Cement kiln flue gas catalyst turnover device

Abstract

The utility model relates to the technical field of flue gas treatment, in particular to a cement kiln flue gas catalyst turnover device. Comprising an overturning frame and a supporting frame. The overturning frame is rotatably connected with the supporting frame; the overturning frame comprises a bearing frame; the bearing frames are mutually connected, and included angles are formed between the bearing frames; the included angle between the bearing frames corresponds to the catalyst module, so that when the catalyst module is placed on one bearing frame, the other bearing frame is attached to the catalyst module; when one bearing frame is in contact with the ground and rotates to the other bearing frame in contact with the ground, the rotation angle of the turnover frame is 90 degrees. In the prior art, a catalyst module needs to be overturned before hoisting, and the catalyst module is heavy, inconvenient to operate and easy to damage. Compared with the prior art, the catalyst overturning device has the advantages that overturning operation can be facilitated, and on the other hand, the catalyst can be overturned in place, so that the problem that the catalyst is damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a turnover device for a cement kiln flue gas catalyst. Background Art

[0002] A cement kiln is one of the important devices in the cement production process, mainly used for sintering cement raw materials into cement clinker through high-temperature sintering reactions. Specifically, after the cement raw materials are put into the cement kiln, the cement raw materials go through multiple processes such as multi-stage heating, reaction, decomposition, and firing, and finally produce cement clinker. During the sintering process, a large amount of flue gas is generated. Affected by the process and process, the flue gas contains a large amount of nitrogen oxides.

[0003] In order to avoid adverse effects on the environment, the flue gas generated by the cement kiln needs to be denitrified. At present, SCR is mainly used for flue gas denitrification treatment, which requires corresponding catalyst modules. The existing catalyst module is a cuboid-shaped structure, with a metal shell on the outside and corresponding catalysts assembled inside. Since there is only a grille at one end of the catalyst module and no grille in the flue gas inlet direction, the catalyst is in a bare state. This results in the placement state of the catalyst module during transportation / warehousing being different from the state during actual assembly. Therefore, after the catalyst module is transported by a forklift, the catalyst module needs to be turned 90° so that the airflow arrow on the catalyst module points downward before it can be lifted by a crane for assembly. However, the self-weight of the catalyst module is relatively large, about several hundred kilograms, resulting in inconvenient turning operations. At the same time, if the turning is not in place, it is easy to cause damage to the catalyst. In subsequent denitrification processes, problems such as large flue gas erosion and rapid catalyst failure are likely to occur. Summary of the Utility Model

[0004] Aiming at the technical problems of the prior art, the utility model provides a turnover device for a cement kiln flue gas catalyst.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] A turnover device for a cement kiln flue gas catalyst, comprising: a turnover frame and a support frame; the turnover frame is rotatably connected to the support frame; the turnover frame includes a bearing frame; the bearing frames are connected to each other, and an included angle is provided between the bearing frames; the included angle between the bearing frames corresponds to the catalyst module, so that when the catalyst module is placed on one of the bearing frames, the other bearing frame fits with the catalyst module; when the turnover frame rotates from one bearing frame touching the ground to the other bearing frame touching the ground, the rotation angle of the turnover frame is 90°.

[0007] In practical applications, it is default that one of the carrying frames is in a state of touching the ground, and the catalyst module is placed on this carrying frame by a forklift. After being stably placed, one side of the catalyst module is in contact with the other carrying frame. At this time, rotate the turning frame so that the carrying frame is lifted off the ground until the other carrying frame touches the ground. When the other carrying frame touches the ground, restricted by the two carrying frames, the turning frame flips 90°. Thus, the flipping of the catalyst is completed. In summary, by using the present utility model, on the one hand, the flipping operation of the catalyst module can be effectively facilitated, and on the other hand, the flipping angle is limited to 90°, so that the flipping is in place, avoiding the problem of catalyst damage.

[0008] Furthermore, the turning frame further includes ground-touching rods; the number of the ground-touching rods is two groups; the ground-touching rods correspond to the carrying frames one by one; one end of the ground-touching rod is connected to the carrying frame, and the other end can touch the ground to limit the rotation angle of the turning frame to 90°.

[0009] Furthermore, the carrying frame includes carrying rods and reinforcing rods; the carrying rods are connected to the reinforcing rods to enclose a closed rectangle.

[0010] Furthermore, the reinforcing rods are parallel to each other; the number of the carrying rods is multiple; the carrying rods are arranged between the reinforcing rods; the carrying rods are arranged from one end of the reinforcing rod to the other end; the carrying rods protrude from the surface of the reinforcing rod.

[0011] Furthermore, grooves are formed on the reinforcing rods.

[0012] Furthermore, the turning frame further includes a connection structure; the connection structure is arranged between the carrying frames; the connection structure is connected to the carrying frames; the connection structure is rotatably connected to the support frame.

[0013] Furthermore, the connection structure includes a first connecting rod and a second connecting rod. The two ends of the first connecting rod are respectively connected to the carrying frames; one end of the second connecting rod is connected to the first connecting rod, and the other end is connected to one of the carrying frames; the second connecting rod is rotatably connected to the support frame.

[0014] Furthermore, a connecting shaft is arranged on the second connecting rod; the connecting shaft passes through the rotating bearing on the support frame; the second connecting rod passes through the center of gravity of the catalyst module so that the center of gravity coincides with the connecting shaft.

[0015] Furthermore, pin sockets are arranged on both sides of the support frame; the pin sockets correspond to the turning frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : Overall structure diagram.

[0017] Figure 2 : Structure diagram of the support frame.

[0018] Figure 3: Structure diagram of the flipping frame.

[0019] Figure 4 : Schematic diagram of the states before and after flipping.

[0020] In the figure: 1. Flipping frame; 2. Support frame; 11. Loading frame; 12. Ground-touching rod; 13. Connection structure; 111. Loading rod; 112. Reinforcing rod; 131. First connecting rod; 132. Second connecting rod; 1321. Connecting shaft; 2. Support frame; 21. Pin socket. Detailed implementation manners

[0021] The following are specific embodiments of the present utility model and in combination with the accompanying drawings, the technical solutions of the present utility model are further described, but the present utility model is not limited to these embodiments.

[0022] A catalyst flipping device for cement kiln flue gas includes: a flipping frame 1 and a support frame 2. The flipping frame 1 includes a loading frame 11, a ground-touching rod 12, and a connection structure 13. Among them, the loading frame 11 includes loading rods 111 and reinforcing rods 112. Grooves corresponding to the forklift forks are formed on the reinforcing rods 112. The number of the reinforcing rods 112 is two, and the reinforcing rods 112 are parallel to each other. The loading rods 111 are arranged between the reinforcing rods 112. The end parts of the loading rods 111 are respectively fixedly connected to the two reinforcing rods 112, so as to form a rectangular frame structure in combination with the reinforcing rods 112. The number of the loading rods 111 is at least two. If the number of the loading rods 111 is two, the two loading rods 111 are respectively located at the two ends of the reinforcing rods 112. If the number of the loading rods 111 is multiple, the loading rods 111 are arranged from one end of the reinforcing rods 112 to the other end. At the same time, the loading rods 111 protrude from the surface of the reinforcing rods 112.

[0023] On the other hand, the number of the loading frames 11 is two. Specifically, as can be seen from the accompanying drawings, the number of the loading rods 111 of one loading frame 11 is more, and the number of the loading rods 111 of the other loading frame 11 is less. At the same time, the loading rods 111 are fixed together between the two loading frames 11, so as to fix the two loading frames 11 into a 90° right-angle structure. Thus, when the catalyst module is placed on one of the loading frames 11, the other loading frame 11 can be attached to the catalyst module. For the convenience of description, hereinafter, the loading frame 11 with more loading rods 111 is referred to as loading frame A, and the loading frame 11 with fewer loading rods 111 is referred to as loading frame B.

[0024] The ground-touching rod 12 is a cuboid-shaped structure, and the number of ground-touching rods 12 is two groups. The ground-touching rods 12 correspond to the bearing frames 11 one by one. The ground-touching rods 12 are perpendicular to the reinforcing rods 112. One end of the ground-touching rod 12 is fixedly connected to the reinforcing rod 112, and the other end can touch the ground. That is, when the bearing frame B is parallel to the ground, the corresponding ground-touching rod 12 touches the ground. When the turnover frame 1 rotates to make the bearing frame A parallel to the ground, the corresponding ground-touching rod 12 touches the ground. At the same time, the length of the ground-touching rod 12 matches the rotation angle of the turnover frame 1 to limit the rotation angle of the turnover frame 1 to 90°. The specific length of the ground-touching rod 12 can be obtained by measurement and will not be elaborated here.

[0025] The connection structure 13 includes a first connecting rod 131 and a second connecting rod 132. Both ends of the first connecting rod 131 are fixedly connected to the two bearing frames 11 respectively. One end of the second connecting rod 132 is fixedly connected to the first connecting rod 131, and the other end is fixedly connected to the bearing frame B. At the same time, a connecting shaft 1321 is also provided on the second connecting rod 132. The second connecting rod 132 passes through the center of gravity of the catalyst module, so that the center of gravity coincides with the connecting shaft 1321.

[0026] The support frame 2 is a structure that can be stably placed on the ground. A rotating bearing corresponding to the connecting shaft 1321 is provided on the support frame 2. The connecting shaft 1321 passes through the rotating bearing, so that the turnover frame 1 is rotatably connected to the support frame 2. On the other hand, plug sockets 21 are provided on both sides of the support frame 2, and the plug sockets 21 correspond to the second connecting rod 132. Through holes matching the plug sockets 21 are provided on the second connecting rod 132.

[0027] In actual application, by default, the bearing frame A is in a state parallel to the ground. At the same time, a plug passes through the corresponding plug socket 21 and is inserted into the through hole on the second connecting rod 132 to fix the turnover frame 1 and the support frame 2 together. The catalyst module is placed on the bearing frame A by a forklift. Since the bearing rod 111 protrudes from the surface of the reinforcing rod 112, there is a certain space between the ground of the catalyst module and the reinforcing rod 112, which facilitates the forklift to withdraw the fork claws. At this time, one side of the catalyst module is in contact with the reinforcing rod 112 of the bearing frame B.

[0028] After the catalyst module is stably placed, the weight of the catalyst module is borne by the bearing frame B, and the bearing frame B is supported by the corresponding ground contact rod 12. At this time, the pin is pulled out from the pin seat 21. After the forklift removes the fork claws, the fork claws are inserted into the groove of the reinforcing rod 112. The forklift exerts force to turn the turning frame 1 to turn around the connecting shaft 1321. At the same time, a wrench can be assembled at the end of the connecting shaft 1321, and the operator holds the wrench to assist in turning the turning frame 1. A corresponding motor can also be assembled on the connecting shaft 1321, the motor is assembled on the support frame 2, and the output end of the motor is connected to the connecting shaft 1321, so that the motor drives the turning frame 1 to turn. As the turning frame 1 is gradually turned, finally, the ground contact rod 12 on the bearing frame A touches the ground. At this time, the bearing frame A is parallel to the ground. Limited by the ground contact rod 12, the turning angle of the turning frame 1 is 90°. The weight of the catalyst module is borne by the reinforcing rod 112 of the bearing frame A and supported by the corresponding ground contact rod 12. Thus, the turning of the catalyst module is completed, and the air flow arrow on the catalyst module is vertically downward. After the pin passes through another pin seat 21 and is inserted into the through hole on the second connecting rod 132 again, it can be lifted by a crane for assembly. In summary, by using the utility model, the turning of the catalyst module can be effectively assisted, thus facilitating the turning operation. At the same time, the turning angle of the turning frame 1 is effectively limited to 90°, so that the catalyst module can be turned in place.

[0029] On the other hand, since the center of gravity of the catalyst module coincides with the connecting shaft 1321, during the turning process of the turning frame 1, the turning frame 1 will not tilt, which helps to reduce the width of the support frame 2, and further helps to reduce the overall occupied space of the device.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the utility model. Those skilled in the art of the utility model can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

Claims

1. A cement kiln flue gas catalyst turning device, characterized in that: include: Turning frame (1), supporting frame (2); The turning frame (1) is rotatably connected to the supporting frame (2); The turning frame (1) comprises a carrying frame (11); The carrying frames (11) are connected to each other, and an angle is set between the carrying frames (11); The angle between the supporting frames (11) corresponds to the catalyst module, so that when the catalyst module is placed on one of the supporting frames (11), the other supporting frame (11) fits the catalyst module; When the flip frame (1) rotates from one of the supporting frames (11) touching the ground to the other supporting frame (11) touching the ground, the rotation angle of the flip frame (1) is 90°.

2. A cement kiln flue gas catalyst turning device according to claim 1, characterized in that: The overturning frame (1) also includes a ground contact rod (12); The number of the ground contact rods (12) is two groups; The ground contact rods (12) correspond to the supporting frames (11) one by one; One end of the ground contact rod (12) is connected to the supporting frame (11), and the other end can touch the ground to limit the rotation angle of the turnover frame (1) to 90°.

3. A cement kiln flue gas catalyst turning device according to any one of claims 1 to 2, characterized in that: The bearing frame (11) comprises a bearing rod (111) and a reinforcing rod (112); the bearing rod (111) and the reinforcing rod (112) are connected to form a closed rectangle.

4. A cement kiln flue gas catalyst turning device according to claim 3, characterized in that: The reinforcing rods (112) are parallel to each other; The number of the bearing rods (111) is multiple; The bearing rod (111) is arranged between the reinforcing rods (112); The bearing rod (111) is arranged from one end of the reinforcing rod (112) to the other end; The bearing rod (111) protrudes from the surface of the reinforcing rod (112).

5. The cement kiln flue gas catalyst turning device according to claim 3, characterized in that: The reinforcing rod (112) is provided with a groove.

6. The cement kiln flue gas catalyst turning device according to claim 1, characterized in that: The turning frame (1) further comprises a connecting structure (13); The connection structure (13) is arranged between the carrying frames (11); The connecting structure (13) is connected to the carrying frame (11); The connection structure (13) is rotatably connected to the support frame (2).

7. A cement kiln flue gas catalyst turning device according to claim 6, characterized in that: The connection structure (13) comprises a first connection rod (131) and a second connection rod (132); Both ends of the first connecting rod (131) are respectively connected to the carrying frame (11); One end of the second connecting rod (132) is connected to the first connecting rod (131), and the other end is connected to one of the carrying frames (11); The second connecting rod (132) is rotatably connected to the supporting frame (2).

8. The cement kiln flue gas catalyst turning device according to claim 7, characterized in that: The second connecting rod (132) is provided with a connecting shaft (1321); The connecting shaft (1321) passes through the rotating bearing on the supporting frame (2); The second connecting rod (132) passes through the center of gravity of the catalyst module so that the center of gravity coincides with the connecting shaft (1321).

9. The cement kiln flue gas catalyst turning device according to claim 1, characterized in that: Latch seats (21) are provided on both sides of the support frame (2); The latch seat (21) corresponds to the flip frame (1).

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