Concrete additive preparation system and process thereof

Abstract

The invention provides a concrete additive preparation system and process, the concrete additive preparation system comprises a stirring tank and agent injectors, the agent injectors inject agents into the stirring tank, a plurality of agent injectors with different specifications are provided, and each agent injector is used for quantitatively injecting one agent, so that the added agents are in required design proportions; the medicament injector comprises a main body which is horizontally arranged and is internally provided with an injection cavity, a push rod is axially and horizontally mounted on the main body in a sliding manner, a piston block made of rubber is fixedly sleeved on the push rod, a piston disc made of metal is sleeved on the push rod in a sliding fit manner, and the piston disc and the piston block are attracted and tightly attached into a whole; when the piston block is separated from the piston disc and moves leftwards, the injection cavity outputs medicine, and when the piston block is attached to the piston disc and moves rightwards, the injection cavity sucks the medicine. The concrete additive preparation system and the process thereof simply and effectively realize rapid quantitative addition of various medicament materials in the preparation process of the concrete additive.

Description

Technical Field

[0001] This invention relates to concrete additive preparation technology, and more specifically, to a concrete additive preparation system and process. Background Technology

[0002] In the preparation process of concrete additives, many liquid agents need to be added. For example, when preparing concrete antifreeze additives, the antifreeze component, air-entraining component, water-reducing component, and early-strength component need to be mixed in a mass ratio of 1500:15:150:1000. One of the key points in the preparation is to ensure the quantitative addition of the above-mentioned liquid agents. The early-strength component and antifreeze component also need to be prepared in a certain proportion. For example, the early-strength component requires 2 parts by mass of triethanolamine, 65 parts by mass of sodium sulfate, and 30 parts by mass of sodium nitrite. Therefore, it can be said that concrete additives require multiple mixing and preparation of materials in a fixed proportion to gradually complete the entire process. In the existing technology, the addition of these materials in a fixed proportion is usually done by weighing them with special measuring equipment and then pouring them into the mixing tank for mixing. This method is crude and simple, but inefficient, and the accuracy of the quantitative measurement depends entirely on the level of manual measurement. While some flow meters on the market can measure the amount of chemicals flowing through them well, they also have problems: For the preparation of concrete additives, if mass production is required, continuous chemical delivery over a long period of time is necessary; otherwise, the flow meter cannot measure a sufficient amount of chemical dosage. Moreover, in actual production, it is not feasible to set up a large-diameter pipeline system and equip it with a large-diameter flow meter specifically for chemical delivery, as this is neither economical nor practical. Furthermore, flow meters have extremely high installation requirements, such as pipe length, height, inlet and outlet diameters, and whether a flow shroud is needed. The installation conditions are very strict. In fact, the amount of concrete additives added actually has a fluctuating range, and as long as it is within this range, the quantity is relatively constant. Therefore, these flow meters are not actually necessary. Summary of the Invention

[0003] The problem to be solved by the present invention is to provide a concrete additive preparation system and process that addresses the above-mentioned shortcomings in the prior art, thereby solving the problem that it is difficult to balance the production efficiency and cost of concrete additives in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a concrete additive preparation system, comprising a mixing tank and a reagent injector, wherein the reagent injector injects reagent into the mixing tank, and there are several reagent injectors of different specifications, each reagent injector being used to quantitatively inject one reagent so that the various reagents added are in the required design ratio; wherein, the reagent injector includes a horizontally arranged main body with an injection chamber inside, and a push rod is axially and horizontally slidably mounted on the main body, a rubber piston block is fixedly sleeved on the push rod, and a metal piston disc is slidably sleeved on the push rod, the piston disc and the piston block attracting and adhering to each other as one; when the piston block separates from the piston disc and moves to the left, the injection chamber outputs reagent, and when the piston block adheres to the piston disc and moves to the right, the injection chamber draws in reagent.

[0005] Preferably, a strip-shaped hole is provided along the axial direction of the push rod on one side of the piston block, and a wedge-shaped groove is provided on the top side of the piston disc;

[0006] The left end of the main body has an output channel, the outlet of which is connected to an output pipe equipped with a one-way valve, and its inlet is connected to the injection chamber. A sliding pin that can engage with the wedge groove is elastically and telescopically installed on the inner wall of the right end of the main body. The sliding pin is connected to the left end of the push rod by a pull rope.

[0007] The bottom left end of the main body is connected to an input pipe. A sealing wedge with a pointed tip is vertically slidably installed in the drainage hole connected to the outlet of the input pipe. The sealing wedge can seal the outlet end of the drainage hole in the injection chamber. The bottom end of the sealing wedge is fixed to a vertically slidable sliding column through a connecting rod. The sliding column is connected to the bottom right end of the main body through a cylindrical spring, so that the sealing wedge opens the outlet end of the drainage hole under normal conditions.

[0008] When the piston disc is located at the right end of the injection chamber, the sliding pin engages with the wedge groove to fix the piston disc. When the push rod moves to the left under the drive of a driving component, it causes the piston block and piston disc to separate and move to the left. During the movement to the left, the strip hole and the output channel are always kept in cross-connection. At the same time, the push rod pulls the pull rope to gradually straighten it. When the piston block reaches the left end of the injection chamber, the pull rope has been straightened, causing the sliding pin to disengage from the wedge groove. The piston disc quickly moves to the left and adheres tightly to the piston block.

[0009] Furthermore, the strip hole is a rectangular hole, and when the piston block moves to the right end, the rectangular hole does not intersect with the output channel.

[0010] Furthermore, the one-way valve includes a valve plug and a tension spring. The valve plug is slidably installed in a stepped hole in the output pipe. One end of the tension spring is connected to the valve plug, and the other end is connected to the inner wall of the output pipe. Under normal conditions, the tension spring pulls the valve plug to the position where the stepped hole is closed.

[0011] Furthermore, the one-way valve also includes a slide rod, one end of which is fixed to the bottom end of the valve plug, and the other end is slidably mounted on a crossbar. The tension spring is connected to the output pipe through the crossbar.

[0012] Furthermore, the longitudinal section of the top of the sealing wedge is an isosceles triangle with a rounded apex.

[0013] Furthermore, the connecting rod is L-shaped, and one section of the connecting rod is perpendicularly fixed to the sliding column.

[0014] Furthermore, the left and right ends of the piston disc are rounded, the wedge groove is a triangular groove, and the bottom surface of the sliding pin is an arc surface.

[0015] Furthermore, the pull rope includes a section of elastic rope.

[0016] Meanwhile, the present invention also introduces a concrete additive preparation process, which mainly uses the concrete additive preparation system of the present invention to add various agents. During the addition, the agent containers of various agents are placed horizontally under the corresponding main body and connected to the input pipe, and it is ensured that at the initial moment, the piston block is located at the left end of the injection chamber and the piston disc is in close contact with the piston block. Pulling the right end of the push rod to the right causes the piston block and piston plate to move horizontally to the right. After passing the sealing wedge, the sealing wedge automatically pops out, opening the outlet end of the drainage hole. The piston block and piston plate continue to move to the right, and the medicine in the lower medicine container is drawn into the injection chamber through the drainage hole. When the piston block moves to the right end, the lower side of the piston plate presses down the sliding column, causing the sealing wedge to move down and block the drainage hole. At the same time, the sliding pin is engaged in the wedge groove, and the piston plate is temporarily fixed. When no more medicine flows into the injection chamber, push the push rod to the left to overcome the magnetic attraction between the piston block and the piston plate. The piston block separates from the piston plate and moves to the left alone, thereby injecting the medicine drawn into the injection chamber into the output pipe through the output channel and the strip hole. This pushes the valve disc in the one-way valve to open, injecting the corresponding medicine into the mixing tank, and then stirring and mixing.

[0017] Compared with existing technologies, this invention has the following advantages: This invention adopts a simple and effective mechanical structure (agent injector) of the same type and a flexible linkage mechanism of multiple components, which can effectively realize the one-time, large-batch, rapid, and quantitative addition of various reagent materials in the concrete additive preparation process. It only requires the production of reagent injectors of different specifications. The structure is simple yet ingenious, easy to understand, and operators can manufacture, install, and maintain it themselves. The entire operation process is simple and reliable, which can greatly improve the efficiency of concrete additive preparation and can be extended to the automatic quantitative addition process of liquid materials in other fields. The hardware manufacturing cost of the required preparation system is low and easy to maintain.

[0018] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of one structure of the present invention;

[0020] Figure 2 A schematic diagram of a check valve on an output pipeline;

[0021] Figure 3 This is a diagram showing the engagement structure between the piston disc and the sliding column when the piston disc moves to the right end.

[0022] The components include: main body 1, piston block 2, piston disc 3, injection chamber 4, push rod 5, strip hole 6, output channel 7, output pipe 8, one-way valve 9, valve plug 901, tension spring 902, slide rod 903, crossbeam 904, sliding pin 10, wedge groove 11, pull rope 12, input pipe 13, drainage hole 14, sealing wedge block 15, connecting rod 16, sliding column 17, cylindrical spring 18, spherical end 19, and magnetic pole 20. Detailed Implementation

[0023] To make the technical means, creative features, objectives, and effects of this invention clearer and easier to understand, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0024] This embodiment specifically describes a concrete additive preparation system. The main structure includes a mixing tank and a reagent injector. Several reagent injectors of different specifications are used to inject a specific type of reagent into the mixing tank, ensuring that the added reagents are in the required design proportions. This allows for precise and accurate addition of the corresponding reagents in a single injection, making it very convenient and accurate. For specific implementation details, please refer to [reference needed]. Figure 1This drug injector includes a horizontally arranged main body 1 with an internal injection chamber 4. A push rod 5 is axially and horizontally slidably mounted on the main body 1. A rubber piston block 2 is fixedly sleeved on the push rod 5 to achieve a better dynamic sealing fit. A metal piston disc 3 is also slidably sleeved on the push rod 5. The piston disc 3 can be made of stainless steel, or preferably hard alloy. The piston disc 3 and the piston block 2 are attracted and tightly attached to each other to form an assembled piston component. This assembled piston component must meet the following requirements: when the piston block 2 separates from the piston disc 3 and moves to the left, the injection chamber 4 outputs the drug; when the piston block 2 and the piston disc 3 are attached to each other and move to the right, the injection chamber 4 draws in the drug, thereby quantitatively realizing the rapid injection addition of the corresponding drug.

[0025] Continue reading Figure 1Specifically, in this embodiment, the piston block 2 has a push rod 5 with a strip-shaped hole 6 along its axial direction on one side, and the piston disc 3 has a wedge-shaped groove 11 on its top side, such as an isosceles triangular cavity with the vertex facing downwards. The left end of the main body 1 has an output channel 7, which can be a [-shaped structure]. The outlet of the output channel 7 is connected to an output pipe 8 equipped with a one-way valve 9. The one-way valve 9 only allows the medicine to flow from the output channel 7 into the output pipe 8, while the inlet of the output channel 7 is connected to the injection chamber 4 to allow the medicine to flow out from inside the injection chamber 4. Simultaneously, in this embodiment, a sliding pin 10 that can engage with the wedge-shaped groove 11 is elastically and telescopically installed on the inner wall of the right end of the main body 1. The sliding pin 10 can be spring-connected and installed in the inner wall of the main body 1. Under normal conditions, the bottom end of the sliding pin 10 protrudes from the inner wall of the main body 1 and enters the injection chamber 4. The sliding pin 10 is connected to the left end of the push rod 5 via a pull rope 12, and under normal conditions, the pull rope 12 is in a relaxed, naturally bent state. Correspondingly, an input pipe 13 is also connected to the bottom left end of the main body 1. The input pipe 13 is connected to a medicine container containing medicine. A sealing wedge 15 with a pointed tip is vertically slidably installed in the drainage hole 14 connected to the outlet of the input pipe 13. The sealing wedge 15 can seal the outlet end of the drainage hole 14 in the injection chamber 4. The bottom end of the sealing wedge 15 is fixed to a vertically slidable slide column 17 through a connecting rod 16. The slide column 17 is connected to the bottom right end of the main body 1 through a cylindrical spring 18, so that the sealing wedge 15 opens the outlet end of the drainage hole 14 under normal conditions, providing a prerequisite for the medicine in the medicine container to be drawn in. For example, the connecting rod 16 is L-shaped, and one section of the connecting rod 16 is vertically fixed to the slide column 17. In this embodiment, the sealing wedge 15 is pointed at the top. For example, the longitudinal section of the top of the sealing wedge 15 is an isosceles triangle with a rounded apex. This is to facilitate the piston block 2 and the piston plate to gradually squeeze the sealing wedge 15 and reduce movement resistance. In actual use, when the piston disc 3 is located at the right end of the injection chamber 4, the sliding pin 10 is engaged in the wedge groove 11 to fix the piston disc 3. When the push rod 5 moves to the left under the drive of a driving component, the piston block 2 and the piston disc 3 can separate and move to the left. During the movement to the left, the strip hole 6 and the output channel 7 are always kept in cross communication. That is, during this process, the output channel 7 remains open, and at the same time, the pull rope 12 is gradually tightened by the push rod 5. When the piston block 2 reaches the left end of the injection chamber 4, the pull rope 12 has been tightened, so that the sliding pin 10 is disengaged from the wedge groove 11. Under the attraction force, the piston disc 3 quickly moves to the left and sticks tightly to the piston block 2, reassembling into a piston component.

[0026] The reason for adopting the double-piston stacked structure of piston block 2 and piston plate in the above structure is mainly because when the piston component moves, firstly, it needs to achieve better dynamic sealing, which is easier to achieve with rubber; secondly, it needs to squeeze and rub against the sealing wedge 15 during movement; and thirdly, it needs to ensure that the sealing wedge 15 remains in a sealed state during the corresponding process. Therefore, in this embodiment, the piston plate not only controls the sealing wedge 15 to remain in a sealed position when the piston block 2 moves to the left (while also avoiding frictional contact with the sealing wedge 15), but also contacts the sealing wedge 15 first when the piston component retracts to the right, squeezing it down first, so that the subsequent piston block 2 can more easily slide over the sealing wedge 15 that is about to pop out, thereby improving the service life of the piston block 2.

[0027] More specifically, in this embodiment, the strip-shaped hole 6 is a rectangular hole, and when the piston block 2 moves to the right end, the rectangular hole does not intersect with the output channel 7, so as to ensure that when the main body 1 does not need to output the medicine and the piston component stays at the right end of the injection chamber 4 as the normal position, the output channel 7 is always closed, preventing the medicine tank from accidentally entering the injection chamber 4 due to the accidental increase of internal pressure and being discharged from the one-way valve 9.

[0028] like Figure 2 In this embodiment, the one-way valve 9 includes a valve plug 901 and a tension spring 902. The valve plug 901 is slidably installed in a stepped hole within the output pipe 8. Under normal conditions, the valve plug 901 is located in the smaller section of the stepped hole. One end of the tension spring 902 is connected to the valve plug 901, and the other end is connected to the inner wall of the output pipe 8. Under normal conditions, the tension spring 902 pulls the valve plug 901 to the position where the stepped hole is closed, forming a normally closed state so that the agent is discharged only when there is pressure. Furthermore, the one-way valve 9 also includes a slide rod 903. One end of the slide rod 903 is fixed to the bottom end of the valve plug 901, and the other end is slidably installed on a crossbar. The tension spring 902 is connected to the output pipe 8 through the crossbar to effectively realize the reset movement of the valve plug 901.

[0029] In the above implementation structure, such as Figure 1 and Figure 3 The piston disc 3 has rounded edges at both ends, a triangular groove 11, a rounded bottom surface for the sliding pin 10, and a spherical end 19 for the sliding column 17, which allows the sliding column 17 or sliding pin 10 to be better compressed and slid. The aforementioned pull rope 12 may include an elastic rope; when the elasticity is appropriate, the sliding pin 10 can be pulled out, releasing the piston disc 3.

[0030] As a specific concrete additive preparation process, such as the preparation of antifreeze concrete additives, the concrete additive preparation system described in the above embodiments can be used to add various agents. During addition, agent containers for various agents, such as those containing antifreeze components, early-strength components, air-entraining components, and water-reducing components, are prepared and placed horizontally below the main body 1 of each corresponding agent injector. These containers are then connected to the corresponding input pipes 13 connected to each agent container. Initially, each piston block 2 is positioned at the left end of the injection chamber 4, with the piston disc 3 tightly pressed against the piston block 2. Then, the right end of the push rod 5 is pulled to the right. Specifically, multiple hydraulic rods can be connected to the right end of the push rod 5. The specific stroke of the push rod 5 is set. During drive, the piston block 2 and piston disc 3 move horizontally to the right. After passing the sealing wedge 15, the sealing wedge 15 automatically pops out, opening the outlet end of the corresponding drainage hole 14 of each agent, ready for agent injection. As the piston block 2 and piston disc 3 continue to move to the right, the agent in the lower agent container is drawn into the injection chamber 4 through the drainage hole 14. When the piston block 2 moves to the right end, the lower side of the piston disc 3 presses down the sliding column 17, thereby causing the sealing wedge 15 to move down and block the drainage hole 14. At the same time, the sliding pin 10 is engaged in the wedge groove 11, and the piston disc 3 is temporarily fixed. When no more agent flows into the injection chamber 4, the push rod 5 is pushed to the left to overcome the magnetic attraction between the piston block 2 and the piston plate. For example, the piston block 2 and the piston plate each have embedded magnetic poles 20, which attract each other. After that, the piston block 2 separates from the piston plate and moves to the left alone, thereby injecting the agent drawn into the injection chamber 4 into the output pipe 8 through the output channel 7 and the strip hole 6. This pushes the valve disc in the one-way valve 9 to open, injecting the corresponding agent into the mixing tank. Then, the mixture is stirred to ensure the precise addition of the antifreeze component, early strength component, air-entraining component, and water-reducing component in a certain proportion.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A concrete additive preparation system comprising a mixing tank and a reagent injector, the reagent injector injecting a reagent into the mixing tank, characterised in that: The injection devices comprise several of different specifications, each used to quantitatively inject a single drug to ensure that the added drugs are in the desired design proportions; wherein, The drug injector includes a horizontally arranged main body (1) with an injection chamber (4) inside. A push rod (5) is slidably mounted on the main body (1) in the axial direction. A rubber piston block (2) is fixedly sleeved on the push rod (5) and a metal piston disc (3) is slidably sleeved on it. The piston disc (3) and the piston block (2) attract and adhere to each other as one. When the piston block (2) separates from the piston disc (3) and moves to the left, the injection chamber (4) outputs the drug. When the piston block (2) and piston disc (3) are in contact and move to the right, the injection chamber (4) inhales the drug.

2. The system for preparing a concrete additive according to claim 1, characterized in that: The piston block (2) has a push rod (5) on one side with a strip hole (6) along its axial direction, and the piston disc (3) has a wedge groove (11) on its top side surface. The left end of the main body (1) has an output channel (7), the outlet of the output channel (7) is connected to the output pipe (8) with a one-way valve (9) installed, and its inlet is connected to the injection chamber (4). The inner wall of the right end of the main body (1) is elastically and telescopically equipped with a sliding pin (10) that can engage with the wedge groove (11). The sliding pin (10) is connected to the left end of the push rod (5) through a pull rope (12). The bottom left end of the main body (1) is connected to an input pipe (13). A sealing wedge (15) with a pointed tip is vertically slidably installed in the drainage hole (14) connected to the outlet of the input pipe (13). The sealing wedge (15) can seal the outlet end of the drainage hole (14) in the injection chamber (4). The bottom end of the sealing wedge (15) is fixed to a vertically slidably installed sliding column (17) through a connecting rod (16). The sliding column (17) is connected to the bottom right end of the main body (1) through a cylindrical spring (18), which allows the sealing wedge (15) to open the outlet end of the drainage hole (14) under normal conditions. When the piston disc (3) is located at the right end of the injection chamber (4), the sliding pin (10) is engaged in the wedge groove (11) to fix the piston disc (3). When the push rod (5) moves to the left under the drive of a driving component, the piston block (2) and the piston disc (3) are separated and move to the left. During the movement to the left, the strip hole (6) and the output channel (7) are always connected crosswise. At the same time, the push rod (5) pulls the pull rope (12) to gradually straighten. When the piston block (2) reaches the left end of the injection chamber (4), the pull rope (12) has been straightened, causing the sliding pin (10) to disengage from the wedge groove (11). The piston disc (3) quickly moves to the left and is pressed against the piston block (2).

3. The system for producing a concrete additive according to claim 2, characterized in that: The strip hole (6) is a rectangular hole, and when the piston block (2) moves to the right end, the rectangular hole does not intersect with the output channel (7).

4. The system for producing a concrete additive according to claim 2, wherein: The one-way valve (9) includes a valve plug (901) and a tension spring (902). The valve plug (901) is slidably installed in the stepped hole in the output pipe (8). One end of the tension spring (902) is connected to the valve plug (901), and the other end is connected to the inner wall of the output pipe (8). Under normal conditions, the tension spring (902) pulls the valve plug (901) to the position where the stepped hole is closed.

5. The system for producing a concrete additive according to claim 4, characterized in that: The one-way valve (9) also includes a slide rod (903), one end of which is fixed to the bottom end of the valve plug (901), and the other end is slidably mounted on the crossbar. The tension spring (902) is connected to the output pipe (8) through the crossbar.

6. The system for producing a concrete additive according to claim 2, wherein: The longitudinal section of the top of the sealing wedge (15) is an isosceles triangle with a rounded apex.

7. The system for producing a concrete additive according to claim 6, characterized in that: The connecting rod (16) is L-shaped, and one section of the connecting rod (16) is perpendicularly fixed to the sliding column (17).

8. The system for producing a concrete additive according to claim 2, wherein: The piston disc (3) has rounded edges at both ends, the wedge groove (11) is a triangular groove, and the bottom surface of the sliding pin (10) is an arc surface.

9. The concrete additive preparation system according to claim 2, characterized in that: The pull rope (12) includes a section of elastic rope.

10. A process for the preparation of a concrete additive, characterized in that: Various agents are added using the concrete additive preparation system as described in any one of claims 2-9. During the addition process, (a) Place the various medicine containers horizontally below each corresponding main body (1) and connect them to the input pipe (13), and ensure that at the initial moment, the piston block (2) is located at the left end of the injection chamber (4), and the piston disc (3) is in close contact with the piston block (2); (b) Pull the right end of the push rod (5) to move to the right, and the piston block (2) and piston disc (3) move to the right as a whole. When it passes the sealing wedge (15), the sealing wedge (15) pops out automatically and opens the outlet end of the drainage hole (14). (c) The piston block (2) and piston disc (3) continue to move to the right. The medicine in the lower medicine container is sucked into the injection chamber (4) through the drainage hole (14). When the piston block (2) moves to the right end, the lower side of the piston disc (3) presses down the sliding column (17), thereby causing the sealing wedge (15) to move down and block the drainage hole (14). At the same time, the sliding pin (10) is inserted into the wedge groove (11), and the piston disc (3) is temporarily fixed. (d) When no more medicine flows into the injection chamber (4), push the push rod (5) to the left to overcome the magnetic attraction between the piston block (2) and the piston plate. The piston block (2) will move to the left on its own, thereby injecting the medicine drawn into the injection chamber (4) into the output pipe (8) through the output channel (7) and the strip hole (6). This will push the valve disc in the one-way valve (9) to open and inject the corresponding medicine into the mixing tank. Then, the mixture will be stirred.

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