Improved automatic masonry structure for refractory bricks of rotary cement kiln

Abstract

The utility model relates to an improved automatic masonry structure for refractory bricks of a rotary cement kiln, which comprises a refractory brick supply structure, a kiln body inner storage type refractory brick circumferential masonry structure, a rice rack supporting structure, a formwork supporting structure and a brick masonry structure arranged between the rice rack supporting structure and the formwork supporting structure. The rice rack supporting structure comprises a connecting sleeve shaft, a supporting cylinder body connecting base structure and a jacking cylinder body structure. The improved masonry formwork structure can accurately conduct masonry of complete refractory bricks within the diameter of a brick body and the diameter of a kiln body, and it is guaranteed that the butt joint positions of masonry of the upper semicircle and masonry of the lower semicircle are not located on the same vertical line. And the displacement deviation is reduced, so that the butt joint degree of a gap between the previous ring-shaped masonry brick body and the next ring-shaped masonry brick body is improved. And the clinging gap with the kiln cylinder body is not more than 1mm. The jacking stability of the rice rack structure is not only suitable for masonry of refractory bricks in the cement rotary kiln, but also can be applied to similar rotary kilns in other industries after improvement. And the labor intensity of operators is reduced.

Description

Technical Field

[0001] The utility model relates to the field of cement rotary kilns, in particular to an improved automatic masonry structure of refractory bricks of cement rotary kilns. Background Art

[0002] During the cement clinker firing process, the refractory brick lining in the rotary kiln is affected by high temperature and temperature fluctuations, as well as the erosion and chemical erosion of materials and airflow. The bricks will become thinner, and the insulation and heat preservation effects will deteriorate, causing a "red kiln". The kiln needs to be stopped and the temperature needs to be lowered to 45 degrees, and personnel need to enter the kiln to replace the bricks.

[0003] The masonry method of rotary kiln refractory bricks is mainly manual, and the arch frame method is used. Its characteristics can effectively ensure that the masonry brick lining and the kiln barrel are reliably concentric, and the lock seam steel plate is rarely used, and the life of the brick lining is extended. It is mainly used in large kilns with a diameter of more than 4m in China. Problems with this masonry method: the overall structure size is large, it cannot be directly entered from the kiln door, and it takes 5 hours of manual assembly in the barrel. The pasting method is currently the main masonry method used in developed Western countries, and this method has also been tried on a small number of kilns in China. This masonry method has very high requirements for the construction environment and material quality, otherwise quality problems are likely to occur. Due to the relatively small space of the kiln body, poor internal ventilation conditions, high concentration of dust and harmful gases generated by material burning, and each brick weighs 11Kg, there are fewer and fewer workers willing to do this work. At present, there is no any form of robot masonry forming equipment at home and abroad. Therefore, it is necessary to develop an automatic masonry equipment for refractory bricks in rotary kilns to replace workers to quickly complete brick masonry.

[0004] Publication number: CN118168319A An automated masonry structure for refractory bricks of a cement rotary kiln, comprising a refractory brick supply structure arranged at the kiln mouth of the cement rotary kiln and a circumferential masonry structure for refractory bricks in a retracted manner in the kiln body, the circumferential masonry structure for refractory bricks in a retracted manner in the kiln body comprising a positioning walking seat structure, an expansion control structure, an expansion formwork structure and an automatic positioning masonry structure, the automatic positioning masonry structure comprising a segmented position control connection structure, a rotating masonry point limit support frame structure and an automatic opposing masonry structure for refractory bricks.

[0005] In the prior art, the formwork structure is a circular structure. When the same diameter is masonry in the kiln body, the lower half of the circle is first masonry and the upper half of the circle is masonry later. It is easy for the upper and lower semicircular masonry to be not on a vertical line (that is, the upper and lower semicircular bricks form misaligned masonry). In addition, after the masonry is completed, the existing formwork structure is in position, and displacement deviation is easy to occur during the positioning process, so that the gap between the upper masonry ring brick body and the next ring masonry brick body is not connected, resulting in the easy separation of the later pouring material. At the same time, the frame structure is prone to unstable positioning, which leads to the mismatch between the masonry and the original design program. Utility Model Content

[0006] The object of the utility model is to provide an improved automatic masonry structure for refractory bricks of a cement rotary kiln, and to solve the problem of poor precision in the automatic masonry structure of the existing refractory bricks of the cement rotary kiln.

[0007] The technical solution adopted by the utility model to solve its technical problems is: an improved automatic masonry structure for refractory bricks of a cement rotary kiln, including a refractory brick supply structure arranged at the mouth of the cement rotary kiln and a circumferential masonry structure for the refractory bricks with inward contraction in the kiln body corresponding to the refractory brick supply structure. The circumferential masonry structure for the refractory bricks with inward contraction in the kiln body includes a positioning walking seat body structure, a folding main body control structure arranged on the upper part of the positioning walking seat body structure, a sleeve control structure connected to the folding main body control structure, a rice frame support structure arranged on the upper part of the assembly control structure, a die frame support structure, and a brick masonry structure arranged between the rice frame support structure and the die frame support structure. The characteristics are as follows: the rice frame support structure includes a connecting sleeve shaft arranged on the upper part of the folding main body control structure, a support cylinder body connecting seat structure connected to the upper part of the connecting sleeve shaft, and a top cylinder body structure evenly distributed on the support cylinder body connecting seat structure.

[0008] The die frame support structure includes a die frame rotating shaft structure arranged on the upper part of the folding main body control structure, a die frame unfolding body structure arranged on the outer periphery of the die frame rotating shaft structure, and a positioning pressing die structure arranged in the die frame unfolding body structure.

[0009] The support cylinder body connecting seat structure includes evenly distributed dispersion support seats connected to the connecting sleeve shaft, an arc connecting body arranged on the tops of the plurality of dispersion support seats, and a linkage piston rod installation hole seat arranged on the upper part of the arc connecting body. The top cylinder body structure includes a top cylinder connecting sleeve body connected to the dispersion support seat, an electric servo cylinder arranged in the top cylinder connecting sleeve body, a brick top pressing table arranged at the output end of the electric servo cylinder, and a linkage piston rod arranged on the outer side of the top cylinder connecting sleeve body and connected to the linkage piston rod installation hole seat.

[0010] The die frame rotating shaft structure includes an outer diameter positioning tooth sleeve connected to the die frame rotating shaft structure, an inner diameter adjusting planetary gear connected to the outer diameter positioning tooth sleeve, and a sealing edge sleeve plate arranged outside the outer diameter positioning tooth sleeve.

[0011] The die frame unfolding body structure includes a central support main frame and folding brackets arranged on both wings of the central support main frame. A folding cylinder assembly is arranged between the folding brackets and the central support main frame, and a positioning pressing die structure is arranged at the outer edge inside the folding brackets and the central support main frame.

[0012] The described positioning and pressing die structure includes: a set of brick-pushing cylinders composed of 2 - 3 brick-pushing cylinders between the folding bracket and the central support main frame. There are 16 + 1 groups of brick-pushing cylinders arranged in a circle for brick bodies, and the current group of refractory bricks is pushed to the masonry position. Moreover, each cylinder can be controlled individually or in combination.

[0013] The described brick-pushing cylinder includes a guide column fixed brick cylinder, a top pressing plate arranged on the upper part of the guide column fixed brick cylinder, and a wear-resistant layer arranged on the upper part of the top pressing plate.

[0014] The beneficial effects of the present utility model: The improved masonry die structure can accurately carry out the masonry of complete refractory bricks within the diameter of the brick body and the kiln body, ensuring that the butt joints of the upper and lower semi-circular masonries are not on the same vertical line. And it reduces the displacement deviation, improving the gap docking degree between the previous masonry ring brick body and the next ring masonry brick body. The tight-fitting gap with the kiln barrel is not greater than 1 mm, and the masonry quality is more guaranteed. The top pressing of the die structure is stable, which is not only suitable for the masonry of refractory bricks in a cement rotary kiln, but also can be applied to similar rotary kilns in other industries after improvement. It reduces the labor intensity of the operating workers.

[0015] The following will combine the drawings and embodiments to make a more detailed description of the present utility model. Description of the Drawings

[0016] Figure 1 It is a structural schematic diagram of the present utility model.

[0017] Figure 2 is Figure 1 an enlarged view of

[0018] Figure 3 is Figure 1 a three-dimensional view of

[0019] Figure 4 is Figure 1 a folding state diagram of

[0020] Figure 5 It is a structural schematic diagram of the die support structure of the present utility model.

[0021] Figure 6 It is a structural schematic diagram of the die support structure of the present utility model.

[0022] Figure 7 It is a structural schematic diagram of the brick-pushing cylinder of the present utility model.

[0023] Figure 8 It is a usage state diagram of the present utility model.

[0024] In the figure: 1. Refractory brick supply structure, 2. Positioning walking seat body structure, 3. Sleeve control structure, 4. Brick masonry structure, 5. Connecting sleeve shaft, 6. Dispersed support seat, 7. Arc connecting body, 8. Linkage piston rod mounting hole seat, 9. Top cylinder connecting sleeve body, 10. Electric servo cylinder, 11. Brick body tightening table, 12. Linkage piston rod, 13. Outer diameter positioning gear sleeve, 14. Inner diameter adjusting planetary gear, 15. Edge sealing sleeve plate, 16. Central support main frame, 17. Folding and retracting support, 18. Folding and retracting cylinder assembly, 19. Top brick cylinder, 20. Guide post fixed brick cylinder, 21. Top pressing plate, 22. Wear-resistant layer, 23. Cement rotary kiln, 24. Folding and retracting main body control structure. Detailed implementation mode

[0025] In the application text, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] Example 1, as Figures 1-8 shown, an improved automatic masonry structure for refractory bricks of a cement rotary kiln includes a cement rotary kiln 23, a refractory brick supply structure 1 provided at the mouth of the cement rotary kiln, and a circumferential masonry structure for retracted refractory bricks in the kiln body corresponding to the refractory brick supply structure. The circumferential masonry structure for retracted refractory bricks in the kiln body includes a positioning walking seat body structure 2, a folding and retracting main body control structure provided on the upper part of the positioning walking seat body structure 2, a sleeve control structure 3 connected to the folding and retracting main body control structure, a formwork support structure and a formwork support structure provided on the upper part of the assembly control structure, and a brick masonry structure 4 provided between the formwork support structure and the formwork support structure. The formwork support structure includes a connecting sleeve shaft 5 provided on the upper part of the folding and retracting main body control structure 24, a support cylinder body connecting seat structure connected to the upper part of the connecting sleeve shaft 5, and a top pressing cylinder body structure evenly distributed on the support cylinder body connecting seat structure.

[0028] The described die carrier support structure includes a die carrier rotating shaft structure provided at the upper part of the folding main body control structure, a die carrier unfolding body structure provided on the outer periphery of the die carrier rotating shaft structure, and a positioning pressing die structure provided in the die carrier unfolding body structure.

[0029] The described support cylinder body connecting seat structure includes uniformly distributed dispersion support seats 6 connected to the connecting sleeve shaft 5, an arc connecting body 7 provided at the tops of multiple dispersion support seats, and a linkage piston rod mounting hole seat 8 provided at the upper part of the arc connecting body. The described top pressing cylinder body structure includes a top cylinder connecting sleeve body 9 connected to the dispersion support seat, an electric servo cylinder 10 provided in the top cylinder connecting sleeve body, a brick body top pressing table 11 provided at the output end of the electric servo cylinder, and a linkage piston rod 12 provided outside the top cylinder connecting sleeve body and connected to the linkage piston rod mounting hole seat.

[0030] The described die carrier rotating shaft structure includes an outer diameter positioning tooth sleeve 13 connected to the die carrier rotating shaft structure, an inner diameter adjusting planetary gear 14 connected to the outer diameter positioning tooth sleeve, and a sealing edge sleeve plate 15 provided outside the outer diameter positioning tooth sleeve.

[0031] The described die carrier unfolding body structure includes a central support main frame 16 and folding brackets 17 provided on both wings of the central support main frame. A folding cylinder assembly 18 is provided between the folding brackets and the central support main frame, and a positioning pressing die structure is provided at the outer edge inside the folding brackets and the central support main frame.

[0032] The described positioning pressing die structure includes: a set of brick top pressing cylinders 19 composed of 2 - 3 brick top pressing cylinders is provided between the folding brackets and the central support main frame. There are 16 + 1 sets of brick top pressing cylinder groups arranged in a circle for laying bricks, and the current set of refractory bricks is pushed to the laying position; and each cylinder can be controlled individually or in combination.

[0033] The described brick top pressing cylinder includes a guide post fixed brick cylinder 20, a top pressing plate 21 provided at the upper part of the guide post fixed brick cylinder, and a wear-resistant layer 22 provided at the upper part of the top pressing plate.

[0034] The improved bricklaying die carrier structure can accurately lay the complete refractory bricks within the diameter of the brick body and the kiln body, ensuring that the butt joints of the upper and lower semi-circular bricklayings are not on the same vertical line. And it reduces the displacement deviation, improving the gap docking degree between the previous ring of laid bricks and the next ring of laid bricks. The tight-fitting gap with the kiln barrel is not greater than 1 mm, and the bricklaying quality is more guaranteed. The top pressing stability of the die carrier structure is not only suitable for the bricklaying of refractory bricks in a cement rotary kiln, but can also be applied to similar rotary kilns in other industries after improvement. It reduces the labor intensity of the operating workers.

[0035] The above embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary engineering and technical personnel in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

[0036] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.

Claims

1. An improved automatic masonry structure for refractory bricks of a cement rotary kiln, comprising a refractory brick supply structure arranged at the mouth of the cement rotary kiln, and a circumferential masonry structure for inwards retractable refractory bricks in the kiln body corresponding to the refractory brick supply structure. The circumferential masonry structure for inwards retractable refractory bricks in the kiln body includes a positioning and walking seat body structure, a folding main body control structure arranged on the upper part of the positioning and walking seat body structure, a sleeve control structure connected to the folding main body control structure, a meter frame support structure arranged on the upper part of the assembly control structure, a formwork support structure, and a brick masonry structure arranged between the meter frame support structure and the formwork support structure, characterized in that: The described rice rack support structure includes a connecting sleeve shaft provided at the upper part of the folding main body control structure, a support cylinder connecting seat structure connected to the upper part of the connecting sleeve shaft, and a pressing cylinder structure evenly distributed on the support cylinder connecting seat structure.

2. The automated masonry structure of the improved refractory brick for a cement rotary kiln according to claim 1, characterized in that: The described mold rack support structure includes a mold rack rotating shaft structure provided at the upper part of the folding main body control structure, a mold rack unfolding frame body structure provided on the outer periphery of the mold rack rotating shaft structure, and a positioning pressing mold structure provided in the mold rack unfolding frame body structure.

3. The automated masonry structure of the improved refractory brick for a cement rotary kiln according to claim 1, characterized in that: The described support cylinder connecting seat structure includes evenly distributed dispersive support seats connected to the connecting sleeve shaft, an arc connecting body provided at the tops of the plurality of dispersive support seats, and a linkage piston rod mounting hole seat provided at the upper part of the arc connecting body; the described pressing cylinder structure includes a top cylinder connecting sleeve body connected to the dispersive support seat, an electric servo cylinder provided in the top cylinder connecting sleeve body, a brick pressing table provided at the output end of the electric servo cylinder, and a linkage piston rod provided outside the top cylinder connecting sleeve body and connected to the linkage piston rod mounting hole seat.

4. The automated masonry structure of the improved refractory brick for a cement rotary kiln according to claim 2, wherein: The described mold rack rotating shaft structure includes an outer diameter positioning gear sleeve connected to the mold rack rotating shaft structure, an inner diameter adjusting planetary gear connected to the outer diameter positioning gear sleeve, and a sealing edge sleeve plate provided outside the outer diameter positioning gear sleeve.

5. The automated masonry structure of the improved refractory brick for a cement rotary kiln according to claim 2, characterized in that: The described mold rack unfolding frame body structure includes a central support main frame and folding brackets provided on both wings of the central support main frame. A folding cylinder assembly is provided between the folding brackets and the central support main frame, and a positioning pressing mold structure is provided at the outer edge inside the folding brackets and the central support main frame.

6. The automated masonry structure of the improved refractory brick for a cement rotary kiln according to claim 5, characterized in that: The described positioning pressing mold structure includes a set of brick pressing cylinders composed of 2 - 3 brick pressing cylinders provided between the folding brackets and the central support main frame, and 16 + 1 sets of brick pressing cylinder groups are provided between the folding brackets and the central support main frame. A set of brick pressing cylinder groups pushes the current set of refractory bricks to the masonry position; and each cylinder can be controlled individually or in combination.

7. The automated masonry structure of the improved refractory brick for a cement rotary kiln according to claim 6, characterized in that: The described brick pressing cylinder includes a guide post brick pressing cylinder, a top pressing plate provided at the upper part of the guide post brick pressing cylinder, and a wear-resistant layer provided at the upper part of the top pressing plate.

Images