A metering device for solid waste-based cementitious materials

Abstract

This utility model belongs to the field of solid waste-based cementitious material production technology, and discloses a solid waste-based cementitious material metering device. It includes a frame assembly for support and fixation, and a feeding assembly mounted on the frame assembly for continuously conveying different raw materials. Below the feeding assembly is a discharging assembly for weighing and quantitatively discharging the raw materials. The discharging assembly includes a second support, under which several weighing sensors are evenly distributed. Each weighing sensor has a storage mechanism below it for temporarily storing the raw materials for weighing and discharging. A second discharge pipe is located at the bottom of the storage mechanism, and a second through hole is located at the top. The first discharge pipe is slidably connected to the second through hole. This solid waste-based cementitious material metering device uses a linkage control between weighing sensors and a screw conveyor mechanism. By collecting the weight data of the storage tank in real time and feeding it back to the host computer, it achieves accurate metering of the raw materials, solving the problem of large errors in traditional volumetric metering.

Description

Technical Field

[0001] This utility model belongs to the field of solid waste-based cementitious material production technology, and in particular relates to a solid waste-based cementitious material metering device. Background Technology

[0002] Against the backdrop of sustainable development becoming a global consensus, solid waste-based cementitious materials are reshaping the development landscape of the traditional building materials industry with their unique environmental attributes and technological innovation value. This novel cementitious system, prepared primarily from industrial solid waste (such as fly ash, slag, and steel slag) through physicochemical activation, not only achieves resource utilization by "turning waste into treasure," but also demonstrates significant advantages in reducing carbon emissions and improving building durability. Its core technology lies in using mechanical activation and chemical stimulation processes to induce a volcanic ash reaction in the active components of solid waste, forming hydrated products with cementitious properties. Compared to ordinary silicate cement, the energy consumption for preparing solid waste-based cementitious materials can be reduced by 30%-50%, while CO2 emissions are reduced by more than 40%. In terms of mechanical properties, through optimized proportioning and additive technology, its compressive strength can reach over 42.5 MPa, with continued strength growth in later stages, making it particularly suitable for harsh environments such as underground engineering and marine construction. This material has been widely used in road base courses, precast components, and ecological slope protection.

[0003] Compared with Chinese Patent CN223060205U, a quantitative feeding device for solid powder processing is disclosed, including a fixed plate, a feeding tube fixedly and through the fixed plate, a quantitative tube that can rotate to directly below the feeding tube and is sealed and connected to the feeding tube below the feeding tube, a sealing plate that can seal the bottom of the feeding tube is connected to the top of the quantitative tube, a scraping and pushing mechanism located in the rotation surface of the quantitative tube and vertically sliding in contact with the inner wall of the quantitative tube is provided on one side of the feeding tube, and a sealing slide plate that can extend from the bottom and rotate to directly below the feeding tube is provided below the feeding tube, and the sealing slide plate can be sealed and slidingly engaged with the inner wall of the quantitative tube. The quantitative feeding accuracy is high, which solves the problem of the addition and metering being affected by the caking of the fixed powder.

[0004] However, the aforementioned patent uses a volumetric quantitative method for measurement, which is prone to large errors. Furthermore, the semi-open feeding method can easily cause powder to fly around and pollute the environment. Therefore, a new type of equipment needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide a metering device for solid waste-based cementitious materials to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A metering device for solid waste-based cementitious materials includes a frame assembly for support and fixation, and a feeding assembly mounted on the frame assembly for continuously conveying different raw materials. Below the feeding assembly is a discharging assembly for weighing and quantitatively discharging the materials. The frame assembly includes a mixing drum with a first sealing cover at its top. The first sealing cover has a plurality of first through holes evenly distributed on it, and a fixed column is located in the center of the first sealing cover. The feeding assembly includes a first support with a plurality of screw conveyors evenly distributed below it. One end of each screw conveyor has a first discharge pipe, and the top of the end of each screw conveyor away from the first discharge pipe has a feed hopper. The discharging assembly includes a second support with a plurality of weighing sensors evenly distributed below it. Each weighing sensor has a storage mechanism below it for temporarily storing raw materials for weighing and discharging. The storage mechanism has a second discharge pipe at its bottom and a second through hole at its top. The first discharge pipe is slidably connected to the second through hole, and the second discharge pipe is slidably connected to the first through hole.

[0008] Furthermore, the first bracket and the second bracket are distributed vertically along the fixed column and are riveted together with the fixed column respectively.

[0009] Furthermore, both the first support and the second support are triangular in shape.

[0010] Furthermore: the spiral conveying mechanism includes a conveying pipe, a spiral conveying blade is provided in the middle of the conveying pipe, and a servo motor is provided at one end of the spiral conveying blade.

[0011] Furthermore, the first discharge pipe and the feed hopper are respectively welded to the conveying pipe.

[0012] Furthermore: the storage mechanism includes a storage box, a second sealing cover is installed on the top of the storage box, a telescopic cylinder is installed in the middle of the second sealing cover, and a sealing plug is installed on the telescopic end of the telescopic cylinder.

[0013] Furthermore, both the upper and lower surfaces of the sealing plug are conical.

[0014] Compared with existing technologies, the beneficial effects are:

[0015] 1. The weighing sensor and the screw conveyor mechanism are linked for control. By collecting the weight data of the storage box in real time and feeding it back to the host computer, the accurate measurement of raw materials is achieved (automatic stop after the set value is reached), which solves the problem of large error in traditional volume measurement.

[0016] 2. The double sealing cover (first sealing cover + second sealing cover) combined with the sliding connection of the discharge pipe forms a closed conveying channel, which effectively prevents dust from overflowing and meets the environmental protection requirements for solid waste material treatment.

[0017] 3. The top of the storage tank is equipped with a liftable sealing plug to maintain a completely sealed state during the metering stage, so as to avoid external factors from affecting the weighing results; the conical double-sided design of the sealing plug, together with the telescopic cylinder, can seal the discharge port and ensure smooth opening and closing, so as to avoid material residue affecting the metering accuracy.

[0018] 4. The three sets of spiral conveying mechanisms and storage mechanisms are evenly distributed at 120° and fixed in layers by a three-pronged bracket, so as to realize the synchronous and independent conveying and metering of the three raw materials. The spatial layout is compact and does not interfere with each other. The first / second bracket and the fixed column are riveted to form a three-dimensional support structure, which simultaneously supports the three functional modules of feeding, weighing and unloading, and has strong overall stability.

[0019] 5. Through mechatronics design, it realizes the precise proportioning, closed conveying and automated control of multi-component solid waste-based cementitious materials, which is particularly suitable for solid waste resource utilization scenarios with high requirements for metering accuracy and environmental protection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a solid waste-based cementitious material metering device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the frame assembly of a solid waste-based cementitious material metering device according to the present invention;

[0022] Figure 3 This is a schematic diagram of the feeding component of a solid waste-based cementitious material metering device according to the present invention;

[0023] Figure 4 This is a front perspective view of the feeding component of the solid waste-based cementitious material metering device described in this utility model;

[0024] Figure 5 This is a schematic diagram of the feeding component of a solid waste-based cementitious material metering device according to the present invention;

[0025] Figure 6 This is a front view and perspective view of the feeding component of a solid waste-based cementitious material metering device according to the present invention.

[0026] In the attached drawings, the following are the reference numerals: 101, mixing drum; 102, first sealing cover; 103, fixed column; 104, first through hole; 201, first support; 202, conveying pipe; 203, first discharge pipe; 204, feed hopper; 205, spiral conveyor blade; 206, servo motor; 301, second support; 302, weighing sensor; 303, storage tank; 304, second discharge pipe; 305, second through hole; 306, telescopic cylinder; 307, second sealing cover; 308, sealing plug. Detailed Implementation

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

[0028] Please see Figures 1-6 A metering device for solid waste-based cementitious materials includes a frame assembly for support and fixation, and a feeding assembly installed on the frame assembly for continuously conveying different raw materials. Below the feeding assembly is a discharging assembly for weighing and quantitatively discharging the materials.

[0029] In this embodiment: the frame assembly includes a mixing drum 101, a first sealing cover 102 is installed on the top of the mixing drum 101, three first through holes 104 are evenly distributed on the first sealing cover 102, and a fixed column 103 is provided in the middle of the first sealing cover 102; the raw material in the storage tank 303 flows into the mixing drum 101 through the first through holes 104 on the first sealing cover 102 along the second discharge pipe 304 for subsequent mixing; the fixed column 103 is fixedly supported by the feeding assembly by the first bracket 201 and by the unloading assembly by the second bracket 301.

[0030] In this embodiment: the feeding assembly includes a first support 201, three spiral conveying mechanisms are evenly distributed below the first support 201, a first discharge pipe 203 is provided at one end of the bottom of the spiral conveying mechanism, and a feeding hopper 204 is provided at the top of the spiral conveying mechanism away from the first discharge pipe 203; the spiral conveying mechanism includes a conveying pipe 202, a spiral conveying blade 205 is provided in the middle of the conveying pipe 202, and a servo motor 206 is provided at one end of the spiral conveying blade 205; the first discharge pipe 203 and the feeding hopper 204 are respectively welded to the conveying pipe 202; different raw materials are poured into different feeding hoppers 204, the fixed column 103 supports the conveying pipe 202 through the first support 201, so that the conveying pipe 202 supports the servo motor 206 to drive the spiral conveying blade 205 to rotate, pushing the raw materials to move along the conveying pipe 202, and discharge them into the storage box 303 through the second through hole 305 on the second sealing cover 307 from the first discharge pipe 203;

[0031] In this embodiment: the feeding assembly includes a second support 301, under which three weighing sensors 302 are evenly distributed. Each weighing sensor 302 has a storage mechanism for temporarily storing raw materials for weighing and feeding. The storage mechanism has a second discharge pipe 304 at its bottom and a second through hole 305 at its top. The storage mechanism includes a storage box 303, with a second sealing cover 307 installed on the top of the storage box 303. A telescopic cylinder 306 is installed in the middle of the second sealing cover 307. The telescopic end is equipped with a sealing plug 308; the sealing plug 308 is conical on both the top and bottom; the second bracket 301 supports the weighing sensor 302, which is fixedly connected to the storage box 303 through the second sealing cover 307 to collect weight information and transmit it to the host computer. After reaching the set value, the servo motor 206 stops rotating, the second sealing cover 307 supports the telescopic cylinder 306 to retract and drive the sealing plug 308 to move upward, so that the raw material in the storage box 303 flows into the mixing drum 101 through the first through hole 104 on the first sealing cover 102 along the second discharge pipe 304.

[0032] The first discharge pipe 203 is slidably connected to the second through hole 305, and the second discharge pipe 304 is slidably connected to the first through hole 104, ensuring that the storage mechanism pulls the weighing sensor 302 under the action of weight to complete the weight information collection; the first bracket 201 and the second bracket 301 are distributed vertically along the fixed column 103 and are riveted to the fixed column 103 respectively; the first bracket 201 and the second bracket 301 are both trident-shaped; ensuring that the feeding component and the unloading component are evenly and stably arranged to avoid mutual interference.

[0033] Working principle: Different raw materials are poured into different feed hoppers 204. The fixed column 103 supports the conveying pipe 202 through the first bracket 201, so that the conveying pipe 202 supports the servo motor 206 to drive the spiral conveying blade 205 to rotate, pushing the raw materials to move along the conveying pipe 202. The raw materials are discharged from the first discharge pipe 203 through the second through hole 305 on the second sealing cover 307 into the storage tank 303. At the same time, the second bracket 301 supports the weighing sensor 302, which is fixedly connected to the storage tank 303 through the second sealing cover 307 to collect weight information and transmit it to the host computer. After the set value is reached, the servo motor 206 stops rotating, and the second sealing cover 307 supports the telescopic cylinder 306 to retract, which drives the sealing plug 308 to move upward, so that the raw materials in the storage tank 303 flow into the mixing drum 101 through the first through hole 104 on the first sealing cover 102 along the second discharge pipe 304 for subsequent mixing.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solid waste based cementitious material metering device comprising a frame assembly for supporting a fixture, characterized by: It also includes a feeding assembly installed on the frame assembly for continuously conveying different raw materials, and a feeding assembly for weighing and quantitatively discharging the materials is provided below the feeding assembly; The frame assembly includes a stirring drum (101), a first sealing cover (102) is installed on the top of the stirring drum (101), a plurality of first through holes (104) are evenly distributed on the first sealing cover (102), and a fixed column (103) is provided in the middle of the first sealing cover (102). The feeding assembly includes a first support (201), and several spiral conveying mechanisms are evenly distributed under the first support (201). A first discharge pipe (203) is provided at one end of the bottom of the spiral conveying mechanism, and a feeding hopper (204) is provided at the top of the end of the spiral conveying mechanism away from the first discharge pipe (203). The feeding assembly includes a second support (301), under which a plurality of weighing sensors (302) are evenly distributed. Each weighing sensor (302) is provided with a storage mechanism for temporarily storing raw materials for weighing and feeding. The bottom of the storage mechanism is provided with a second discharge pipe (304), and the top of the storage mechanism is provided with a second through hole (305). The first discharge pipe (203) is slidably connected to the second through hole (305), and the second discharge pipe (304) is slidably connected to the first through hole (104).

2. A solid waste based cementitious material metering device as claimed in claim 1, wherein: The first bracket (201) and the second bracket (301) are distributed vertically along the fixed column (103) and are riveted together with the fixed column (103) respectively.

3. A solid waste based cementitious material metering device as claimed in claim 2, wherein: Both the first bracket (201) and the second bracket (301) are trident-shaped.

4. The solid waste based cementitious material metering device of claim 1, wherein: The spiral conveying mechanism includes a conveying pipe (202), a spiral conveying blade (205) is provided in the middle of the conveying pipe (202), and a servo motor (206) is provided at one end of the spiral conveying blade (205).

5. A solid waste based geopolymer metering device as claimed in claim 4, wherein: The first discharge pipe (203) and the feed hopper (204) are respectively welded to the conveying pipe (202).

6. The solid waste based geopolymer metering device of claim 1, wherein: The storage mechanism includes a storage box (303), a second sealing cover (307) is installed on the top of the storage box (303), a telescopic cylinder (306) is installed in the middle of the second sealing cover (307), and a sealing plug (308) is installed at the telescopic end of the telescopic cylinder (306).

7. A solid waste based cementitious material metering device as claimed in claim 6, wherein: The sealing plug (308) is conical on both its top and bottom surfaces.

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