Putty production line and production process

Abstract

The application discloses a putty powder production line and a production process, and belongs to the technical field of putty powder production. The putty powder production line comprises a raw material storage tank, a spiral conveyor, a bucket elevator, a tower, a mixer, a finished product bin, a packaging machine and a control system, and further comprises a first metering bin and a second metering bin. One bucket elevator and a plurality of raw material storage tanks are arranged on one side of the tower, a first metering bin is arranged at the discharge end of each raw material storage tank, and the first metering bin and the feeding end of the bucket elevator are connected through a spiral conveyor. The tower is sequentially provided with the second metering bin, the mixer, the finished product bin and the packaging machine from top to bottom and is connected with each other, and the discharge end of the bucket elevator is connected with the second metering bin. The control system is used for monitoring the whole production process of raw material output of the raw material storage tank, finished product production and product packaging. The application can realize accurate batching and automatic production of putty powder, improve production efficiency and product quality, and improve market competitiveness.

Description

Technical Field

[0001] This invention relates to a putty powder production line and production process, belonging to the field of putty powder production technology. Background Technology

[0002] Putty powder is a basic material used in building decoration for leveling and repairing walls. It is mainly composed of talc powder, heavy calcium carbonate powder, cementing materials (such as cement / gypsum), and functional additives. Its core functions include filling cracks, enhancing adhesion, and providing a smooth base layer for the finishing layer. Current putty powder production methods mainly include tower-type production lines, stepped production lines, and mobile production lines. Among them, tower-type production lines have a small footprint, high degree of automation, and high annual output, making them suitable for large-scale production. Tower-type production lines have a vertical layout, with raw material tanks, mixers, packaging machines, and other equipment installed in layers and connected by hoists or pneumatic conveying systems.

[0003] Currently, a commonly used type of putty powder tower production line is as follows: Figure 4 As shown, it mainly consists of (from left to right in the diagram) a raw material storage elevator, raw material storage tanks, a weighing and conveying system, a raw material batching elevator, a relay silo, a mixer, a leveling silo, a packaging machine, and a control cabinet (usually also including a dust collector). During production, raw materials are transported to the raw material storage elevator via material carts or manually. The elevator then loads each raw material into different storage tanks. The raw materials in the storage tanks are weighed and conveyed by the weighing and conveying system to the raw material batching elevator, which then transports them to the relay silo at the top of the tower for batching. The material in the relay silo then enters the mixer for thorough mixing. Finally, the thoroughly mixed material is discharged into the leveling silo and packaged by the packaging machine for output. The process of feeding, lifting, and mixing is repeated to achieve assembly line operation. Simultaneously, a dust collector removes dust generated during production, ensuring a clean production environment; the control cabinet controls the operation of each mechanism.

[0004] With the upgrading of functional requirements (such as the need for precise control of the proportion of core components such as heavy calcium carbonate, gypsum, and cement to achieve performance in special putty powders like water-resistant and crack-resistant types; and the increasing market share of high-end putty (such as environmentally friendly and functional putty), which has higher formulation complexity and precision requirements), tightening environmental policies, and strengthening of quality control and testing (such as national standards setting quantitative requirements for putty powder bonding strength and water resistance), putty powder production has shifted from extensive proportioning to precision and standardization, and the precision requirements will continue to increase in the future. However, in the putty powder production process of the aforementioned tower-type production line, the raw materials are weighed after leaving the raw material storage tank, then transported to the raw material batching elevator, and then transported to the relay warehouse. Due to the long distance between these two transport stages, the raw materials may adhere to the conveying structure or be excessively absorbed by the dust removal system during these two transport stages, affecting the accuracy of the batching and thus the quality of the finished product. In addition, the finished product may contain some large particles larger than the required particle size of putty powder, which not only reduces the quality of the finished product but also leads to insufficient and uneven mixing, which is not conducive to improving the product's market competitiveness. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] The technical problem to be solved by this invention is that the accuracy of batching in a commonly used putty powder tower-type production line needs to be improved.

[0007] (II) Technical Solution

[0008] To address the aforementioned technical problems, this invention provides a putty powder production line, comprising a raw material storage tank, a screw conveyor, a bucket elevator, a tower, a mixer, a finished product silo, a packaging machine, and a control system. It also includes a first metering silo and a second metering silo. A bucket elevator and multiple raw material storage tanks are installed on one side of the tower. The first metering silo is installed at the discharge end of each raw material storage tank, and the first metering silo and the feed end of the bucket elevator are connected via a screw conveyor. The tower, from top to bottom, sequentially comprises the second metering silo, the mixer, the finished product silo, and the packaging machine, all interconnected. The discharge end of the bucket elevator is connected to the second metering silo. The control system controls the entire production process of the putty powder, i.e., it monitors and controls the entire production process from the output of raw materials from the raw material storage tanks to the production and packaging of the finished product.

[0009] During production, all first metering bins sequentially and quantitatively output raw materials to the second metering bins. Only one first metering bin outputs raw materials to the second metering bin at a time. The second metering bin receives each batch of raw materials from different first metering bins and checks whether the quantities meet the product proportion requirements. When a first metering bin (generally the one currently delivering raw materials) finishes its quantitative output and is received by the second metering bin, if the second metering bin detects that the quantity of raw material meets the proportion requirements, the control system controls the delivery of the next raw material (if other types of raw materials in the putty powder formula have not yet been delivered to the second metering bin) or controls the material in the second metering bin to enter the mixer (if all raw materials in the putty powder formula have been delivered proportionally). If the second metering bin detects that the quantity of raw material does not meet the proportion requirements, the control system automatically calculates the difference and controls the first metering bin to output the material with the difference again, until the second metering bin receives all the raw materials and detects that the quantity meets the proportion requirements. Then, it controls the delivery of the next raw material or controls the material in the second metering bin to enter the mixer.

[0010] Furthermore, the putty powder production line also includes a screening hopper and a first grinding mill. The screening hopper and the first grinding mill are installed at the connection channel between the mixer and the finished product silo. The screening hopper screens the material coming out of the mixer into coarse and fine materials. The first grinding mill is equipped with a first feed pipe and a first discharge pipe. The coarse material outlet of the screening hopper is connected to the first feed pipe, and the first discharge pipe is connected to the conveying path of the fine material coming out of the screening hopper. This allows the coarse material to be ground into fine material conveying path through the first discharge pipe after being ground by the first grinding mill. The coarse material then falls into the finished product silo along with the fine material, achieving a certain degree of re-mixing and improving the uniformity of the finished product.

[0011] Furthermore, the putty powder production line also includes a vision detector and a second grinder. A vision detector is installed on the first feed pipe, and a dust removal structure is typically installed at the inspection window of the vision detector to reduce detection interference. Two conveying pipelines are provided between the discharge end of the bucket elevator and the second metering bin, each equipped with a switch valve. The second grinder is installed on one of the conveying pipelines. During normal production, only the conveying pipeline without the second grinder is used. When the vision detector detects an abnormal increase and sustained increase in granular material in the first feed pipe, such as a surge in the flow rate of large granules occupying more than two-thirds of the cross-section of the feed pipe or a certain density, feedback is sent to the control system. The control system issues an alarm and activates the conveying pipeline with the second grinder while simultaneously shutting down the other conveying pipeline. The second grinder refines the raw materials entering the second metering bin, allowing the mixer to more thoroughly homogenize the materials, reducing the impact of large granules on the mixing effect, and also reducing large granules in the finished product.

[0012] Furthermore, two second metering bins are installed on the tower, and the discharge end of the bucket elevator is connected to one of the second metering bins simultaneously. At any given time, the bucket elevator only supplies material to one of the second metering bins. Once the required amount of material has been supplied, it stops supplying that bin and opens the connection between that bin and the mixer. Simultaneously, the bucket elevator supplies putty powder raw materials to the other second metering bin, repeating this cycle to achieve continuous putty powder production and improve production efficiency.

[0013] Furthermore, the bucket elevator has a main feed pipe at its discharge end. This main feed pipe is inclined and has two branch feed pipes mounted on it. Switch valves are installed at the connections between the branch feed pipes and the main feed pipe. These two branch feed pipes form two conveying pipelines between the discharge end of the bucket elevator and the second metering bins. The two branch feed pipes can operate independently by opening and closing different switch valves. The branch feed pipes are Y-shaped (comprising three branch pipes), each connected to the main feed pipe and one of the two second metering bins. Three-way valves are installed at the bifurcation points, allowing selective connection between one of the second metering bins and the discharge end of the bucket elevator. One of the feed pipes is equipped with a second grinding mill.

[0014] Furthermore, the putty powder production line also includes an additive silo and a micro-metering conveyor. Multiple additive silos are set on the tower outside the second metering silo. Generally, multiple additive silos are set for each second metering silo. The additive silos are connected to the second metering silo through the micro-metering conveyor to realize short-distance direct supply of additives, reduce material loss, and control batching errors.

[0015] Furthermore, the output ends of the raw material storage tank, the first metering chamber, the second metering chamber, and the mixer are respectively equipped with opening and closing valves that are electrically connected to the control system. The start and stop control of each functional mechanism is realized through the control system and each opening and closing valve.

[0016] Furthermore, the finished product warehouse is equipped with multiple discharge hoppers, and a packaging machine is installed outside each discharge hopper to improve packaging efficiency. The first discharge pipe is inclined and spans over all the discharge hoppers in the finished product warehouse. Multiple discharge holes are arranged in an array along the axial direction of the first discharge pipe to disperse the discharge, avoid large particles being ground and discharged to a fixed position, which would affect the uniformity of the material and ensure the quality of the finished product.

[0017] Furthermore, the raw material storage tank includes a support frame and a tank body mounted on the support frame. The first metering chamber is located inside the support frame, and the tank body and the first metering chamber form an upper and lower structure, which reduces the space occupied by the first metering chamber in the production space and improves the environmental adaptability of the production line.

[0018] On the other hand, the present invention also provides a putty powder production process, which uses the putty powder production line described above and includes the following steps:

[0019] S1. Input and set the required proportions of each raw material for the putty powder to be produced in the control system;

[0020] S2. Open the passage between the raw material storage tank and the first metering chamber, input the putty powder raw material stored in different raw material storage tanks into the corresponding first metering chamber, and then close the passage between the raw material storage tank and the first metering chamber. The material weight data of each first metering chamber is transmitted to the control system.

[0021] S3. All first metering chambers sequentially and quantitatively output raw materials to the second metering chamber. The second metering chamber receives and tests the different amounts of raw materials from different first metering chambers to see if they meet the product ratio requirements.

[0022] S4. When one of the first metering bins has finished discharging raw materials and the second metering bin has finished receiving them, if the second metering bin detects that the quantity of the raw materials meets the mixing ratio requirements, the control system controls the conveying of the next raw material until all different raw materials enter the second metering bin to complete the mixing process; if the second metering bin detects that the quantity of the raw material does not meet the mixing ratio requirements, the control system automatically calculates the difference and controls the first metering bin to output the raw material with the difference again until the second metering bin has finished receiving them and detects that the quantity of the raw material meets the mixing ratio requirements, and then the control system controls the conveying of the next raw material until all different raw materials enter the second metering bin to complete the mixing process.

[0023] S5. After the raw materials in the second metering chamber are batched, the control system opens the connection between the second metering chamber and the mixer, and inputs the batched materials in the second metering chamber into the mixer for thorough mixing.

[0024] S6. After mixing is complete, open the output outlet of the mixer so that the mixed material can enter the finished product silo for temporary storage.

[0025] S7. The materials in the finished goods warehouse are bagged by the packaging machine and then sent out.

[0026] (III) Beneficial Effects

[0027] The above-described technical solution of the present invention has the following advantages:

[0028] (1) The present invention uses the first metering chamber and the second metering chamber in combination with the control system to make the proportion of each raw material of putty powder entering the mixer more accurate, which greatly improves the quality of putty powder products.

[0029] (2) The present invention effectively reduces the impact of large-particle-size materials on the mixing effect of the mixer and the quality of the finished putty powder by using a screening hopper, a first grinding mill, a vision detector and a second grinding mill.

[0030] (3) By combining (1) and (2), the quality of putty powder products can be further improved.

[0031] This invention has a simple structure and is easy to use. Furthermore, the design of dual second metering chambers enables continuous production, resulting in high production efficiency, reduced production costs, and improved market competitiveness.

[0032] In addition to the technical problems solved by the present invention, the technical features of the technical solutions constituted by the present invention, and the advantages brought about by the technical features of these technical solutions as described above, other technical features of the present invention and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the isometric projection of the present invention.

[0035] Figure 2 This is a partially cutaway schematic diagram showing the assembly structure of the components at the location of the first grinding machine in this invention.

[0036] Figure 3 for Figure 1 Enlarged view of part A.

[0037] Figure 4 This is a schematic diagram of a tower-type putty powder production line in the existing technology.

[0038] In the diagram: 1. Raw material storage tank; 2. Screw conveyor; 3. Bucket elevator; 4. Tower; 5. Mixer; 6. Finished product silo; 7. Packaging machine; 8. Control system; 9. First metering silo; 10. Second metering silo; 11. Screening hopper; 12. First grinding mill; 13. First feed pipe; 14. First discharge pipe; 15. Vision detector; 16. Second grinding mill; 17. Main feed pipe; 18. Branch feed pipe; 19. Switch valve; 20. Three-way valve; 21. Additive silo; 22. Micro-metering conveyor; 23. Discharge hopper; 24. Support frame; 25. Tank body. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] Example 1: As Figure 1 As shown, a putty powder production line includes a raw material storage tank 1, a screw conveyor 2, a bucket elevator 3, a tower 4, a mixer 5, a finished product silo 6, a packaging machine 7, and a control system 8. It also includes a first metering silo 9 and a second metering silo 10. The tower 4 typically adopts a multi-story tower structure and is fixed to the installation surface. One bucket elevator 3 and three raw material storage tanks 1 are installed on one side of the tower 4. The discharge end of each raw material storage tank 1 is respectively equipped with the first metering silo 9. Each raw material storage tank 1 includes a support 24 and a tank body 25 mounted on the support 24. The first metering silo 9 is located within the support 24 directly below the tank body 25. The first metering silo 9 and the feed end of the bucket elevator 3 are connected via the screw conveyor 2. The tower 4, from top to bottom, sequentially includes the second metering silo 10, the mixer 5, the finished product silo 6, and the packaging machine 7, and these components are interconnected. The discharge end of the bucket elevator 3 is connected to the second metering silo 10. The valves at the discharge end of the raw material storage tank 1, the screw conveyor 2, the bucket elevator 3, the mixer 5, the valves at the discharge end of the finished product silo 6, and the packaging machine 7 (as well as other components or mechanisms involved in the entire putty powder production line that need to be controlled or can be controlled by the control system 8, such as the dust removal system mentioned below) are all electrically connected to and controlled by the control system 8. The control system 8 is used to monitor and control the entire production process from the output of raw materials from the raw material storage tank 1 to the production and packaging of finished products. It should be noted that the control system 8 can achieve the required control using existing technology, such as a PLC control system 8. Therefore, the control system 8 will not be described in detail here.

[0042] During production, all first metering chambers 9 sequentially output raw materials in quantities that meet the requirements of putty powder formulation to the second metering chamber 10. The second metering chamber 10 receives each raw material from different first metering chambers 9 and checks whether the quantities of different raw materials meet the product formulation requirements. When one of the first metering chambers 9 has finished outputting raw materials and the second metering chamber 10 has finished receiving them, there are two scenarios: (1) If the second metering chamber 10 detects that the quantity of the raw material meets the formulation requirements, the control system 8 controls the conveying of the next raw material or controls the material in the second metering chamber 10 to enter the mixer 5. (2) If the second metering chamber 10 detects that the quantity of the raw material does not meet the formulation requirements, the control system 8 automatically calculates the difference (which is the amount of raw material lost during the conveying process) and controls the first metering chamber 9 to output the raw material with the difference again until the second metering chamber 10 has finished receiving them and detected that the quantity of the raw material meets the formulation requirements. Then, the control system 8 controls the conveying of the next raw material or controls the material in the second metering chamber 10 to enter the mixer 5.

[0043] It should be noted that although it is possible to set up only the second metering bin 10 and then use the screw conveyor 2 and bucket elevator 3 to directly transport the raw materials from the raw material storage tank 1 to the second metering bin 10 for metering and batching, this would require a separate conveyor line for each different raw material. When the putty powder has many raw materials, such as 3, 4, 5 or more, it would greatly increase the equipment cost and the space occupied in the production area, especially the bucket elevator 3, and would also increase the operation and maintenance costs. In the solution of this embodiment, only one bucket elevator 3 is needed, which can make reasonable use of resources and save space. Although different raw materials share the same bucket elevator 3, if the previous raw material adheres to the bucket elevator 3, the next raw material conveying may carry away the adhered material, thus affecting the accuracy of batching. However, the probability is low (because if the previous raw material adheres, the adhesion is generally firm and not easily carried away in large quantities by the next raw material conveying process), and the impact is negligible.

[0044] Putty powder production lines usually also need to be equipped with dust removal systems. In this embodiment, the putty powder production line can be equipped with conventional dust removal systems in the existing technology.

[0045] Example 2: This example is a further optimization of the putty powder production line based on Example 1. For example... Figure 2As shown, the putty powder production line described in this embodiment also includes a screening hopper 11 (configured as a funnel-shaped structure, with the neck opening serving as the coarse material outlet and the remaining funnel body covered with screening holes to screen out fine materials. In this embodiment, the mixer 5 is a twin-shaft zero-gravity mixer 5, whose discharge port is generally located at the four corners of the bottom and is opened and closed by a cylinder driving a rotating shaft with baffles, so the material from the mixer 5 is discharged from the four corners and can be better screened by the screening hopper 11) and a first grinding mill 12. The screening hopper 11 and the first grinding mill 12 are arranged at the connection channel between the mixer 5 and the finished product silo 6. Specifically, the screening hopper 11 is arranged inside the connection channel between the mixer 5 and the finished product silo 6, while the first grinding mill 12 is arranged outside the connection channel between the mixer 5 and the finished product silo 6. The first grinding mill 12 is inclinedly equipped with a first feed pipe 13 and a first discharge pipe 14. The coarse material outlet of the screening hopper 11 is connected to the first feed pipe 13, and the first discharge pipe 14 is connected to the fine material conveying path from the screening hopper 11. More specifically, the finished product bin 6 is equipped with multiple discharge hoppers 23, and a packaging machine 7 is correspondingly installed outside each discharge hopper 23. The first discharge pipe 14 is inclined and spans over all the discharge hoppers 23 of the finished product bin 6, and multiple discharge holes are arranged in an array along the axial direction of the first discharge pipe 14. With this structural arrangement, the material ground by the first grinding mill 12 is dispersed and enters different discharge hoppers 23 of the finished product bin 6 along with the fine material from the screening hopper 11, minimizing the impact of large particles on the finished product. Furthermore, a vibrator can be installed on the screening hopper 11 to prevent insufficient material screening, and vibrators can also be installed at the output ends of the raw material storage tank 1, metering bin, and finished product bin 6 to prevent material bridging from affecting discharge.

[0046] The putty powder production line described in this embodiment also includes a vision detector 15 and a second grinding mill 16. The vision detector 15 is installed on the first feed pipe 13. Two conveying pipelines are provided between the discharge end of the bucket elevator 3 and the second metering bin 10. Switch valves 19 are installed on the conveying pipelines, and the second grinding mill 16 is installed on one of the conveying pipelines. Figure 3As shown, the second grinding mill 16 is installed on the conveying pipeline between the switch valve 19 and the second metering chamber 10. More precisely, the second grinding mill 16 is connected to the conveying pipeline between the switch valve 19 and the second metering chamber 10, but it is fixed on the bucket elevator 3 or the tower 4 (in this embodiment, it is installed on the former). During normal production, only the conveying pipeline without the second grinding mill 16 is used. When the vision detector 15 detects an abnormal surge in large particles in the first feed pipe 13, such as when the flow rate occupies more than two-thirds of the cross-section of the first feed pipe 13 or the density reaches a certain level, it feeds back to the control system 8. The control system 8 issues an alarm message (such as issuing an alarm through an alarm light installed on the control system 8, or popping up an alarm prompt window on the display interface of the control system 8) and activates the conveying pipeline with the second grinding mill 16, while closing the other conveying pipeline.

[0047] It should be noted that the aforementioned visual detector 15 can be a visual inspection analyzer from existing technology. To ensure the accuracy of its detection results, a dust removal structure is typically installed in front of the detection window to reduce dust interference, or a self-cleaning lens (such as ultrasonic vibration) is used. The aforementioned visual detector 15 can also be a powder flow detector, etc.

[0048] Example 3: This example is a further optimization of the putty powder production line based on Example 2. In this example, two second metering bins 10 are set on the tower 4, and the discharge end of the bucket elevator 3 is connected to one of the second metering bins 10 at the same time. One preferred structural arrangement is: the discharge end of the bucket elevator 3 is provided with a main material pipe 17, the main material pipe 17 is inclined and has two branch material pipes 18 on it, and a switch valve 19 is set at the connection between the branch material pipes 18 and the main material pipe 17. The switch valve 19 controls the opening and closing of the branch material pipes 18. The branch material pipes 18 are inverted Y-shaped pipes (i.e., three-way pipes, the upper branch pipe of the branch material pipe 18 is connected to the main material pipe 17 and is provided with the switch valve 19, and the lower left and right branch pipes of the branch material pipe 18 are respectively connected to the corresponding second metering bins 10), and a three-way valve 20 is set at the fork. The second grinding machine 16 is set on one of the branch material pipes 18. Specifically, a second feed pipe and a second discharge pipe are set on the second grinding machine 16, and then the second feed pipe and the second discharge pipe are respectively connected to the branch pipe 18. In this embodiment, the branch pipe on the branch pipe 18 is directly cut off, and then the second feed pipe is connected to the main feed pipe 17 and a switch valve 19 is set, and the second discharge pipe is connected to the three-way valve 20.

[0049] Example 4: This example is a further optimization of the putty powder production line based on Example 3. The putty powder production line in this example also includes an additive silo 21 and a micro-metering conveyor 22 (a micro-metering conveyor 22 using existing technology, such as a spiral metering conveyor), with the additive silo 21 mounted on a tower 4 outside the second metering silo 10. The additive silo 21 is connected to the second metering silo 10 via the micro-metering conveyor 22 to achieve quantitative feeding. The micro-metering conveyor 22 is electrically connected to and controlled by the control system 8. The output ends of the raw material storage tank 1, the first metering silo 9, the second metering silo 10, and the mixer 5 are respectively equipped with opening and closing valves electrically connected to the control system 8 (existing technology can be used). The opening and closing valves on the raw material storage tank 1, the first metering silo 9, and the second metering silo 10 are generally ordinary electric valves, while the opening and closing valve of the mixer 5 is generally a cylinder-driven valve.

[0050] Example 5: This example provides a putty powder production process, which uses the putty powder production line described in the above examples, and includes the following steps:

[0051] S1. Input and set the required proportions of each raw material for the putty powder to be produced in the control system 8;

[0052] S2. Various raw materials are loaded into different raw material storage tanks 1 by material carts and elevators for later use. During production, the passage between each raw material storage tank 1 and its lower first metering chamber 9 is opened, and the putty powder raw materials stored in different raw material storage tanks 1 are input into the corresponding first metering chamber 9. When the material in each first metering chamber 9 reaches a certain amount, such as T1 (at least greater than the amount required to complete one batching), the passage between the raw material storage tank 1 and the first metering chamber 9 is closed by the control system 8, and the material weight data of each first metering chamber 9 is transmitted to the control system 8.

[0053] S3. All first metering bins 9 sequentially output quantitatively (if T2 is required, when the control system 8 detects that the material in the first metering bin 9 has decreased by T2, it closes the opening and closing valve at its lower end, but the screw conveyor 2 and bucket elevator 3 below it need to continue to convey the material falling into it out) raw materials to one of the second metering bins 10. The second metering bin 10 receives and detects whether the different raw material quantities from different first metering bins 9 meet the product ratio requirements.

[0054] S4. When one of the first metering bins 9 has finished quantitatively discharging raw materials and the second metering bin 10 has finished receiving them, if the second metering bin 10 detects that the amount of raw materials meets the mixing ratio requirements, the control system 8 controls the conveying of the next raw material until all different raw materials enter the second metering bin 10 to complete the mixing; if the second metering bin 10 detects that the amount of raw materials does not meet the mixing ratio requirements, the control system 8 automatically calculates the difference and controls the corresponding first metering bin 9 to output the raw materials with the difference again until the second metering bin 10 has finished receiving them and detected that the amount of raw materials meets the mixing ratio requirements, and then the control system 8 controls the conveying of the next raw material until all different raw materials enter the second metering bin 10 to complete the mixing; during the process of the control system 8 controlling one of the first metering bins 9 to quantitatively discharge raw materials to the second metering bin 10, the other first metering bins 9 can be replenished to T1 through the corresponding raw material storage tank 1.

[0055] S5. Various additives are added through different additive bins 21 and micro-metering conveyor 22. Then the control system 8 opens the connection between the second metering bin 10 that has been batched and the mixer 5, and inputs the prepared material in the second metering bin 10 into the mixer 5 for thorough mixing. At the same time, it starts batching for another empty second metering bin 10.

[0056] S6. After mixing is complete, open the output outlet of mixer 5 to allow the mixed material to enter the finished product silo 6 for temporary storage. Then, input the prepared material from another second metering silo 10 into mixer 5 for mixing (at this time, the initial second metering silo 10 is being batched again). During the process of inputting the mixed material from mixer 5 into the finished product silo 6, the large particles in the silo are screened out and refined by screening hopper 11 and first grinding mill 12 and then remixed. When vision detector 15 detects an abnormal surge in large particles in the first feed pipe 13 and maintains this condition for a long time (a low probability event), the output pipe with second grinding mill 16 is activated to supply raw materials to the second metering silo 10. At the same time, the other raw material output pipe at the discharge end of bucket elevator 3 is closed, and an alarm message is issued to remind the staff to find the cause of the abnormal surge in large particles and eliminate it (such as a humid environment in a certain part of the production line, causing water to seep in and affect the process). After elimination, switch to the raw material output pipe at the discharge end of bucket elevator 3 without second grinding mill 16 and clear the alarm prompt of control system 8.

[0057] S7. The materials in the finished product warehouse 6 are bagged by the packaging machine 7 and then sent out.

[0058] In this application, in order to reduce the interference of the external environment on the first metering chamber 9, a baffle can be set on the bracket 24 to enclose the first metering chamber 9, so that it is in a closed environment.

[0059] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A putty powder production line, comprising a raw material storage tank (1), a screw conveyor (2), a bucket elevator (3), a tower (4), a mixer (5), a finished product warehouse (6), a packaging machine (7), and a control system (8), characterized in that: It also includes a first metering bin (9) and a second metering bin (10); a bucket elevator (3) and multiple raw material storage tanks (1) are set on one side of the tower (4), and the first metering bin (9) is set at the discharge end of each raw material storage tank (1). The first metering bin (9) and the feed end of the bucket elevator (3) are connected by a screw conveyor (2); the second metering bin (10), a mixer (5), a finished product bin (6) and a packaging machine (7) are set on the tower (4) from top to bottom and are connected to each other. The discharge end of the bucket elevator (3) is connected to the second metering bin. (10) Connection; Two second metering bins (10) are set on the tower (4). The discharge end of the bucket elevator (3) is connected to one of the second metering bins (10) at the same time. At the same time, the bucket elevator only delivers material to one of the second metering bins. When the delivered material reaches the requirement, it stops delivering to it and opens the connection between the second metering bin and the mixer. At the same time, the bucket elevator delivers putty powder raw materials to the other second metering bin. The cycle is repeated to realize the continuous production of putty powder. The control system (8) is used to control the entire production process of putty powder. During production, all first metering bins (9) sequentially output raw materials to the second metering bins (10). The second metering bins (10) receive and detect whether the different amounts of raw materials from different first metering bins (9) meet the product ratio requirements. When one of the first metering bins (9) has finished outputting raw materials and the second metering bin (10) has finished receiving them, if the second metering bin (10) detects that the amount of raw materials meets the ratio requirements, the control system (8) controls the delivery of the next raw material or controls the material in the second metering bin (10) to enter the mixer (5). If the second metering bin (10) detects that the amount of raw materials does not meet the ratio requirements, the control system (8) automatically calculates the difference and controls the first metering bins (9) to output the raw materials with the difference again until the second metering bins (10) have finished receiving them and detected that the amount of raw materials meets the ratio requirements. Then, the control system (8) controls the delivery of the next raw material or controls the material in the second metering bin (10) to enter the mixer (5).

2. The putty powder production line according to claim 1, characterized in that: It also includes a screening hopper (11) and a first grinding mill (12). The screening hopper (11) and the first grinding mill (12) are provided at the connection channel between the mixer (5) and the finished product silo (6). The first grinding mill (12) is provided with a first feed pipe (13) and a first discharge pipe (14). The coarse material outlet in the middle of the screening hopper (11) is connected to the first feed pipe (13), and the first discharge pipe (14) is connected to the conveying path of the fine material coming out of the screening hopper (11). It also includes a vision detector (15) and a second grinder (16). The vision detector (15) is installed on the first feed pipe (13). Two conveying pipelines are set between the discharge end of the bucket elevator (3) and the second metering bin (10). A switch valve (19) is installed on the conveying pipeline. The second grinder (16) is installed on one of the conveying pipelines. During normal production, only the conveying pipeline without the second grinder (16) is used. When the vision detector (15) detects an abnormal increase in large particles in the first feed pipe (13), it feeds back to the control system (8). The control system (8) issues an alarm message and activates the conveying pipeline with the second grinder (16), while closing the other conveying pipeline.

3. The putty powder production line according to claim 2, characterized in that: The bucket elevator (3) is provided with a main material pipe (17) at the discharge end. The main material pipe (17) is inclined and has two branch pipes (18) on it. A switch valve (19) is provided at the connection between the branch pipe (18) and the main material pipe (17). The branch pipe (18) is a Y-shaped pipe. Its three branch pipes are connected to the main material pipe (17) and the two second metering bins (10) respectively. A three-way valve (20) is provided at the bifurcation point. The second grinding machine (16) is provided on one of the branch pipes (18).

4. The putty powder production line according to claim 3, characterized in that: It also includes an additive bin (21) and a micro-metering conveyor (22). The additive bin (21) is installed on a tower (4) outside the second metering bin (10). The additive bin (21) is connected to the second metering bin (10) through the micro-metering conveyor (22).

5. The putty powder production line according to claim 4, characterized in that: The output ends of the raw material storage tank (1), the first metering chamber (9), the second metering chamber (10) and the mixer (5) are respectively equipped with opening and closing valves that are electrically connected to the control system (8).

6. The putty powder production line according to claim 5, characterized in that: The finished product warehouse (6) is provided with multiple discharge hoppers (23), and a packaging machine (7) is provided outside each discharge hopper (23). The first discharge pipe (14) is inclined and spans above all the discharge hoppers (23) of the finished product warehouse (6), and multiple discharge holes are arranged in an array along the axial direction of the first discharge pipe (14).

7. The putty powder production line according to claim 1, characterized in that: The raw material storage tank (1) includes a support (24) and a tank body (25) disposed on the support (24), and the first metering chamber (9) is disposed inside the support (24).

8. A putty powder production process, characterized in that: The production of putty powder using any one of the putty powder production lines described in claims 1-7 includes the following steps: S1. Input and set the required proportions of each raw material for the putty powder to be produced in the control system (8); S2. Open the passage between the raw material storage tank (1) and the first metering chamber (9), input the putty powder raw material stored in different raw material storage tanks (1) into the corresponding first metering chamber (9), and then close the passage between the raw material storage tank (1) and the first metering chamber (9). The material weight data of each first metering chamber (9) is transmitted to the control system (8). S3. All first metering bins (9) sequentially output raw materials to the second metering bins (10). The second metering bins (10) receive and test the different amounts of raw materials from different first metering bins (9) to see if they meet the product ratio requirements. S4. When one of the first metering bins (9) has finished quantitatively outputting raw materials and the second metering bin (10) has finished receiving them, if the second metering bin (10) detects that the amount of raw materials meets the mixing ratio requirements, the control system (8) controls the delivery of the next raw material until all different raw materials enter the second metering bin (10) to complete the mixing; if the second metering bin (10) detects that the amount of raw materials does not meet the mixing ratio requirements, the control system (8) automatically calculates the difference and controls the first metering bin (9) to output the raw materials with the difference again until the second metering bin (10) has finished receiving them and detects that the amount of raw materials meets the mixing ratio requirements, then the control system (8) controls the delivery of the next raw material until all different raw materials enter the second metering bin (10) to complete the mixing; S5. The control system (8) opens the connection between the second metering chamber (10) and the mixer (5) and inputs the prepared material in the second metering chamber (10) into the mixer (5) for thorough mixing. S6. After mixing is complete, open the output outlet of the mixer (5) so that the mixed material enters the finished product silo (6) for temporary storage. S7. The materials in the finished product warehouse (6) are bagged by the packaging machine (7) and then sent out.

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