Post-adding device for low-carbon Portland cement expanding agent

Abstract

The utility model relates to the technical field of expanding agent adding, and discloses a low-carbon Portland cement expanding agent post-adding device which comprises a storage assembly, a metering assembly and a mixing module, and the storage assembly comprises a storage bin. According to the post-adding device for the low-carbon Portland cement expanding agent, the expanding agent in the storage bin can be conveyed into the metering box to be weighed through the discharging pipe and the first electromagnetic valve, the expanding agent can fall on the weighing device to be weighed after entering the metering box, and the metering precision of the expanding agent is guaranteed; then the measured expanding agent can be blown into the feeding pipe by starting the small variable-frequency air compressor, the expanding agent can be conveyed into the mixing box through the feeding pipe, the adding work of the expanding agent is completed, design is conducted according to the characteristics of the low-carbon Portland cement expanding agent, the production requirement of high-performance cement is met, and the production cost is reduced. The low-carbon Portland cement expanding agent adding device realizes accurate adding of the low-carbon Portland cement expanding agent, improves the performance of cement, and is simple in structure, low in cost and convenient to operate.

Description

Technical Field

[0001] This application relates to the field of expansive agent addition technology, specifically to a device for post-addition of expansive agent to low-carbon silicate cement. Background Technology

[0002] With the increasing demand for high-performance cement in the construction industry, low-carbon silicate cement has gradually gained attention due to its environmental friendliness and excellent performance.

[0003] Expansive agents, as important additives in cement production, can effectively improve the expansion properties of cement and enhance the crack resistance and durability of concrete.

[0004] Currently, the addition of expansive agents in cement production usually adopts the premixing method or the simultaneous addition method. However, these methods have problems such as uneven distribution of expansive agents and low addition precision, which affect the final performance of cement. In recent years, post-addition technology has gradually become a research hotspot, aiming to improve the performance of cement by precisely controlling the addition time and amount of expansive agents. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a device for adding low-carbon silicate cement expansion agent, which enables precise addition of low-carbon silicate cement expansion agent, improves cement performance, and solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, this application provides the following technical solution: a device for adding low-carbon silicate cement expansion agent, comprising a storage component, a metering component, and a mixing module. The storage component includes a storage silo, the metering component includes a metering box, a weighing device is installed at the bottom of the metering box, a discharge pipe is connected to the top of the metering box, the top of the discharge pipe is connected to the bottom of the storage silo, a first solenoid valve is installed on a section of the discharge pipe, a small variable frequency air compressor is fixedly connected to one side of the metering box, an air outlet pipe is connected to the output end of the small variable frequency air compressor, a filter screen is fixedly connected to the output end of the air outlet pipe, the output end of the air outlet pipe is embedded in the inner wall of the weighing device, a second solenoid valve is installed on a section of the air outlet pipe, a feeding pipe is installed on one side of the metering box, a third solenoid valve is installed on a section of the feeding pipe, a vibration motor is installed at the bottom of the metering box, and the mixing module includes a mixing box, with the output end of the feeding pipe embedded in the top of the mixing box.

[0007] The above scheme utilizes a discharge pipe and a first solenoid valve to transport the expanding agent from the storage silo to a metering tank for weighing. After entering the metering tank, the expanding agent falls onto a weighing device for accurate weighing, ensuring the metering accuracy. Then, a small variable frequency air compressor is activated to blow the metered expanding agent into a feeding pipe, which then transports it to a mixing tank, completing the addition of the expanding agent. Designed specifically for the characteristics of low-carbon silicate cement expanding agents, this system meets the production requirements of high-performance cement, achieves precise addition of low-carbon silicate cement expanding agents, improves cement performance, and features a simple structure, low cost, and convenient operation, making it highly practical.

[0008] Furthermore, a guide plate is fixedly connected to the inner wall of the metering box, and the guide plate is located below the discharge pipe.

[0009] With the above scheme, the guide plate is installed at an angle on the inner wall of the metering box, which can guide the expanding agent to flow into the feeding pipe, facilitating the feeding of the expanding agent after metering.

[0010] Furthermore, a controller is fixedly connected to the outer surface of the metering box, and all electrical components inside the metering assembly are electrically connected to the controller.

[0011] With the above solution, the controller is integrated into the outer wall of the metering box. The PLC program controls the operation of the internal electrical components of the metering assembly in real time, realizing full automation of weighing, conveying, and unblocking, and reducing human intervention errors.

[0012] Furthermore, a feeding hopper is installed at the top of the storage silo, a measuring range bar is embedded on the front of the storage silo, and the storage silo is connected to the metering box through a discharge pipe.

[0013] The above solution allows for quick replenishment of the expanding agent in the feeding hopper, while the transparent and visible design of the measuring strip supports real-time monitoring of the remaining material in the storage bin, preventing production interruptions. The discharge pipe directly connects the storage bin and the metering box, shortening the conveying path and reducing energy consumption.

[0014] Furthermore, four first support columns are fixedly connected to the bottom surface of the storage bin, and a positioning piece is fixedly connected to the bottom end of each first support column.

[0015] With the above solution, the first support column is fixed to the ground or equipment base with bolts through the positioning plate at the bottom, which enhances the vertical stability of the storage silo and prevents the equipment from tilting due to the shift of the material's center of gravity or vibration.

[0016] Furthermore, the metering box is connected to the mixing box via a feeding pipe, and a stirring assembly is installed inside the mixing box.

[0017] Through the above scheme, the feeding pipe directly delivers the metered expansion agent to the mixing tank, and the mixing component ensures that the expansion agent and cement clinker are quickly and evenly mixed during dynamic conveying.

[0018] Furthermore, a feeding plate is installed at the top of the mixing box, a discharge pipe is installed at the bottom of the mixing box, and a fourth solenoid valve is installed on the pipe section of the discharge pipe.

[0019] With the above scheme, the feeding plate can easily add cement and other clinker into the mixing box, and the discharge pipe controls the discharge rhythm of the cement mixture through the fourth solenoid valve to match the production line rhythm and avoid blockage or overflow.

[0020] Furthermore, four second support columns are fixedly connected to the bottom surface of the mixing box, and a positioning piece is fixedly connected to the bottom end of each second support column.

[0021] With the above solution, the second support column is fixed to the foundation by positioning plates, which improves the overall rigidity of the equipment and adapts to the needs of high-load continuous production.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This low-carbon silicate cement expanding agent post-addition device uses a discharge pipe and a first solenoid valve to transport the expanding agent from the storage silo to a metering tank for weighing. After entering the metering tank, the expanding agent falls onto a weighing device for accurate weighing. Then, a small variable frequency air compressor is started to blow the metered expanding agent into a feeding pipe, which then transports it to the mixing tank, completing the expansion agent addition process. Designed specifically for the characteristics of low-carbon silicate cement expanding agents, this device meets the production requirements of high-performance cement, achieves precise addition of low-carbon silicate cement expanding agents, improves cement performance, and features a simple structure, low cost, and convenient operation, making it highly practical. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall front view of the structure of this application;

[0025] Figure 2 This is a schematic diagram of the overall bottom view of the structure of this application;

[0026] Figure 3 This is a schematic diagram of the overall planar structure of the present application.

[0027] Figure 4 This is a first partial sectional view of the structure of this application;

[0028] Figure 5 This is a schematic diagram of the second partial cross-sectional structure of the present application.

[0029] In the picture:

[0030] 1. Material storage assembly; 101. Material storage bin; 102. Feeding hopper; 103. Measuring bar; 104. First support column; 2. Metering assembly; 201. Metering box; 202. Weighing device; 203. Discharge pipe; 204. First solenoid valve; 205. Small variable frequency air compressor; 206. Air outlet pipe; 207. Filter screen; 208. Second solenoid valve; 209. Feeding pipe; 210. Third solenoid valve; 211. Vibration motor; 212. Guide plate; 213. Controller; 3. Mixing module; 301. Mixing box; 302. Stirring assembly; 303. Feeding plate; 304. Discharge pipe; 305. Fourth solenoid valve; 306. Second support column. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 3 The low-carbon silicate cement expanding agent post-addition device in this embodiment includes a storage component 1, a metering component 2, and a mixing module 3. The storage component 1 includes a storage silo 101, and the metering component 2 includes a metering box 201. A weighing device 202 is installed at the bottom of the metering box 201. The weighing device 202 can weigh the expanding agent falling into the metering box 201, thus achieving precise addition of the low-carbon silicate cement expanding agent. The top of the metering box 201 is connected to a discharge pipe 203. The top of the discharge pipe 203 is connected to the bottom of the storage silo 101. A feeding hopper 102 is installed at the top of the storage silo 101, and a range bar 103 is embedded on the front of the storage silo 101. The storage silo 101 is connected to the metering box 201 via the discharge pipe 203. The replenishment hopper 102 facilitates the rapid replenishment of the expanding agent. The transparent and visible design of the measuring bar 103 supports real-time monitoring of the remaining material in the storage silo 101, avoiding production interruptions. The discharge pipe 203 directly connects the storage silo 101 and the metering box 201, shortening the conveying path and reducing energy consumption. Four first support columns 104 are fixedly connected to the bottom surface of the storage silo 101. Each first support column 104 has a positioning plate fixedly connected to its bottom end. The first support column 104 is fixed to the ground or equipment base with bolts through the positioning plate at the bottom, enhancing the vertical stability of the storage silo 101 and preventing the equipment from tilting due to the shift of the material's center of gravity or vibration.

[0033] Please see Figure 3 , Figure 4 and Figure 5 A first solenoid valve 204 is installed on the pipe section of the discharge pipe 203. A small variable frequency air compressor 205 is fixedly connected to one side of the metering box 201. The output end of the small variable frequency air compressor 205 is connected to an air outlet pipe 206. A filter screen 207 is fixedly connected to the output end of the air outlet pipe 206. The output end of the air outlet pipe 206 is embedded in the inner wall of the weighing device 202. A second solenoid valve 208 is installed on the pipe section of the air outlet pipe 206. A feeding pipe 209 is installed on one side of the metering box 201. When the small variable frequency air compressor 205 starts, it can compress external air and deliver it to the metering box 201 through the air outlet pipe 206, so that the expanding agent inside the metering box 201 can be delivered through the feeding pipe 209. A third solenoid valve 210 is installed on the pipe section of the feeding pipe 209. The bottom of the metering box 201... The metering unit is equipped with a vibration motor 211, which can periodically vibrate to prevent the expansion agent from accumulating and also facilitate the conveying of the expansion agent. A guide plate 212 is fixedly connected to the inner wall of the metering box 201. The guide plate 212 is located below the discharge pipe 203. The guide plate 212 is installed at an angle on the inner wall of the metering box 201, which can guide the expansion agent to flow into the feeding pipe 209, facilitating the feeding of the expansion agent after metering. A controller 213 is fixedly connected to the outer surface of the metering box 201. All electrical components inside the metering component 2 are electrically connected to the controller 213. The controller 213 is integrated into the outer wall of the metering box 201. The PLC program controls the operation of the electrical components inside the metering component 2 in real time, realizing the full automation of weighing, conveying, and unblocking processes, and reducing human intervention errors.

[0034] Please see Figure 1 , Figure 2 and Figure 3 The mixing module 3 includes a mixing tank 301. The output end of the feeding pipe 209 is embedded in the top of the mixing tank 301. The metering tank 201 is connected to the mixing tank 301 through the feeding pipe 209. A mixing assembly 302 is installed inside the mixing tank 301. The feeding pipe 209 directly delivers the metered expanding agent into the mixing tank 301. The mixing assembly 302 ensures that the expanding agent and cement clinker are quickly and evenly mixed during dynamic conveying. A feeding plate 303 is installed at the top of the mixing tank 301, and a discharge pipe 304 is installed at the bottom of the mixing tank 301 for discharging materials. A fourth solenoid valve 305 is installed on the pipe section of pipe 304. The feeding plate 303 can easily add cement and other clinker into the mixing box 301. The discharge pipe 304 controls the discharge rhythm of the cement mixture through the fourth solenoid valve 305 to match the production line rhythm and avoid blockage or overflow. Four second support columns 306 are fixedly connected to the bottom surface of the mixing box 301. Each second support column 306 has a positioning plate fixedly connected to its bottom end. The second support column 306 is fixed to the foundation through the positioning plate, which improves the overall rigidity of the equipment and adapts to the needs of high-load continuous production.

[0035] In this embodiment, the low-carbon silicate cement expanding agent post-addition device, through the discharge pipe 203 and the first solenoid valve 204, can transport the expanding agent inside the storage silo 101 to the metering box 201 for weighing. After entering the metering box 201, the expanding agent falls onto the weighing device 202 for weighing, ensuring the metering accuracy of the expanding agent. Then, by starting the small variable frequency air compressor 205, the metered expanding agent can be blown into the feeding pipe 209. The expanding agent will be transported to the mixing box 301 through the feeding pipe 209, completing the addition of the expanding agent. Designed specifically for the characteristics of low-carbon silicate cement expanding agent, it meets the production requirements of high-performance cement, realizes the precise addition of low-carbon silicate cement expanding agent, improves the performance of cement, and the device has a simple structure, low cost, and convenient operation, making it more practical.

[0036] The working principle of the above embodiment is as follows: When the device is running, the low-carbon silicate cement expanding agent in the storage silo 101 flows into the metering box 201 under gravity through the discharge pipe 203. The first solenoid valve 204 controls the flow rate to match the preset value. The expanding agent entering the metering box 201 falls onto the weighing device 202 for accurate measurement. After weighing, the controller 213 starts the small variable frequency air compressor 205. The compressed air forms a clean airflow through the air outlet pipe 206 and the filter screen 207. The air pressure is adjusted by the second solenoid valve 208, and the metered expanding agent is blown into the feeding pipe 209 in a fluidized form. The third solenoid valve 210 controls the conveying rhythm, and at the same time, the guide plate 212 guides the material towards the feeding pipe 209. The 09 direction is concentrated, and the vibration motor 211 vibrates periodically to prevent material accumulation. The expansion agent is conveyed to the top of the mixing box 301 through the feeding pipe 209. Then, cement and other clinker can be put into the mixing box 301 through the feeding plate 303. Then, the mixing component 302 is started to make the expansion agent and cement clinker mix quickly in dynamic conveying. The mixed cement is discharged through the discharge pipe 304 by the fourth solenoid valve 305 according to the production line rhythm to avoid blockage. During the process, the replenishment hopper 102 monitors the remaining amount in the storage bin 101 in real time through the range bar 103 and replenishes the material in time. The controller 213 integrates PLC program to automatically control the entire process of weighing, conveying, mixing and discharge, realizing high-efficiency production with low manual intervention.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for adding low-carbon silicate cement expansion agent, comprising a storage component (1), a metering component (2), and a mixing module (3), characterized in that: The storage assembly (1) includes a storage bin (101), and the metering assembly (2) includes a metering box (201). A weighing device (202) is installed at the bottom of the metering box (201). A discharge pipe (203) is connected to the top of the metering box (201). The top of the discharge pipe (203) is connected to the bottom of the storage bin (101). A first solenoid valve (204) is installed on the pipe section of the discharge pipe (203). A small variable frequency air compressor (205) is fixedly connected to one side of the metering box (201). An air outlet pipe (206) is connected to the output end of the small variable frequency air compressor (205). A filter screen (207) is fixedly connected to the output end of the air outlet pipe (206). The output end of the air outlet pipe (206) is embedded in the inner wall of the weighing device (202). A second solenoid valve (208) is installed on the pipe section of the air outlet pipe (206). A feeding pipe (209) is installed on one side of the metering box (201). A third solenoid valve (210) is installed on the pipe section of the feeding pipe (209). A vibration motor (211) is installed at the bottom of the metering box (201). The mixing module (3) includes a mixing box (301). The output end of the feeding pipe (209) is embedded in the top of the mixing box (301).

2. The device for adding low-carbon silicate cement expansion agent according to claim 1, characterized in that: The inner wall of the metering box (201) is fixedly connected to a guide plate (212), which is located below the discharge pipe (203).

3. The device for adding low-carbon silicate cement expansion agent according to claim 1, characterized in that: The outer surface of the metering box (201) is fixedly connected to the controller (213), and the electrical components inside the metering component (2) are all electrically connected to the controller (213).

4. The device for adding low-carbon silicate cement expansion agent according to claim 1, characterized in that: The top of the storage bin (101) is equipped with a feeding hopper (102), and the front of the storage bin (101) is inlaid with a range bar (103). The storage bin (101) is connected to the metering box (201) through the discharge pipe (203).

5. The device for adding low-carbon silicate cement expansion agent according to claim 1, characterized in that: The bottom surface of the storage bin (101) is fixedly connected to four first support columns (104), and each first support column (104) is fixedly connected to a positioning piece at its bottom end.

6. The device for adding low-carbon silicate cement expansion agent according to claim 1, characterized in that: The metering box (201) is connected to the mixing box (301) through the feeding pipe (209), and the mixing box (301) is equipped with a stirring assembly (302).

7. The device for adding low-carbon silicate cement expansion agent according to claim 1, characterized in that: The mixing box (301) is equipped with a feeding plate (303) at the top and a discharge pipe (304) at the bottom. A fourth solenoid valve (305) is installed on the pipe section of the discharge pipe (304).

8. The device for adding low-carbon silicate cement expansion agent according to claim 1, characterized in that: The bottom surface of the mixing box (301) is fixedly connected with four second support columns (306), and each second support column (306) is fixedly connected with a positioning piece at its bottom end.

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