Kiln door structure of rotary cement kiln cylinder
The rotary kiln door structure addresses inefficiencies in existing designs by using a single-bolt fastening mechanism to securely close the door, enhancing operational efficiency and leak prevention.
Patent Information
- Application Number
- CN202422077479.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The opening and closing process of existing cement rotary kiln barrel kiln doors is time-consuming and labor-intensive, and it is prone to leakage of dust, especially the bolts and nuts are rusted and dead, or the pressure points are small, resulting in inconvenience in operation and leakage of dust.
A kiln door structure is designed, including the edge of the kiln door, the hinged cover body connecting seat, the kiln door cover, the door body locking structure and locking block. The kiln door cover is fixed by locking the pin body, eliminating the crane lifting, and using a set of bolts and nuts to tighten to avoid dust leakage.
It realizes rapid fixing and sealing of kiln door covers, saves time and effort, avoids crane lifting time and dust leakage, and makes operation more convenient and efficient.
Smart Images
Figure CN223106643U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of the cylinder body of a cement rotary kiln, in particular to a kiln door structure of the cylinder body of a cement rotary kiln. Background Art
[0002] There are two manholes on the cylinder body of a cement rotary kiln, and the manholes are closed during production. When stopping the kiln for overhauling the lining refractory material, the manholes are opened, and after the refractory material is removed, it is removed through the manholes. As shown in the figure:
[0003] There are two manholes on the cylinder body of a cement rotary kiln, and the manholes are closed during production. When stopping the kiln for overhauling the lining refractory material, the manholes are opened, and after the refractory material is removed, it is removed through the manholes. Currently, the main forms of closing the kiln door are as follows: the first one is as Figure 1 shown: In this form of closing the kiln door: First, a 5-mm-thick heat-resistant cardboard is padded on the upper edge of the kiln door, and then the kiln door cover is covered and connected with bolts and nuts. The nuts are tightened to seal. The disadvantages of this method are as follows: For 8 sets of bolts and nuts, it is time-consuming and laborious to tighten and unscrew them. Often, due to the bolts and nuts rusting and getting stuck, they cannot be unscrewed and only can be cut off. It takes about 2 - 4 hours for two employees to open and close a kiln door. At the same time, a crane is also needed to cooperate for 1 hour to lift the kiln door cover up or down.
[0004] The main form of closing the door is the second one as Figure 2 shown: In this form of closing the kiln door: First, a 5-mm-thick heat-resistant cardboard is padded on the upper edge of the kiln door, the kiln door cover is covered, and a pressing rod is connected with bolts and nuts. The nuts are tightened to seal. Compared with the first method, although this method reduces 4 sets of bolts and nuts and saves a little manpower, due to fewer pressure points, sometimes ash leakage occurs at the joint between the kiln door cover and the upper edge of the kiln door after the cement rotary kiln starts production. Content of the Utility Model
[0005] The purpose of the utility model is to provide a kiln door structure of the cylinder body of a cement rotary kiln to solve the problem that it is easy to open and close the kiln door of the cylinder body of a cement rotary kiln.
[0006] The technical solution adopted by the utility model to solve its technical problems is: A kiln door structure of the cylinder body of a cement rotary kiln includes the cylinder body of a cement rotary kiln, multiple manholes arranged on the cylinder body of the cement rotary kiln, and a kiln door body structure arranged above the manholes. The kiln door body structure includes a kiln door upper edge structure arranged above the manholes, a hinged cover connection seat arranged above the kiln door upper edge structure, a kiln door cover structure connected with the hinged cover connection seat, and a door body lock structure arranged above the cylinder body of the cement rotary kiln and equidistantly arranged with the kiln door cover structure. The lock holes in the door body lock structure and the lock holes in the kiln door cover structure are symmetrically arranged after being flipped.
[0007] The kiln door cover structure includes a kiln door body arranged on one side of the hinged cover body connecting seat, the kiln door body matches the shape of the kiln door edge structure, an upper locking block is arranged on one side of the kiln door body, the upper locking block matches the lower locking block structure arranged on one side of the kiln door edge structure, and a locking pin body is arranged between the upper locking block and the lower locking block, and a lower extension blocking body adapted to the kiln door edge structure is provided at the lower part of the kiln door body.
[0008] The door lock structure is a door lock block in the shape of an "X" and a locking hole is arranged in the door lock block.
[0009] The kiln door edge structure is circular.
[0010] The beneficial effects of the utility model are as follows: the kiln door structure and the kiln door cover can be fixed on the kiln body, and no crane is needed to lift them up and down. The working time of engineering vehicles is saved. Secondly, through the design of the kiln door edge and the kiln door cover edge, only one set of bolts and nuts are needed to tighten them and no ash will leak during production. The design of this kiln door cover makes up for the shortcomings of the first and second kiln door covers, saving time and effort and being easy to operate.
[0011] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the closed structure of the first type of kiln door.
[0013] Figure 2 This is a schematic diagram of the second type of kiln door's closed structure.
[0014] Figure 3 It is a schematic diagram of the structure of the utility model.
[0015] Figure 4 for Figure 3 Stereoscopic diagram.
[0016] Figure 5 It is a schematic diagram of the structure of the kiln door cover of the utility model.
[0017] Figure 6 A schematic structural diagram of a kiln door edge structure of the present invention.
[0018] Figure 7 Demonstration diagram of opening and closing of the utility model.
[0019] In the figure: 1. Cement rotary kiln cylinder, 2. Manhole door, 3. Kiln door edge structure, 4. Hinged cover body connecting seat, 5. Kiln door body, 6. Upper locking block, 7. Lower locking block, 8. Locking pin body, 9. Door body locking block, 10. Locking hole, 11. Lower extension plugging body, 12. Pressing rod. DETAILED DESCRIPTION
[0020] 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 utility model 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, 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 utility model can be understood according to specific circumstances.
[0022] The main forms of closing the kiln door are the first type as Figure 1 shown: In this form of closing the kiln door: First, a 5-mm-thick heat-resistant cardboard is padded on the upper edge of the kiln door, and then the kiln door cover is covered and connected with bolts and nuts. The nuts are tightened to seal. The disadvantage of this method is that for 8 sets of bolts and nuts, it is time-consuming and laborious to tighten and unscrew. Often, due to the bolts and nuts rusting and jamming, they cannot be unscrewed and only can be cut off. It takes about 2 - 4 hours for two employees to open and close a kiln door. At the same time, a crane is also needed to cooperate for 1 hour to lift the kiln door cover up or down.
[0023] The main forms of closing the door are the second type as Figure 2 shown: In this form of closing the kiln door: First, a 5-mm-thick heat-resistant cardboard is padded on the upper edge of the kiln door, the kiln door cover is covered, and the pressing rod 12 is connected with bolts and nuts. The nuts are tightened to seal. Compared with the first method, although this method reduces 4 sets of bolts and nuts and saves a little manpower, due to fewer pressure points, sometimes ash leakage occurs at the joint between the kiln door cover and the upper edge of the kiln door after the rotary kiln starts production.
[0024] Example 1, as Figures 4-7As shown in the figure, a kiln door structure for a cement rotary kiln cylinder body includes a cement rotary kiln cylinder body 1, a plurality of manholes provided on the cement rotary kiln cylinder body 2, and a kiln door body structure provided above the manholes. The kiln door body structure includes a kiln door edge structure 3 provided above the manhole, a hinge cover connection seat 4 provided above the kiln door edge structure, a kiln door cover structure connected to the hinge cover connection seat, and a door body lock structure provided on the upper part of the cement rotary kiln cylinder body and arranged at an equal distance from the kiln door cover structure. The kiln door edge structure is circular.
[0025] The kiln door cover structure includes a kiln door body 5 provided on one side of the hinge cover connection seat 4. The kiln door body 5 matches the shape of the kiln door edge structure. An upper locking block 6 is provided on one side of the kiln door body. The upper locking block matches the structure of a lower locking block 7 provided on one side of the kiln door edge structure, and a locking pin body 8 is provided between the upper locking block and the lower locking block. A lower extension sealing body 11 adapted to the kiln door edge structure is provided at the lower part of the kiln door body.
[0026] The door body lock structure includes a door body lock block 9 in a shape of a capital "J" and a locking hole 10 provided in the door body lock block.
[0027] The locking hole 10 is symmetrically arranged with the lock hole of the upper locking block 6 after flipping.
[0028] For this kiln door structure, the kiln door cover can be fixed on the kiln cylinder body without the need for a crane to lift it up and down. This saves the working time of engineering vehicles. Secondly, through the design of the kiln door edge and the kiln door cover edge, only one set of bolts and nuts is needed to clamp it, and there will be no ash leakage during production. The design of this kiln door cover makes up for the deficiencies of the first and second types of kiln door covers, saving time and effort and being convenient to operate.
[0029] 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 skill 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.
[0030] Parts not involved in the present invention are the same as or can be implemented by using the prior art.
Claims
1. A kiln door structure for a cement rotary kiln cylinder, comprising a cement rotary kiln cylinder, a plurality of manholes provided in the cement rotary kiln cylinder, and a kiln door body structure provided above the manholes, characterized in that: The kiln door structure includes a kiln door edge structure arranged on the upper part of the manhole door, a hinged cover body connecting seat arranged on the upper part of the kiln door edge structure, a kiln door cover structure connected to the hinged cover body connecting seat, and a door body locking structure arranged on the upper part of the cement rotary kiln cylinder and equidistant from the kiln door cover structure. The locking hole in the door body locking structure and the locking hole in the kiln door cover structure are symmetrically arranged after being flipped.
2. The kiln door structure of the cement rotary kiln cylinder as described in claim 1, wherein: The kiln door cover structure includes a kiln door body arranged on one side of the hinged cover body connecting seat, the kiln door body matches the shape of the kiln door edge structure, an upper locking block is arranged on one side of the kiln door body, the upper locking block matches the lower locking block structure arranged on one side of the kiln door edge structure, and a locking pin body is arranged between the upper locking block and the lower locking block, and a lower extension blocking body adapted to the kiln door edge structure is provided at the lower part of the kiln door body.
3. The kiln door structure of the cement rotary kiln cylinder as described in claim 1 is characterized in that: The door lock structure is a door lock block in the shape of an "X" and a locking hole is arranged in the door lock block.
4. The kiln door structure of the cement rotary kiln cylinder as described in claim 1 is characterized in that: The kiln door edge structure is circular.