in a static state in the pipeline. The steel fibers in it will sink due to vibration and their own weight, which will cause the lower half of the inclined section 10 and the lower straight section 11 near the inclined section 10 to form steel fiber aggregation, affecting the uniformity of the mortar transported by the pipeline.

[0032] In this embodiment, the mortar conveying system also includes a backflow pipe 2, which includes a conduit 23. The conduit 23 is adapted to the inclination direction of the inclined section 10 and also has an inclined up-and-down orientation. The upper and lower ends of the conduit 23 can be connected to the upper straight section 12 and the lower straight section 11, respectively. The upper layer of material in the upper straight section 12 can be conveyed downward to the lower straight section 11 through the conduit 23. During the mortar conveying process, the upper layer of mortar in the upper straight section 12 (which has a low steel fiber content) can be separated and conveyed downward through the conduit 23, and then backflowed back into the lower straight section 11. It is then mixed with the mortar in the lower straight section 11 (which has a high steel fiber content). After the two are mixed, the steel fiber content of the mortar in the lower straight section 11 and near the lower half of the conduit 23 can be appropriately reduced, thereby achieving a suitable and uniform balance of steel fiber content in the mortar.

[0033] Reference Figure 2 As shown, the reflux pipeline 2 also includes a lower buffer tank 22, on the upper side of which an upper interface 221 is integrally connected. The upper interface 221 communicates with the lower side of the lower straight section 11. Specifically, a tee connector 21 is connected to the lower straight section 11, with two connectors on the left and right sides to connect the tee connector 21 into the lower straight section 11. The tee connector 21 also has a downward interface, with the upper interface 221 connected to the lower interface of the tee connector 21, thereby connecting the upper interface 221 into the lower straight section 11.

[0034] The lower end 233 of the conduit 23 is connected to the lower buffer tank 22, allowing the slurry transported in reverse flow to be fed into the lower buffer tank 22. Some of the slurry in the lower buffer tank 22 can be mixed with the slurry in the lower straight section 11, thereby achieving a uniform mixing effect of mortar in different sections.

[0035] Furthermore, a push plate 222 is installed inside the lower buffer tank 22. The outer diameter profile of the push plate 222 is compatible with the inner diameter profile of the upper interface 221. The push plate 222 can be adjusted up and down by the telescopic rod 223, which can send the material in the lower buffer tank 22 from the upper interface 221 into the lower straight section 11.

[0036] In addition, the conduit 23 is also equipped with a shut-off valve 231. By controlling the shut-off valve 231, the opening and closing status of the conduit 23 can be controlled, thereby controlling the backflow of the slurry. In the initial stage of operation, the steel fibers of the material in the pipeline are in a relatively uniform state, and the backflow circulation is suspended. After a period of operation, the backflow circulation can be operated intermittently to homogenize the material in the pipeline. When the slurry in the upper straight section 12 flows back downward, the amount of material conveyed in the inclined section 10 of the main conveying pipe 1 will further increase, which can drive the aggregates in the inclined section 10 of the main conveying pipe 1 to flow upward more quickly, thereby reducing the resistance in the conveying process and facilitating the uniformity of the slurry output.

[0037] Additionally, refer to Figure 1 As shown, the reflux pipeline 2 also includes an upper buffer tank 26, with a lower interface 261 integrally connected to the lower side of the upper buffer tank 26. The lower interface 261 is connected to the upper straight section 12. The upper buffer tank 26 can be connected to the upper side of the upper straight section 12, so that some of the slurry in the upper straight section 12 can automatically flow into the upper buffer tank 26.

[0038] Because the inner cavity of the upper buffer tank 26 is larger than that of the upper straight section 12, and its position is higher than that of the upper straight section 12, the slurry entering the upper buffer tank 26 will form a higher slurry height within the upper buffer tank 26, and the slurry flow within the upper buffer tank 26 will be slower. This slowdown within the upper buffer tank 26 will lead to segregation, allowing for the active segregation of some of the slurry from the upper straight section 12. Specifically, the upper layer of slurry in the upper buffer tank 26 will have a lower steel fiber content, resulting in a low-steel-fiber mortar.

[0039] During the backflow circulation process, the upper layer of mortar in the upper buffer tank 26 can be backflowed downward through the backflow pipe 2. On the one hand, the mortar with low steel fiber content in the upper straight section 12 is separated, and the steel fiber content in the upper straight section 12 can be appropriately increased. On the other hand, the mortar with low steel fiber content separated can be transported downward to the lower straight section 11, which can help to make the mortar in the lower straight section 11 and the inclined section 10 more uniform.

[0040] Additionally, refer to Figure 1 , Figure 3 , Figure 4 As shown, the reflux pipeline 2 also includes a feed pipe 24 and a connecting pipe 25. One end of the feed pipe 24 is connected to the upper pipe end 232 of the conduit 23, and the other end of the feed pipe 24 is connected to the upper buffer tank 26 through the connecting pipe 25. The upper buffer tank 26 can be connected to the feed pipe 24 through the conduit 23.

[0041] A feed driver is installed inside the feed pipe 24, which can convey material from the connecting pipe 25 to the guide pipe 23. When the feed driver inside the feed pipe 24 is working, it can convey the slurry in the feed pipe 24 downward; moreover, by controlling the operating power of the feed driver, the size of the backflow flow can be adjusted, so that the feed driver can also be driven normally for backflow drive when the main conveying pipe 1 is conveying normally.

[0042] Specifically, refer to Figure 3 As shown, the feeding drive includes a conveying shaft 241 and a spiral conveying blade 242. The spiral conveying blade 242 is rotatably mounted inside the feeding pipe 24 via the conveying shaft 241 for spiral conveying of materials. The conveying shaft 241 extends outward and can be driven to rotate. The rotation of the spiral conveying blade 242 creates a downward countercurrent driving force on the material. By controlling the rotation speed, the magnitude of the countercurrent flow can be balanced and controlled.

[0043] Furthermore, referring to Figure 4As shown, a separation cylinder 262 is installed inside the upper buffer tank 26. The axis of the separation cylinder 262 is vertically oriented, with the lower end of the separation cylinder 262 open and opposite to the lower interface 261. The upper end of the separation cylinder 262 is closed and fixedly connected to a rotating shaft 263. The rotating shaft 263 extends upward from the upper side wall of the upper buffer tank 26 and is rotatably connected to the upper side wall of the upper buffer tank 26. A rotating seal is installed at the connection to achieve a seal. The upper end of the rotating shaft 263 is connected to a rotary actuator, which can drive the rotating shaft 263 to rotate. The separation cylinder 262, which is integrally connected to the lower end of the rotating shaft 263, can rotate synchronously.

[0044] A gap groove 264 is formed in the upper part of the outer periphery of the separating cylinder 262. The gap groove 264 allows some material to pass through and can separate the steel fibers, so that most of the steel fibers can be trapped in the separating cylinder 262. An annular gap groove 267 is formed between the outer periphery of the separating cylinder 262 and the inner periphery of the upper buffer tank 26. A discharge port 268 is formed in the outer periphery of the upper buffer tank 26, and the discharge port 268 is connected to the connecting pipe 25.

[0045] During the rotation of the separator 262, the slurry inside the separator 262 will be subjected to centrifugal separation. A large amount of slurry will be separated from the gap groove 264 and then enter the feed pipe 24 through the connecting pipe 25 from the annular gap groove 267. In the feed pipe 24, under the action of the feed driver, it can flow back to the guide tube 23 and the lower straight section 11 to dilute the slurry in the lower straight section 11 and balance the steel fiber content in the lower straight section 11.

[0046] A large amount of mortar containing steel fibers can be trapped in the separation cylinder 262. Then, the mortar in the lower half of the separation cylinder 262 can be fed downward into the upper straight section 12, which can increase the steel fiber content of the mortar in the upper straight section 12.

[0047] Reference Figure 4 As shown, the rotating shaft 263 is a hollow shaft, and a telescopic rod 266 coaxially passes through it. The telescopic rod 266 and the rotating shaft 263 can rotate relative to each other axially and slide along their axes. Annular seals are installed on the outer circumference of the telescopic rod 266 and the inner circumference of the rotating shaft 263 to ensure smooth rotation and sliding movement of both, and to maintain a relatively sealed connection.

[0048] The lower end of the telescopic rod 266 extends downward and can enter the separator cylinder 262, and a push plate 265 is fixedly installed at the lower end of the telescopic rod 266. The upper end of the telescopic rod 266 can be driven to rise and fall by a lifting driver, so that the push plate 265 can be smoothly adjusted in and out of the separator cylinder 262.

[0049] Specifically, push plate 265 slides and adapts to the inner circumference of separation cylinder 262, and the inner circumference of separation cylinder 262 also adapts to the inner circumference of lower interface 261. During the lifting and lowering movement, push plate 265 can move up and down along the inner circumferences of separation cylinder 262 and lower interface 261. By pushing down, the material in separation cylinder 262 can be reversed from lower interface 261 to upper straight section 12, thereby mixing the slurry with a high steel fiber concentration in separation cylinder 262 into upper straight section 12, balancing the steel fiber content of the mortar in upper straight section 12, and thus making the slurry distribution in the main conveying pipe 1 more uniform.

[0050] This embodiment also discloses a multi-fiber polymer crack-resistant and waterproof mortar, comprising a substrate and steel fibers. The substrate, by weight, comprises the following components: 20-30 parts cement, 50-70 parts natural river sand, 12-18 parts heavy calcium carbonate, 1-3 parts polypropylene fibers, 1-3 parts ethylene-vinyl acetate copolymer, and 1-3 parts silicone waterproofing agent. During mortar mixing, the various components of the substrate are mixed, and then an appropriate proportion of water is added to form a mortar slurry. Then, steel fibers are mixed into the mortar slurry, with a steel fiber content of 20-50 kg / m³.

[0051] The dimensional parameters of steel fibers can be set more specifically according to production needs. Through the combined effect of steel fibers and chemical fibers, the crack resistance of concrete can be further improved, the generation of cracks can be reduced, and thus waterproofing and leakage can be prevented.

[0052] Because the mortar in this embodiment contains a certain amount of steel fibers, it can be transported using the mortar conveying system described in the previous embodiment. During high-stroke conveying, this improves the uniformity of the mortar and prevents segregation of the mortar within the pipeline during long-distance, high-stroke conveying.

[0053] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A mortar conveying system, characterized in that, The system includes a main conveying pipe (1), which includes an inclined section (10), an upper straight section (12), and a lower straight section (11). The upper and lower sides of the inclined section (10) are integrally connected to the upper straight section (12) and the lower straight section (11), respectively. The system also includes a counterflow pipe (2), which includes a conduit (23). The conduit (23) is adapted to the inclined direction of the inclined section (10). The upper and lower ends of the conduit (23) can connect the upper straight section (12) and the lower straight section (11), respectively. The upper material of the upper straight section (12) can be conveyed downward to the lower straight section (11) through the conduit (23). The reflux pipeline (2) also includes a lower buffer tank (22), the upper side of which is integrally connected to an upper interface (221), the upper interface (221) being connected to the lower side of the lower straight section (11); the lower end (233) of the conduit (23) is connected to the lower buffer tank (22).

2. The mortar conveying system according to claim 1, characterized in that, The lower buffer tank (22) is equipped with a push plate two (222), which is adapted to the upper interface (221). The push plate two (222) can be adjusted up and down by the telescopic rod two (223), which can send the material in the lower buffer tank (22) from the upper interface (221) into the lower straight section (11).

3. The mortar conveying system according to claim 1, characterized in that, The lower straight section (11) is connected to a tee connector (21), and the upper interface (221) is connected to the tee connector (21).

4. A mortar conveying system according to claim 1, characterized in that, The reflux pipeline (2) also includes an upper buffer tank (26), and the lower side of the upper buffer tank (26) is integrally connected to a lower interface (261), which is connected to the upper straight section (12).

5. A mortar conveying system according to claim 4, characterized in that, The reflux pipeline (2) also includes a feed pipe (24) and a connecting pipe (25). One end of the feed pipe (24) is connected to the upper pipe end (232) of the conduit (23), and the other end of the feed pipe (24) is connected to the upper buffer tank (26) through the connecting pipe (25). The feeding pipe (24) is equipped with a feeding driver, which can transport materials from the connecting pipe (25) to the guide pipe (23).

6. A mortar conveying system according to claim 5, characterized in that, The feeding drive includes a conveying shaft (241) and a spiral conveying blade (242). The spiral conveying blade (242) is rotatably mounted in the feeding pipe (24) via the conveying shaft (241) for spiral conveying of materials.

7. A mortar conveying system according to claim 4, characterized in that, The upper buffer tank (26) is equipped with a separator (262), the axis of the separator (262) is arranged vertically, the lower end of the separator (262) is open and opposite to the lower interface (261); the upper end of the separator (262) is closed and fixedly connected to a rotating shaft (263), the rotating shaft (263) is rotatably installed on the upper buffer tank (26); a gap groove (264) is opened in the upper part of the outer periphery of the separator (262), the gap groove (264) can allow some material to pass through.

8. A mortar conveying system according to claim 7, characterized in that, An annular gap groove (267) is formed between the outer periphery of the separation cylinder (262) and the inner periphery of the upper buffer tank (26); a discharge port (268) is provided on the outer periphery of the upper buffer tank (26), and the discharge port (268) is connected to the connecting pipe (25); The upper section of the first rotating shaft (263) extends out of the upper buffer tank (26) and is driven by a driver; the first rotating shaft (263) is a hollow shaft, and a telescopic rod (266) passes through the first rotating shaft (263); the outer circumference of the telescopic rod (266) and the inner circumference of the first rotating shaft (263) can slide axially and rotate axially. The lower end of the telescopic rod (266) extends into the separator (262) and is fixedly installed with a push plate (265). The push plate (265) is slidably adapted to the inner circumference of the separator (262). The material in the separator (262) can be reversed from the lower interface (261) to the upper straight section (12) through the push plate (265).

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