Premixing device for refractory material production

Abstract

The utility model is applicable to the technical field of refractory material production, and provides a premixing device for refractory material production, which comprises a platform frame, and a premixing tank for premixing and processing a refractory material is fixedly mounted on the platform frame; the turning and stirring rod is rotationally mounted in the premixing tank and is used for turning and stirring the refractory material; the filter box is arranged on the platform frame and is used for filtering air impurities; the air outlet pipe is fixedly communicated with the top of the filter box, and the air outlet end of the air outlet pipe is fixedly communicated with a mounting box; the rotating shaft is rotationally mounted on the mounting box, and the bottom end of the rotating shaft extends into the mounting box. According to the premixing device for refractory material production provided by the scheme, the problems that the premixing is insufficient and the mixing uniformity is difficult to guarantee when an existing premixing machine treats dust materials are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of refractory material production, and in particular relates to a premixing device used for refractory material production. Background Art

[0002] In the refined production process of refractory materials, mixing of clay is a crucial process step. Since refractory materials have extremely high requirements for the uniformity and stability of their components, some raw materials need to be pre-treated by a pre-mixer before formal mixing to ensure the uniformity of mixing and the quality of the product. This kind of pre-mixed clay is usually called "pre-mixed powder" or "mixed powder" in the industry.

[0003] At present, as one of the core equipment of refractory production lines, the performance and efficiency of premixers directly affect the final quality of products. In the prior art, the high-efficiency low-speed premixer described in Chinese patent CN210525540U has improved the stirring effect and mixing efficiency to a certain extent through its unique structural design, such as conical premixing barrel, anchor frame stirring paddle and spiral blades; however, in practical applications, especially for the premixing of dusty materials, mechanical stirring still has certain limitations, such as insufficient premixing and difficulty in ensuring mixing uniformity. In view of the above problems, it is necessary to optimize and improve the existing premixers to meet the higher requirements for raw material premixing in refractory production. Utility Model Content

[0004] The utility model provides a premixing device for refractory material production, aiming to solve the problems of insufficient premixing and difficulty in ensuring mixing uniformity when the existing premixer processes dust materials.

[0005] The utility model is implemented as follows: a premixing device for refractory material production comprises: a platform frame, on which a premixing tank for premixing and processing refractory materials is fixedly installed; a stirring rod rotatably installed in the premixing tank for stirring the refractory materials; a filter box arranged on the platform frame for filtering air impurities; an air outlet pipe fixedly connected to the top of the filter box, and an installation box is fixedly connected to the air outlet end of the air outlet pipe; a rotating shaft rotatably installed on the installation box, and the bottom end of the rotating shaft extends into the installation box; a fan blade fixedly installed on the bottom end of the rotating shaft and rotatably pumping air; an air supply pipe fixedly connected to the top of the installation box for supplying air to the premixing tank, and the air outlet end of the air supply pipe is fixedly connected to the premixing tank; a driving mechanism arranged on the premixing tank and the platform frame, and the driving mechanism is used to drive the rotating shaft and the stirring rod to rotate.

[0006] Preferably, the driving mechanism includes: a mounting shell assembled on the platform frame; a motor fixed in the mounting shell; pulleys fixedly mounted on the output shaft of the motor and the top end of the stirring rod respectively; a timing belt sleeved on the corresponding pulley for transmission; a bearing seat fixed on the platform frame; a transmission shaft rotatably mounted on the bearing seat; couplings fixedly mounted on both ends of the transmission shaft respectively, and one end of the corresponding coupling is fixedly connected to the output shaft of the motor and the rotating shaft respectively.

[0007] Preferably, a plurality of pull-out and detachable filter plates are provided in the filter box, and the filter plates are used to filter air impurities. One side of the filter box is fixedly connected to an air intake pipe, and a mesh cover is provided on the air intake end of the air intake pipe.

[0008] Preferably, a screw conveyor for conveying premixed refractory materials is provided below the premixing tank, a material guide pipe is fixedly installed at the feed end of the screw conveyor, a material valve is provided at the feed end of the material guide pipe, and the feed end of the material valve is fixedly connected to the discharge port of the premixing tank.

[0009] Preferably, a discharge pipe is fixedly mounted on the discharge end of the screw conveyor, and a belt conveyor for receiving the conveyed material is arranged below the discharge pipe.

[0010] Preferably, a check valve is provided on the air supply pipe, a feed channel is provided on the top of the premixing tank, a baffle is hinged on the top of the feed channel, an air vent is provided on the baffle, and a dust-blocking net is provided in the air vent.

[0011] Preferably, a box door that can be opened and closed is provided on one side of the filter box, a hinge and a handle lock are provided on the box door, and the hinge is fixedly connected to the filter box.

[0012] Compared with the related art, the premixing device for refractory material production provided by the utility model has the following beneficial effects:

[0013] The combination of the stirring rod inside the premixing tank and the air flow introduced by the air supply pipe effectively solves the problems of insufficient mixing and difficulty in ensuring uniformity of dust materials during the premixing process: the removable filter plate in the filter box and the mesh cover on the air inlet pipe ensure the cleanliness of the air entering the premixing tank, reduce the adverse effects on equipment operation, and extend the service life of the equipment. The combined design of the screw conveyor and the belt conveyor provides continuous and stable material transportation, improves production efficiency and material transportation accuracy; the check valve on the air supply pipe and the baffle design of the feed channel on the top of the premixing tank ensure the correct directional flow of gas, prevent safety problems or equipment damage caused by gas backflow, and maintain a clean environment in the tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of a premixing device for refractory material production provided by the utility model;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in FIG.

[0017] Figure 4 This is a schematic diagram of the structure of the premixing tank in the utility model.

[0018] Figure numerals: 1. platform frame; 2. premixing tank; 3. stirring rod; 4. filter box; 5. outlet pipe; 6. mounting box; 7. rotating shaft; 8. fan blade; 9. air supply pipe; 10. mounting shell; 11. motor; 12. pulley; 13. timing belt; 14. bearing seat; 15. transmission shaft; 16. coupling; 17. filter plate; 18. air inlet pipe; 19. screw conveyor; 20. material guide pipe; 21. material valve; 22. material discharge pipe; 23. belt conveyor; 24. check valve; 25. baffle. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The present utility model provides a premixing device for refractory material production, such as Figure 1-4As shown, the premixing device for refractory material production comprises: a platform frame 1, on which a premixing tank 2 for premixing refractory materials is fixedly installed; a stirring rod 3 rotatably installed in the premixing tank 2 for stirring refractory materials; a filter box 4 arranged on the platform frame 1 for filtering air impurities; an air outlet pipe 5 fixedly connected to the top of the filter box 4, and an installation box 6 is fixedly connected to the air outlet end of the air outlet pipe 5; a rotating shaft 7 rotatably installed on the installation box 6, and the bottom end of the rotating shaft 7 extends into the installation box 6; a fan blade 8 fixedly installed on the bottom end of the rotating shaft 7 for rotatably pumping air; an air supply pipe 9 fixedly connected to the top of the installation box 6 for supplying air to the premixing tank 2, and the air outlet end of the air supply pipe 9 is fixedly connected to the premixing tank 2; a driving mechanism arranged on the premixing tank 2 and the platform frame 1, and the driving mechanism is used to drive the rotating shaft 7 and the stirring rod 3 to rotate.

[0022] It should be noted that the premixer plays a vital role in the refractory production line. It is responsible for mixing various raw materials, ensuring the uniformity and consistency of the raw materials, and providing high-quality raw materials for subsequent molding, sintering and other process steps. The performance and efficiency of the premixer directly affect the final quality of the product, such as key indicators such as refractoriness, mechanical strength, and thermal shock resistance; Advantages of the prior art The high-efficiency low-speed premixer described in Chinese patent CN210525540U effectively improves the mixing effect and mixing efficiency through its unique structural design, such as conical premixing barrel, anchor frame stirring paddle and spiral blades. The conical premixing barrel helps to evenly distribute the raw materials, and the anchor frame stirring paddle and spiral blades use different stirring methods and angles to make the raw materials produce strong convection and shearing effects in the premixing barrel, thereby achieving a good mixing effect; Although the prior art has improved the performance and efficiency of the premixer to a certain extent, in practical applications, especially for the premixing of dust materials, the mechanical stirring method still has certain limitations. Specifically, it manifests itself in the following aspects: Insufficient premixing: Due to the fine particles and strong fluidity of dust materials, it may be difficult to fully mix them by mechanical stirring. Especially in the corners and dead corners of the premixing barrel, raw materials are easy to accumulate, resulting in uneven mixing; Difficult to ensure mixing uniformity: The mixing uniformity of dust materials is crucial to the final quality of the product. However, due to the limitations of mechanical stirring, mixing uniformity is difficult to be fully guaranteed, so a premixing device for refractory production is needed to solve the above problems;

[0023] In this embodiment, the design aims to overcome the shortcomings of traditional mechanical stirring when processing dusty materials and improve the uniformity and efficiency of raw material mixing. The following is an explanation of the functions of each part of the device and its beneficial effects: Platform frame 1: As the basic support structure of the entire device, it ensures the stability of the premixing tank 2 and other components; Premixing tank 2: It is the main container for mixing raw materials. Its internal space design helps to evenly distribute the raw materials and reduce the problem of raw material accumulation in corners and dead ends; Stirring rod 3: By rotating in the premixing tank 2, the refractory materials are stirred, so that the raw materials are more fully mixed in the tank; Filter box 4: Located on the platform frame 1, its function is to filter impurities in the air entering the premixing tank 2, ensure the air quality during the mixing process, and avoid contaminating the raw materials; Air outlet pipe 5: Transports the filtered clean air from the filter box 4 to the installation box 6 to prepare for the subsequent gas supply; Installation box 6: Serves as the installation base for the rotating shaft 7 and the fan blades 8, and also serves to connect the air supply pipe 9; Rotating shaft 7 and fan blades 8: By rotating in the installation box 6, the fan blades 8 generate air flow, and this flowing air is then sent into the premixing tank 2 through the air supply pipe 9. Such a design helps to form airflow in the premixing tank 2, further promoting the mixing of raw materials, especially in the processing of dusty materials, the introduction of airflow can improve the uniformity of mixing; air supply pipe 9: transports the air pumped by the fan blades 8 to the premixing tank 2 to provide power for the mixing of raw materials; driving mechanism: used to drive the rotation of the rotating shaft 7 and the stirring rod 3 to ensure the continuity and efficiency of the entire premixing process; in summary, the premixing device effectively solves the problems of insufficient mixing and difficulty in ensuring uniformity of dusty materials during the premixing process by combining mechanical stirring and airflow-assisted mixing. The advantage of this design is that it improves the quality and efficiency of raw material premixing in refractory production, thereby having a positive impact on key indicators such as the refractoriness, mechanical strength, and thermal shock resistance of the final product.

[0024] In a further preferred embodiment of the utility model, the driving mechanism includes: a mounting shell 10 assembled on the platform frame 1; a motor 11 fixed in the mounting shell 10; a pulley 12 fixedly mounted on the output shaft of the motor 11 and the top of the stirring rod 3 respectively; a timing belt 13 for transmission mounted on the corresponding pulley 12; a bearing seat 14 fixed on the platform frame 1; a transmission shaft 15 rotatably mounted on the bearing seat 14; and couplings 16 fixedly mounted on both ends of the transmission shaft 15, and one end of the corresponding coupling 16 is fixedly connected to the output shaft of the motor 11 and the rotating shaft 7 respectively.

[0025] In this embodiment, the design of the driving mechanism is more sophisticated and efficient, and its components and beneficial effects are as follows: mounting shell 10: assembled on the platform frame 1, providing a stable installation environment for the motor 11, protecting the motor from external interference and damage; motor 11: fixed in the mounting shell 10, serving as the power source of the driving mechanism, its output shaft is connected to the stirring rod 3 through a pulley 12 and a timing belt 13, and is connected to the transmission shaft 15 and the rotating shaft 7 through a coupling 16, so as to realize the simultaneous driving of the stirring rod 3 and the rotating shaft 7; pulley 12: fixedly mounted on the output shaft of the motor 11 and the top of the stirring rod 3, respectively, and transmits the power of the motor to the stirring rod 3 through the transmission of the timing belt 13, causing it to rotate, thereby driving the refractory material to be effectively stirred in the premixing tank 2; timing belt 13: sleeved on the corresponding pulley 12, Used to transmit power, its advantages are smooth transmission, low noise, no need for lubrication, and the ability to maintain an accurate transmission ratio, ensuring that the rotational speed of the stirring rod 3 matches the output rotational speed of the motor 11; bearing seat 14: fixed on the platform frame 1, providing support for the transmission shaft 15, ensuring its stable rotation and reducing friction resistance; transmission shaft 15: rotatably installed on the bearing seat 14, connected to the output shaft and rotating shaft 7 of the motor 11 through the coupling 16, playing the role of transmitting power, so that the power of the motor 11 can be transmitted to the stirring rod 3 and the rotating shaft 7 at the same time, realizing synchronous operation of the two; coupling 16: fixedly installed at both ends of the transmission shaft 15, one end is connected to the output shaft of the motor 11, and the other end is connected to the rotating shaft 7. Its function is to transmit torque between two different shafts, while allowing certain axial and angular deviations, thereby improving the flexibility and reliability of the system.

[0026] In a further preferred embodiment of the utility model, a plurality of removable filter plates 17 are arranged in the filter box 4, and the filter plates 17 are used to filter air impurities. An air intake pipe 18 is fixedly connected to one side of the filter box 4, and a mesh cover is arranged on the air intake end of the air intake pipe 18.

[0027] In this embodiment, the design of the filter box 4 reflects the importance of air quality control. Its components and beneficial effects are as follows: filter plate 17: It is arranged in the filter box 4 and is a removable design. Such a design facilitates regular cleaning or replacement of filter materials, ensuring the continued effectiveness of the filtering effect. The main function of the filter plate 17 is to filter impurities in the air, such as dust, particulate matter, etc., to ensure that the air entering the system is clean, reduce the adverse effects on the operation of the equipment, and extend the service life of the equipment; air intake pipe 18: It is fixedly connected to one side of the filter box 4, and a mesh cover is arranged on its air intake end. The function of the mesh cover is to further block larger debris from entering the air intake pipe 18 to prevent blockage and damage to the filter system. The design of the air intake pipe 18 ensures that the air can flow smoothly into the filter box 4. After being filtered by the filter plate 17, the clean air can enter the next link.

[0028] In a further preferred embodiment of the utility model, a screw conveyor 19 for conveying premixed refractory materials is provided below the premixing tank 2, a material guide pipe 20 is fixedly installed at the feed end of the screw conveyor 19, a material valve 21 is provided at the feed end of the material guide pipe 20, and the feed end of the material valve 21 is fixedly connected to the discharge port of the premixing tank 2.

[0029] In this embodiment, the combined design of the premixing tank 2 and the screw conveyor 19 optimizes the conveying process of the refractory material. Its components and beneficial effects are as follows: the screw conveyor 19 is arranged below the premixing tank 2, and is used to guide the premixed refractory material from the premixing tank 2 to the next process or storage location. The screw conveyor 19 has the characteristics of simple structure, convenient operation, good sealing, etc., and can continuously and stably convey materials, thereby improving production efficiency; the guide pipe 20 is fixedly installed at the feed end of the screw conveyor 19, and its function is to guide the refractory material in the premixing tank 2 to the screw conveyor 19, so as to ensure that the material can smoothly enter the conveying system. The design of the guide pipe 20 takes into account the smoothness of the material flow, and reduces the accumulation and blockage of the material during the conveying process; the material valve 21 is arranged at the feed end of the guide pipe 20, and its feed end is fixedly connected to the discharge port of the premixing tank 2. The function of the material valve 21 is to control the outflow speed and flow rate of the refractory material, and can be adjusted according to actual production needs to ensure the continuity and stability of production. The provision of the material valve 21 also facilitates stopping the material delivery when necessary to carry out maintenance and overhaul of the equipment.

[0030] In a further preferred embodiment of the present invention, a discharge pipe 22 is fixedly mounted on the discharge end of the screw conveyor 19 , and a belt conveyor 23 for receiving the conveyed material is arranged below the discharge pipe 22 .

[0031] In this embodiment, the connection design of the screw conveyor 19 and the belt conveyor 23 further optimizes the continuous conveying process of the refractory material. Its components and beneficial effects are as follows: the discharge pipe 22 is fixedly installed at the discharge end of the screw conveyor 19. Its main function is to guide the refractory material conveyed by the screw conveyor 19 to the next conveying equipment, namely the belt conveyor 23. The design of the discharge pipe 22 ensures that the material can be smoothly and orderly transferred from the screw conveyor 19 to the belt conveyor 23, avoiding the splashing and scattering of the material, and improving the accuracy and efficiency of material transportation; the belt conveyor 23 is arranged below the discharge pipe 22, and is used to receive and continue to convey the refractory material from the screw conveyor 19. The belt conveyor 23 is an ideal choice for long-distance material transportation due to its advantages such as strong conveying capacity, long conveying distance and wide adaptability. It can smoothly convey materials to farther locations and is suitable for large-scale production lines or occasions requiring cross-regional transportation.

[0032] In a further preferred embodiment of the utility model, a check valve 24 is provided on the air supply pipe 9, a feed channel is provided on the top of the premixing tank 2, a baffle 25 is hinged on the top of the feed channel, an air vent is opened on the baffle 25, and a dust-proof net is provided in the air vent.

[0033] In this embodiment, the design details of the gas supply pipe 9 and the premixing tank 2 enhance the functionality and safety of the system. Its components and beneficial effects are as follows: Check valve 24: It is arranged on the gas supply pipe 9. Its main function is to prevent gas backflow and ensure that the gas can only flow in one direction. During the preparation of refractory materials, it may be necessary to inject gas into the premixing tank 2 to promote mixing or maintain a specific pressure. The presence of the check valve 24 ensures the correct directional flow of gas, prevents safety problems or equipment damage that may be caused by gas backflow, and improves the reliability of the system; baffle 25: It is located on the top feed channel of the premixing tank 2. The hinged design allows the baffle 25 to be opened or closed as needed. The air permeable opening on the baffle 25 allows gas to escape, and the dust-proof net effectively prevents the entry of dust and other impurities. This design not only ensures gas exchange in the premixing tank 2, but also maintains a clean environment in the tank, which helps to improve the quality of refractory materials.

[0034] In a further preferred embodiment of the present invention, a box door that can be opened and closed is provided on one side of the filter box 4 , and a hinge and a handle lock are provided on the box door, and the hinge is fixedly connected to the filter box 4 .

[0035] In this embodiment, the design details of the gas supply pipe 9 and the premixing tank 2 enhance the functionality and safety of the system. Its components and beneficial effects are as follows: Check valve 24: It is arranged on the gas supply pipe 9. Its main function is to prevent gas backflow and ensure that the gas can only flow in one direction. During the preparation of refractory materials, it may be necessary to inject gas into the premixing tank 2 to promote mixing or maintain a specific pressure. The presence of the check valve 24 ensures the correct directional flow of gas, prevents safety problems or equipment damage that may be caused by gas backflow, and improves the reliability of the system; baffle 25: It is located on the top feed channel of the premixing tank 2. The hinged design allows the baffle 25 to be opened or closed as needed. The air permeable opening on the baffle 25 allows gas to escape, and the dust-proof net effectively prevents dust from flying out. This design ensures gas exchange in the premixing tank 2.

[0036] In summary, the technical solution provides a premixing device, which effectively solves the problem of insufficient mixing and difficulty in ensuring uniformity of dust materials during premixing by combining mechanical stirring and airflow-assisted mixing. The advantage of this design is that it improves the quality and efficiency of raw material premixing in refractory production, thereby having a positive impact on key indicators such as the refractoriness, mechanical strength, and thermal shock resistance of the final product.

[0037] Compared with the relevant technology, the combination of the stirring rod 3 inside the premixing tank 2 and the air flow introduced by the air supply pipe 9 effectively solves the problems of insufficient mixing and difficulty in ensuring uniformity of dust materials during the premixing process: the removable filter plate 17 in the filter box 4 and the mesh cover on the air inlet pipe 18 ensure the cleanliness of the air entering the premixing tank 2, reduce the adverse effects on the operation of the equipment, and extend the service life of the equipment. The combined design of the screw conveyor 19 and the belt conveyor 23 provides continuous and stable material transportation, improves production efficiency and material transportation accuracy; the check valve 24 on the air supply pipe 9 and the baffle 25 of the feed channel at the top of the premixing tank 2 are designed to ensure the correct directional flow of gas, prevent safety problems or equipment damage caused by gas backflow, and maintain a clean environment in the tank.

[0038] It is worth noting that the circuits, electronic components and modules involved in the present utility model are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present utility model does not involve improvements to software and methods.

[0039] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0040] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A premix device for refractory material production, characterized in that: include: A platform frame, on which a premixing tank for premixing and processing refractory materials is fixedly installed; A stirring rod rotatably installed in the premixing tank for stirring the refractory material; A filter box disposed on the platform frame for filtering air impurities; An air outlet pipe is fixedly connected to the top of the filter box, and an installation box is fixedly connected to the air outlet end of the air outlet pipe; Rotating a rotating shaft installed on the installation box, wherein the bottom end of the rotating shaft extends into the installation box; A fan blade fixedly mounted on the bottom end of the rotating shaft and capable of rotating to pump air; A gas supply pipe fixedly connected to the top of the installation box for supplying gas to the premixing tank, wherein the gas outlet end of the gas supply pipe is fixedly connected to the premixing tank; A driving mechanism is arranged on the premixing tank and the platform frame, and the driving mechanism is used to drive the rotating shaft and the stirring rod to rotate.

2. The premix device for refractory material production according to claim 1, characterized in that: The driving mechanism comprises: A mounting shell mounted on the platform frame; A motor fixed in the mounting housing; Pulleys fixedly mounted on the output shaft of the motor and the top end of the stirring rod respectively; A timing belt sleeved on the corresponding pulley for transmission; A bearing seat fixed on the platform frame; Rotating a transmission shaft mounted on the bearing seat; The couplings are respectively fixedly mounted on both ends of the transmission shaft, and one end of the corresponding coupling is respectively fixedly connected to the output shaft of the motor and the rotating shaft.

3. The premix device for refractory material production according to claim 1, characterized in that: A plurality of pull-out and detachable filter plates are arranged in the filter box, and the filter plates are used to filter air impurities. One side of the filter box is fixedly connected with an air intake pipe, and a mesh cover is arranged on the air intake end of the air intake pipe.

4. The premix device for refractory material production according to claim 1, characterized in that: A screw conveyor for conveying premixed refractory materials is provided below the premixing tank, a material guide pipe is fixedly installed at the feed end of the screw conveyor, a material valve is provided at the feed end of the material guide pipe, and the feed end of the material valve is fixedly connected to the discharge port of the premixing tank.

5. The premix device for refractory material production according to claim 4, characterized in that: A discharge pipe is fixedly installed on the discharge end of the screw conveyor, and a belt conveyor for receiving the conveyed materials is arranged below the discharge pipe.

6. The premix device for refractory material production according to claim 1, characterized in that: A check valve is arranged on the air supply pipe, a feed channel is arranged on the top of the premixing tank, a baffle is hinged on the top of the feed channel, a vent opening is opened on the baffle, and a dust-blocking net is arranged in the vent opening.

7. The premix device for refractory material production according to claim 1, characterized in that: A box door that can be opened and closed is arranged on one side of the filter box, a hinge and a handle lock are arranged on the box door, and the hinge is fixedly connected to the filter box.

Images