A refractory material conveying and feeding system

Abstract

The present invention provides a refractory material conveying and feeding system, which mainly relates to the field of refractory material feeding for refractory product production. A refractory material conveying and feeding system includes a temporary storage bin, an elevator and a feeding device. A weighing bin and a weighing platform are arranged below the end of the elevator. A feeding device is arranged at the end of the feeding device. The feeding device includes a feeding rack, a feeding arm and a feeding bin. A support frame is arranged on the top of the feeding bin. A guide cylinder is vertically arranged at the center of the support frame. A guide rod is slidably arranged in the guide cylinder. A material guide mold is arranged at the bottom of the guide rod. The beneficial effect of the present invention is that the present invention can complete the layout of low in the middle and high around in the conveying link of the refractory material downward forming mold, thereby improving the production efficiency of large refractory bricks, improving the forming density at the edges of large refractory bricks, and reducing the high defective rate of refractory bricks due to edge damage.

Description

Technical Field

[0001] The invention mainly relates to the field of refractory material feeding for refractory product production, in particular to a refractory material conveying and feeding system. Background Art

[0002] Refractory bricks are a type of building and structural material used in high-temperature industrial furnaces. They are able to maintain stability and structural integrity at high temperatures while resisting chemical attack and physical wear. Refractory bricks are made of alumina (Al 2 O 3 )、MgO、SiO 2 ), chromium ore (Cr 2 O 3 )、Zircon(ZrSiO 4 )、magnesia dolomite(MgCO 3 ·CaCO 3 ), clay, etc. According to different refractory requirements, various raw materials are mixed in proportion, put into the molding mold for pressing and finally sintering to finalize.

[0003] Among them, after the refractory materials are mixed and put into the mold, quantitative conveying equipment is needed to complete the lifting and transportation of the refractory materials. When preparing small batches of refractory bricks, overfilling is usually adopted to fill the entire lower molding mold with refractory materials. This material conveying method is simple and efficient, and can greatly improve the production efficiency of refractory bricks. However, in the production of larger sized refractory bricks, this method is likely to lead to insufficient density at the edge of the refractory bricks, and defects will occur at the edge of the refractory bricks after molding, resulting in a high rate of unqualified refractory bricks. At present, this problem is mainly improved by increasing the thickness of the refractory material at the inner edge of the lower molding mold, but this method is mainly completed manually by the operator, and the processing efficiency is low. In addition, there are also studies on servo automation equipment to replace the equipment for manually picking materials in the lower molding mold, but this equipment does not improve the problem of low material filling efficiency in the lower molding mold, and even the automated equipment cannot reach the efficiency of manual material handling.

[0004] The present invention changes the design concept and realizes that the distribution of the material in the lower forming mold is kept in a state of high surroundings and low middle during the feeding link of the refractory material, so as to improve the overall processing efficiency. Summary of the invention

[0005] In order to solve the shortcomings of the prior art, the present invention provides a refractory material conveying and feeding system, which can complete the layout of low in the middle and high around the edges during the conveying link of the refractory material into the downward forming mold, and no additional material sorting steps are required, which greatly improves the production efficiency of large refractory bricks, and at the same time improves the forming density at the edges of large refractory bricks, and reduces the high defective rate of refractory bricks due to edge damage.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A refractory material conveying and feeding system includes a temporary storage bin, an elevator and a feeding device. The elevator and the conveyor are used as transfer to transfer the mixed refractory materials, so that the refractory materials can skip the conveying process and be conveyed to the feeding part for shaping and feeding.

[0008] The elevator is in an inclined state, and is used to lift the refractory materials in the temporary storage bin to the feeding device. A weighing bin and a weighing platform are arranged below the end of the elevator, and the feeding device is arranged below the weighing bin. The feeding device is arranged horizontally. Through the relay conveying of the elevator and the feeding device, the distance span between the temporary storage bin and the lower forming mold of the refractory materials can be crossed, thereby realizing the automatic conveying process of the refractory materials, and completing the automatic weighing of the refractory materials in the conveying process.

[0009] A feeding device is arranged at the end of the feeding device, and the feeding device includes a feeding rack, a feeding arm and a feeding bin. Feeding tracks are arranged on both sides of the feeding rack, and sliding pairs slidably connected to the feeding tracks are arranged on both sides of the feeding arm. A feeding cylinder is arranged between the feeding rack and the feeding arm. When the feeding cylinder is in an extended state, the feeding arm extends out of the feeding rack to present a cantilever state. The feeding device completes the final stage of refractory material delivery, which realizes the acceptance of refractory materials from the preceding conveying device and the introduction of refractory materials into the lower forming mold, and is the final execution unit.

[0010] A mounting frame is provided at the front end of the feeding arm, a plurality of limit sliders are provided in the mounting frame, a fixed slide rail that slides with the limit slider is provided on the feeding bin, a lifting cylinder is provided at the rear side of the mounting frame, a driving platform corresponding to the lifting cylinder is provided on the feeding bin, the front end of the piston rod of the lifting cylinder passes through the driving platform, a shock absorbing spring is provided between the front end of the piston rod of the lifting cylinder and the driving platform, and an electromagnetic vibrator is provided on the outer wall of the feeding bin. The electromagnetic vibrator is provided to drive the feeding bin to vibrate up and down, realize the uniform vibration of the refractory material in the feeding bin, and provide a uniform flow rate for the subsequent material guiding operation into the lower forming mold.

[0011] The bottom of the feeding bin is provided with a feeding port, the top of the feeding bin is provided with a support frame, the center of the support frame is vertically provided with a guide cylinder, a guide rod is slidably provided in the guide cylinder, a guide cylinder for driving the guide rod to slide up and down is provided on the outside of the feeding bin, a material guide mold is provided at the bottom of the guide rod, the bottom of the material guide mold is in the shape of a quadrangular pyramid, the top of the material guide mold is in the shape of a pyramid, the top of the feeding port has a ring platform adapted to the material guide mold, when the guide rod is in an extended state, the material guide mold is located at the center of the top of the forming mold, when the guide rod is in a contracted state, the material guide mold cooperates with the ring platform to block the feeding port. When the refractory material is directed to the lower forming mold, the material guide mold can shape the introduced refractory material, so that the refractory material is low in the middle and high around in the lower forming mold, so that when the refractory bricks are pressed, the edge part of the refractory bricks is kept sufficiently dense to ensure the forming quality of the refractory bricks.

[0012] Preferably, the elevator is a screw feeder or a plate feeder, and when the weight of the refractory material in the weighing bin reaches the standard, the elevator stops the further conveyance of the refractory material. The elevator is used as the first conveying mechanism of the refractory material to realize the connection between the previous mixing process and the molding process.

[0013] Preferably, the bottom of the weighing bin is in contact with the weighing platform, the weighing platform is a hollow structure in the middle, the bottom of the weighing bin has a discharge port, the discharge port passes through the hollow channel in the middle of the weighing platform, and the discharge port has a plug valve controlled by a cylinder. Through the buffering and transfer of the weighing platform, the refractory material can be weighed during the transportation process, thereby ensuring the material requirements for the final molding of the refractory material.

[0014] Preferably, the ring platform is a downwardly inclined inclined surface structure, and when the material guide mold contacts the bottom of the ring platform, the material guide mold fully covers the ring platform. The material guide mold serves as a shaping component after the refractory material is introduced into the lower molding mold, and also as an opening and closing component of the feeding bin.

[0015] Preferably, the piston rod of the guide cylinder faces upward, and a connecting rod is arranged between the front end of the piston rod of the guide cylinder and the guide rod. When the guide cylinder contracts, the guide rod drives the material guide mold to descend, and when the guide cylinder extends, the guide rod drives the material guide mold to rise. This structure can ensure that the installation height is not too high and avoid interference with the molding machine.

[0016] Preferably, the support frame is arranged at the rear side of the feeding bin, and the support frame does not cover the front opening of the feeding bin.

[0017] Preferably, a connection portion is provided between the top and bottom of the material guiding mold, and the top diameter of the connection portion is greater than or equal to the bottom diameter of the connection portion. The arrangement of the material guiding mold ensures the stable fall of the refractory material, and all the refractory material can be stably introduced into the lower molding mold, thereby preventing the refractory material from being retained in the feeding bin.

[0018] Preferably, when the lifting cylinder is extended, the bottom feeding port of the feeding bin conflicts with the top of the forming mold.

[0019] Preferably, the electromagnetic vibrator is used to drive the feeding bin to perform reciprocating vibration in the vertical direction.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The present invention realizes the automatic feeding of refractory materials in the batching link and the molding link, can complete the quantitative and stable transportation of refractory materials, meets the automatic quantitative supply of refractory materials in the production process of large-scale refractory bricks, improves the automation degree of refractory brick production, and improves production efficiency.

[0022] The present invention realizes the automatic feeding of refractory materials, can uniformly introduce refractory materials into the lower forming mold, and shape the refractory materials in the lower forming mold so that the refractory materials are low in the middle and high around in the lower forming mold. When the refractory bricks are pressed and formed, the refractory materials around are thicker, which can ensure the density of the edges of large refractory bricks after forming, thereby reducing the probability of the edges falling off and wearing after forming, improving the forming quality of the refractory bricks, and reducing the defective rate.

[0023] The present invention realizes uniform flow guidance of refractory materials through the lifting action of the material guiding mold, and can make the refractory materials uniformly introduced into the lower molding mold in the gap between the material guiding mold and the material outlet. The material guiding mold itself has uniform flow guidance effect, which ensures the thickness and density of the refractory materials in the lower molding mold, and provides a stable foundation for the molding of refractory bricks. After being raised, the material guiding mold can be used as the opening and closing mechanism at the bottom of the feeding bin, which has a simple structure and is easy to operate, and can meet the long-term operation requirements of the equipment.

[0024] The feeding device of the present invention can perform telescopic movements within a short stroke, which not only meets the requirements for receiving refractory materials, but also realizes the stable introduction of refractory materials into the lower forming mold. The extension structure of the cantilever ensures the stability of refractory material feeding and can avoid interference between the upper forming mold and the feeding bin when pressing refractory bricks. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Attached Figure 1 It is a schematic diagram of the stereoscopic viewing angle structure of the present invention;

[0026] Attached Figure 2It is a schematic diagram of the main viewing angle structure of the present invention;

[0027] Attached Figure 3 It is a schematic diagram of the structure of the feeding device and the feeding device of the present invention;

[0028] Attached Figure 4 It is a left-side structural schematic diagram of the feeding device and the feeding device of the present invention;

[0029] Attached Figure 5 It is a schematic diagram of the feeding bin structure of the present invention;

[0030] Attached Figure 6 It is a schematic diagram of the feeding device and the lower forming mold in use of the present invention;

[0031] Attached Figure 7 It is a schematic diagram of the structure of the material guiding die of the present invention;

[0032] Attached Figure 8 The present invention Figure 1 A partial enlarged structural diagram of the middle part;

[0033] Attached Fig. 9 The present invention Figure 2 A schematic diagram of the partially enlarged structure of the middle B part;

[0034] Attached Fig.10 The present invention Figure 3 Schematic diagram of the partial enlarged structure of part C in the middle.

[0035] Numbers shown in the accompanying drawings: 1. feeding device; 2. feeding device; 3. temporary storage silo; 4. weighing platform; 5. weighing bin; 6. elevator; 7. feeding silo; 8. mounting frame; 9. material guide mold; 10. electromagnetic vibrator; 11. feeding rack; 12. feeding track; 13. sliding pair; 14. feeding arm; 15. feeding cylinder; 51. gate valve; 71. fixed slide rail; 72. driving platform; 73. feeding port; 74. supporting frame; 75. guide cylinder; 76. guide rod; 77. guide cylinder; 78. ring table; 81. limit slider; 82. lifting cylinder; 83. shock-absorbing spring. DETAILED DESCRIPTION

[0036] The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the application.

[0037] like Figure 1-9As shown, a refractory material conveying and feeding system described in the present invention includes a temporary storage bin 3, an elevator 6 and a feeding device 2, wherein the temporary storage bin 3 serves as a temporary storage location for mixed refractory materials, the temporary storage bin 3 is connected to a mixing device, and the refractory materials mixed by the mixing device are conveyed to the temporary storage bin 3 for temporary storage via a conveyor belt or a transfer device.

[0038] The refractory material lifting and conveying system of the present invention mainly comprises two parts, one of which is a preceding refractory material transfer unit, and the other is a refractory material placing unit following the refractory material transfer unit.

[0039] Refractory material transfer unit:

[0040] The refractory material transfer unit mainly includes an elevator 6 and a feeding device 2. The elevator 6 is connected between the temporary storage bin 3 and the feeding device 2 in an inclined state, and lifts the refractory material in the temporary storage bin 3 to the feeding device 2. The elevator 6 is a screw feeder or a plate feeder. A weighing bin 5 and a weighing platform 4 are arranged below the end of the elevator 6. A weight sensor is installed on the weighing platform 4. The bottom of the weighing bin 5 is in contact with the top surface of the weighing platform 4, and the refractory material in the weighing bin 5 is weighed by the weighing platform 4. When the weight of the refractory material in the weighing bin 5 reaches the standard, the elevator 6 stops the continued transportation of the refractory material. Specifically, when the weight of the refractory material in the weighing bin 5 reaches 90% of the standard weight, the elevator 6 reduces the conveying rate to ensure that the refractory material can accurately reach the standard weight without exceeding the standard weight.

[0041] Specifically, the weighing platform 4 is a hollow structure in the middle, and the weighing bin 5 has a discharge port at the bottom, which passes through the hollow channel in the middle of the weighing platform 4. The discharge port is provided with a gate valve 51 controlled by a cylinder. When the weighing is completed and the last refractory brick is formed, the gate valve 51 is opened under the control of the cylinder to release the refractory material, which is received by the feeding device 2 and transported to the direction of the lower forming mold.

[0042] The feeding device 2 is a belt conveyor, the starting end of the feeding device 2 is arranged below the weighing bin 5, and the end of the feeding device 2 is located above the feeding device 1, for completing the progressive transfer of the refractory material. The feeding device 2 is arranged horizontally.

[0043] Refractory material delivery unit:

[0044] The refractory material feeding unit is a feeding device 1 for feeding refractory materials into the lower molding die. The feeding device 1 can feed the refractory materials into the lower molding die in a manner of high around and low in the middle, which is convenient for the edge density of the refractory bricks during pressing and molding, reduces the defects of the edges of the refractory bricks, and improves the qualified rate and product quality of the refractory bricks.

[0045] The feeding device 1 includes a feeding frame 11, a feeding arm 14, and a feeding bin 7. The feeding frame 11 serves as the installation position for various components on the feeding device 1 and stably supports the displacement of the feeding bin 7. Specifically, feeding tracks 12 are symmetrically installed on both sides of the feeding frame 11, and sliding pairs 13 that are slidably connected to the feeding tracks 12 are installed on both sides of the feeding arm 14. The sliding pairs 13 are relatively long, enabling the feeding arm 14 to extend to the rear side of the feeding tracks 12 in a cantilever state, so as to realize the feeding of refractory materials into the lower forming die through the feeding bin 7. A feeding cylinder 15 is installed between the feeding frame 11 and the feeding arm 14. When the feeding cylinder 15 is in the extended state, the feeding arm 14 extends outside the feeding frame 11 in a cantilever state to ensure that the feeding bin 7 can be freely retracted and extended between the receiving position and the lower forming die. When the feeding cylinder 15 extends, the bottom feeding port 73 of the feeding bin 7 just docks with the lower forming die, and there is a certain gap between them, enabling the refractory materials to be evenly and stably fed into the lower forming die. After the feeding is completed, the feeding cylinder 15 contracts, causing the feeding bin 7 to disengage from the lower forming die, thereby preventing interference with the upper forming die used for pressing and ensuring the stable forming of refractory bricks.

[0046] Specifically, the feeding bin 7 has a three-stage structure. The top of the feeding bin 7 is a rectangular chamber, which serves as the main component for receiving and containing refractory materials, and its top opening serves as the guiding inlet for refractory materials. The middle and lower parts of the feeding bin 7 are of a conical structure, with the bottom of the conical structure narrowing gradually to adapt to the opening size of the lower forming die, serving as a transition structure. The bottom of the feeding bin 7 is a rectangular release channel with a size slightly smaller than that of the lower forming die, and its bottom has a feeding port 73 to facilitate the export of refractory materials. The size of the feeding port 73 is smaller than that of the lower forming die, which can stably introduce the materials in the feeding bin 7 into the lower forming die, avoid the loss of refractory materials, and ensure the forming quality of refractory bricks.

[0047] The feeding bin 7 is slidably installed on the feeding arm 14 to ensure that the feeding bin 7 can perform lifting actions, facilitating docking with the lower forming die and retracting operations after feeding is completed. Specifically, the front end of the feeding arm 14 has a mounting frame 8, the mounting frame 8 is in a horizontal state, and a number of limiting sliders 81 are vertically arranged inside the mounting frame 8. The limiting sliders 81 should be installed evenly or symmetrically inside the mounting frame 8, and the limiting sliders 81 serve as guiding components for the vertical sliding of the feeding bin 7. Fixed sliding rails 71 that are slidably engaged with the limiting sliders 81 are installed on the feeding bin 7. The stable cooperation between the fixed sliding rails 71 and the limiting sliders 81 can ensure the stable lifting action of the feeding bin 7.

[0048] A lifting cylinder 82 is installed at the rear side of the mounting frame 8, and a driving platform 72 corresponding to the lifting cylinder 82 is provided on the feeding bin 7. The lifting action of the lifting cylinder 82 can drive the feeding bin 7 to lift stably, realizing the feeding and detachment of refractory materials into the lower forming die.

[0049] The feeding bin 7, as the last component for conveying refractory materials into the lower forming mold, determines whether the density of the refractory materials in the lower forming mold is uniform. The feeding bin 7 specifically includes the following modules: a vibration module, a shaping module, and an opening and closing module. The vibration module is used to vibrate the refractory materials in each area of ​​the feeding bin 7 to make the density and thickness of the refractory materials in each part of the feeding bin 7 consistent; the shaping module is used to plasticize the top of the refractory material introduced into the lower forming mold to ensure that the top of the refractory material is high on all sides and low in the center; the opening and closing module is used to realize the opening and closing of the discharge port at the bottom of the feeding bin 7, so as to prevent leakage when receiving the refractory material, and ensure that the refractory material is uniformly introduced into the lower forming mold.

[0050] Vibration module:

[0051] Since the end of the feeding device 2 only corresponds to one side of the feeding bin 7, it is impossible to ensure that the materials introduced into the feeding bin 7 can be evenly arranged, which will cause uneven thickness of the refractory material introduced into the lower molding mold, making the density of the refractory bricks uneven after molding, affecting the subsequent quality of use.

[0052] In order to make the refractory material contained in the feeding bin 7 more evenly distributed, the present invention sets an electromagnetic vibrator 10 on the outer wall of the feeding bin 7. The vibration direction of the electromagnetic vibrator 10 is vertical. Through the high-frequency vibration of the electromagnetic vibrator 10, the fluidity of the refractory material can be utilized to gradually evenly spread and level during the vibration, so that the refractory material in the feeding bin 7 can maintain a consistent density in each area, so as to ensure that after being introduced into the lower forming mold, the density and thickness of the refractory material in the lower forming mold remain consistent. The electromagnetic vibrator 10 mainly drives the feeding bin 7 to vibrate in the vertical direction. At the same time, the electromagnetic vibrator 10 drives the entire iron shell of the feeding bin 7 to vibrate at a high frequency, thereby driving the refractory material therein to vibrate evenly, and ensuring the thickness and density of each area of ​​the refractory material in the feeding bin 7.

[0053] Specifically, in order to effectively maintain and transmit the vibration of the feeding bin 7 to the refractory material stored therein, a damping mechanism is installed on the outside of the feeding bin 7. The damping mechanism includes a damping spring 83, the surface of the driving platform 72 has a through hole, the front end of the piston rod of the lifting cylinder 82 passes through the through hole on the driving platform 72, and the front end of the piston rod of the lifting cylinder 82 is fixed with a limit head, and the diameter of the limit head is greater than the diameter of the through hole. The lifting cylinder 82 has a ring platform, and the diameter of the ring platform is also greater than the diameter of the through hole. The damping spring 83 is sleeved on the front end of the piston rod of the lifting cylinder and is located between the driving platform 72 and the ring platform. When vibrated by the electromagnetic vibrator 10, the feeding bin 7 reciprocates in the vertical direction. At this time, the feeding bin 7 stably vibrates up and down under the restriction of the limit slider 81. The damping spring 83 continuously absorbs and releases energy when the feeding bin 7 vibrates, and does not directly transmit the vibration to the lifting cylinder 82, ensuring the stable use of the lifting cylinder 82. When the feeding bin 7 needs to be pressed down to dock with the lower molding die, the lifting cylinder 82 extends, and the bottom surface of the driving platform 72 contacts the limit head, thereby releasing the feeding bin 7 to the bottom to complete the docking with the lower molding die.

[0054] Shaping module:

[0055] The shaping module includes a guide die 9 placed at the top of the lower molding die when the refractory material is introduced into the lower molding die. The guide die 9 is located at the center of the lower molding die, and guides and shapes the refractory material falling into the lower molding die, so that the top of the refractory material is low in the middle and high around under the restriction of the guide die 9. Specifically, a support frame 74 is installed on the top of the feeding bin 7. The support frame 74 is installed on the side of the feeding bin 7 away from the feeding device 2. The support frame 74 does not cover the front opening of the feeding bin 7, and serves as a channel for the feeding device 2 to introduce into the feeding bin 7. A guide cylinder 75 is vertically arranged at the center of the support frame 74, and a guide rod 76 is slidably installed in the guide cylinder 75. The axis of the guide rod 76 is colinear with the axis of the feeding bin 7. A guide cylinder 77 for driving the guide rod 76 to slide up and down is installed on the outside of the feeding bin 7. The piston rod of the guide cylinder 77 faces upward, and the top of the piston rod of the guide cylinder 77 is connected to the top of the guide rod 76 by a connecting rod. The guide die 9 is installed at the bottom of the guide rod 76. When the guide cylinder 77 contracts, the guide rod 76 drives the material guiding mold 9 to descend, and when the guide cylinder 77 extends, the guide rod 76 drives the material guiding mold 9 to rise.

[0056] The bottom of the material guide mold 9 is in the shape of a quadrangular pyramid, and the top of the material guide mold 9 is in the shape of a pyramid. When the refractory material is introduced into the lower molding mold, the quadrangular pyramid structure at the bottom of the material guide mold 9 begins to contact the bottom of the material guide mold 9 when the refractory material is poured above the lower molding mold. Under the obstruction of the material guide mold 9, the refractory material gradually continues to accumulate under the restriction of the material guide mold 9 and the lower molding mold, and finally forms a state of being low in the middle and high around. The density of the refractory material after vibration in the feeding bin 7 is consistent, which ensures the consistency of the density and thickness of the refractory material in the lower molding mold after falling.

[0057] Specifically, in this embodiment, a ring platform can be added to the bottom edge of the material guide mold. The setting of the ring platform makes the top of the edge of the refractory material present a certain plane, and makes the refractory material present a certain thickness at the height around it, further ensuring the molding density of the edge of the refractory brick.

[0058] The top of the material guide mold is pyramidal, and the bottom of the guide rod 76 is installed just at the center point of the pyramid. The pyramidal structure can evenly guide the refractory material when it falls, facilitating the uniform falling of the refractory material, while avoiding the residue of refractory material to ensure the molding quality of the refractory bricks.

[0059] Opening and closing module:

[0060] The opening and closing module controls the opening and closing of the feeding port 73 at the bottom of the feeding bin 7, and controls the refractory material in the feeding bin 7 to be uniformly introduced into the lower molding die through the opening and closing module. The top of the feeding port 73 has a ring platform 78 that matches the material guide mold 9. When the guide rod 76 is in an extended state, the material guide mold 9 is located at the center of the top of the molding die. When the lifting cylinder 82 is extended, the guide rod 76 is in a contracted state, and the material guide mold 9 conflicts with the ring platform 78. When the material guide mold 9 conflicts with the bottom of the ring platform 78, the material guide mold 9 fully covers the ring platform 78. The closure of the feeding port 73 is achieved by the cooperation between the top of the material guide mold 9 and the ring platform 78, thereby blocking the feeding port 73.

[0061] Specifically, the ring platform 78 is a downward inclined slope structure. The inclined ring platform 78 can cooperate with the material guiding mold 9 to stably close the feeding bin 7, and can also guide the refractory material after the feeding port 73 is opened without trapping the refractory material, thereby ensuring the introduction density and introduction quality of the refractory material in the molding mold.

[0062] More specifically, there is a connecting portion between the top and bottom of the material guiding mold 9, and the top diameter of the connecting portion is greater than or equal to the bottom diameter of the connecting portion. The setting of the connecting portion increases the overall thickness of the material guiding mold 9, and can enable the bottom of the material guiding mold 9 to more stably realize the diversion and shaping of the refractory material in the lower molding mold.

[0063] The structure of the present invention is simple, and the cooperation between each unit module is close. Through the automated conveying system, the lifting, conveying and diversion of refractory materials can be realized, and then the cloth feeding method with low in the middle and high around can be carried out in the lower forming die. When pressing refractory bricks, this kind of cloth feeding method can effectively guarantee the density at the edges of refractory bricks, thereby reducing the probability of damage to the edges of refractory bricks and improving the forming quality of refractory bricks.

Claims

1. A refractory material conveying and feeding system, comprising a temporary storage bin (3), an elevator (6) and a feeding device (2), characterized in that: The elevator (6) is used to lift the refractory material in the temporary storage bin (3) onto the feeding device (2). A weighing bin (5) and a weighing platform (4) are arranged below the end of the elevator (6). The feeding device (2) is arranged below the weighing bin (5). A feeding device (1) is arranged at the end of the feeding device (2). The feeding device (1) comprises a feeding rack (11), a feeding arm (14) and a feeding bin (7). Feeding rails (12) are arranged on both sides of the feeding rack (11). Sliding pairs (13) slidably connected to the feeding rails (12) are arranged on both sides of the feeding arm (14). A feeding cylinder (15) is arranged between the feeding rack (11) and the feeding arm (14). A mounting frame (8) is arranged at the front end of the feeding arm (14), so that the feeding bin (7) is slidably installed in the mounting frame (8) in a vertical direction. An electromagnetic vibrator (10) is arranged on the outer wall of the feed bin (7); a feed port (73) is provided at the bottom of the feed bin (7); a support frame (74) is arranged on the top of the feed bin (7); a guide cylinder (75) is vertically arranged at the center of the support frame (74); a guide rod (76) is slidably arranged in the guide cylinder (75); a guide cylinder (77) for driving the guide rod (76) to slide up and down is arranged on the outer side of the feed bin (7); a material guide mold (9) is arranged at the bottom of the guide rod (76); the bottom of the material guide mold (9) is in the shape of a quadrangular pyramid; the top of the material guide mold (9) is in the shape of a pyramid; the top of the feed port (73) is provided with a ring platform (78) adapted to the material guide mold (9); when the guide rod (76) is in a retracted state, the material guide mold (9) cooperates with the ring platform (78) to block the feed port (73).

2. A refractory material conveying and feeding system according to claim 1, characterized in that: The elevator (6) is a screw feeder or a plate feeder. When the weight of the refractory material in the weighing bin (5) reaches a standard, the elevator (6) stops conveying the refractory material.

3. A refractory material conveying and feeding system according to claim 1, characterized in that: The bottom of the weighing bin (5) is in contact with the weighing platform (4), the weighing platform (4) is a hollow structure in the middle, the bottom of the weighing bin (5) is provided with a discharge port, the discharge port passes through the hollow channel in the middle of the weighing platform (4), and the discharge port is provided with a cylinder-controlled gate valve (51).

4. A refractory material conveying and feeding system according to claim 1, characterized in that: The ring platform (78) is a downwardly inclined inclined surface structure, and when the material guiding mold (9) contacts the bottom of the ring platform (78), the material guiding mold (9) completely covers the ring platform (78).

5. A refractory material conveying and feeding system according to claim 1, characterized in that: The piston rod of the guide cylinder (77) faces upward, and a connecting rod is provided between the front end of the piston rod of the guide cylinder (77) and the guide rod (76). When the guide cylinder (77) contracts, the guide rod (76) drives the material guide mold (9) to descend, and when the guide cylinder (77) extends, the guide rod (76) drives the material guide mold (9) to ascend.

6. A refractory material conveying and feeding system according to claim 1, characterized in that: The support frame (74) is arranged on the rear side of the feeding bin (7), and the support frame (74) does not cover the front opening of the feeding bin (7).

7. A refractory material conveying and feeding system according to claim 1, characterized in that: The material guiding die (9) has a connecting portion between the top and the bottom, and the top diameter of the connecting portion is greater than or equal to the bottom diameter of the connecting portion.

8. A refractory material conveying and feeding system according to claim 1, characterized in that: When the feeding cylinder (15) is in an extended state, the feeding arm (14) extends outside the feeding rack (11) to present a cantilever state.

9. A refractory material conveying and feeding system according to claim 1, characterized in that: The electromagnetic vibrator (10) is used to drive the feeding bin (7) to perform reciprocating vibration in a vertical direction.

10. A refractory material conveying and feeding system according to claim 1, characterized in that: A plurality of limit slide blocks (81) are arranged in the installation frame (8); a fixed slide rail (71) slidably matched with the limit slide blocks (81) is arranged on the feeding bin (7); a lifting cylinder (82) is arranged on the rear side of the installation frame (8); a driving platform (72) corresponding to the lifting cylinder (82) is arranged on the feeding bin (7); a front end of a piston rod of the lifting cylinder (82) passes through the driving platform (72); and a shock absorbing spring (83) is arranged between the front end of the piston rod of the lifting cylinder (82) and the driving platform (72).

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