A decomposition furnace

Abstract

The application belongs to the technical field of cement production device, and particularly relates to a decomposing furnace, which comprises a furnace body, a wind pipe connected to the furnace body, a coal supply connecting pipe, a material supply connecting pipe and a rotary kiln connecting pipe, the coal supply connecting pipe, the material supply connecting pipe and the rotary kiln connecting pipe are of the same structure; the coal supply connecting pipe comprises a first connecting pipe, a second connecting pipe and a third connecting pipe connected to the furnace body, the end portions of the first connecting pipe and the second connecting pipe close to each other are both arranged to be inclined, so that a conical gap with the same structure as the third connecting pipe is formed between the first connecting pipe and the second connecting pipe; the coal supply connecting pipe further comprises a first locking mechanism for connecting and locking the third connecting pipe with the first connecting pipe and a second locking mechanism for connecting and locking the third connecting pipe with the second connecting pipe. The application is used for reducing the precision requirement of the reserved size of the pipeline.

Description

Technical Field

[0001] This invention belongs to the technical field of cement production equipment, and specifically relates to a decomposition furnace. Background Technology

[0002] Based on their working principle, decomposers can be classified into several types, including swirl type, jet type, turbulent type, vortex combustion type, and fluidized bed type. Decomposers are important pretreatment equipment in cement production, used to decompose carbonates into calcium oxide and carbon dioxide.

[0003] In cement production plants, the decomposition furnace is usually connected to the rotary kiln, fuel tank, and raw material tank via pipelines. The pipelines between the decomposition furnace and the rotary kiln, fuel tank, and raw material tank are mostly rigid. If the reserved pipeline is too long or too short during installation, it will cause trouble that installation cannot be completed and rework is required. The dimensional accuracy requirements of the pipeline are too high, which is not conducive to the efficient installation of the decomposition furnace. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a decomposition furnace, comprising a multi-segment connecting pipe, wherein at least one segment of the connecting pipe is tapered, and the tapered end is connected to the other segments via two inclined end faces, thereby reducing the required reserved pipe size when connecting the connecting pipe to other equipment.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: a decomposition furnace, comprising a furnace body and an air duct, a coal supply connection pipe, a material supply connection pipe, and a rotary kiln connection pipe connected to the furnace body, wherein the coal supply connection pipe, the material supply connection pipe, and the rotary kiln connection pipe have identical structures; the coal supply connection pipe includes a first connection pipe, a second connection pipe, and a third connection pipe connected to the furnace body, wherein the ends of the first connection pipe and the second connection pipe that are close to each other are inclined, thereby forming a conical notch between the first connection pipe and the second connection pipe with the same structure as the third connection pipe; the coal supply connection pipe further includes a first locking mechanism for connecting and locking the third connection pipe to the first connection pipe and a second locking mechanism for connecting and locking the third connection pipe to the second connection pipe; the first locking mechanism includes a first support member disposed on the side wall of the first connection pipe, a first pressing member slidably connected to the first support member, and a first locking bolt connected to the first support member and used to drive the first pressing member to move toward the first connection pipe; the second locking mechanism has the same structure as the first locking mechanism and is symmetrically distributed.

[0006] Preferably, the first clamping member has symmetrically provided first limiting grooves on its opposite side walls, and the first clamping member is connected to the first sliding groove provided on the first support member through the location of the first limiting groove, and the first sliding groove extends radially along the first connecting pipe.

[0007] Preferably, the first locking bolt passes through the end of the first support member away from the first connecting pipe and extends into the first groove, and the end of the first locking bolt extending into the first groove is rotatably connected to the first clamping member.

[0008] Preferably, a first pressing block is provided at the end of the first pressing member near the third connecting pipe and at the side near the third connecting pipe, and the first pressing block abuts against the third connecting pipe when the first pressing member presses the third connecting pipe.

[0009] Preferably, the first clamping block has an arc-shaped groove on its side near the third connecting pipe.

[0010] Preferably, the circular groove is provided with a frosted surface.

[0011] Preferably, the coal supply connecting pipe is further provided with a first guide plate connected to the first connecting pipe, a first guide groove provided on the first guide plate, and a first bent plate connected to the third connecting pipe and slidably connected to the first guide groove.

[0012] Preferably, the first connecting pipe has a first adjusting groove with a "convex" cross-section on its side wall, and the first support member is slidably connected in the first adjusting groove.

[0013] Preferably, a first elastic element is provided in the first adjustment groove to elastically support the first support element as it tends to move toward the third connecting pipe.

[0014] Preferably, the first elastic element is a compression spring.

[0015] The beneficial effects of adopting the technical solution of this invention are as follows:

[0016] The connecting pipes on the furnace body of this invention are multi-segmented, including a first connecting pipe, a second connecting pipe, and a third connecting pipe. The ends of the first and second connecting pipes that are close to each other are inclined, so that the first and second connecting pipes are symmetrically arranged and a conical notch is left between them. The third connecting pipe has the same shape as the conical notch. The third connecting pipe is placed within the conical notch to achieve communication between the first, second, and third connecting pipes. The conical shape of the third connecting pipe makes it easier to connect between the first and second connecting pipes. When the notch is small, the third connecting pipe is offset towards the end with the larger conical notch, and when the notch is large... The third connecting pipe is offset towards the end with the smaller tapered notch, which reduces the accuracy requirements of the pipe dimensions without affecting the connection and sealing of the connecting pipe. At the same time, the first and third connecting pipes, as well as the second and third connecting pipes, are connected by locking mechanisms. The locking mechanism includes a support, a clamping member slidably connected to the support, and a locking bolt connected to the support and acting on the clamping member. When the third connecting pipe is connected between the first and second connecting pipes, the locking bolt drives the clamping member to move, and the clamping member presses the third connecting pipe against the end with the smaller tapered notch to achieve the connection between the third connecting pipe and the first and second connecting pipes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an embodiment of a decomposition furnace;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 A schematic diagram of a locking mechanism for an embodiment of a decomposition furnace;

[0020] Figure 4 This is a schematic diagram of a guide assembly for an embodiment of a decomposition furnace.

[0021] in, Figure 1-4 In the middle, 1-furnace body, 2-air duct, 3-feeding connection pipe, 4-rotary kiln connection pipe, 5-coal supply connection pipe, 51-first connection pipe, 511-first adjusting groove, 512-first elastic element, 52-second connection pipe, 521-second adjusting groove, 522-second elastic element, 53-third connection pipe, 6-first locking mechanism, 61-first support member, 611-first sliding groove, 62-first locking bolt, 63-first pressing member, 631-first limiting recess, 632-first pressing block, 6321-arc groove, 7-second locking mechanism, 71-second support member, 72-second locking bolt, 73-second pressing member, 8-guide assembly, 81-first guide plate, 811-first guide groove, 82-first bending plate. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments, and do not limit the scope of the present invention.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The specific implementation method is as follows:

[0026] Example 1, as Figure 1-4 As shown, a decomposition furnace includes a furnace body 1, an air duct 2, a feeding connection pipe 3, a coal supply connection pipe 5, and a rotary kiln connection pipe 4. The air duct 2, feeding connection pipe 3, and coal supply connection pipe 5 are connected to the furnace body 1, and one or more of each can be installed. A rotary kiln connection pipe 4 is installed at the bottom of the furnace body 1 for connecting to a rotary kiln.

[0027] More specifically, the material supply connection pipe 3, the coal supply connection pipe 5, and the rotary kiln connection pipe 4 have the same structure, but their diameters and inner diameters are different.

[0028] It should be noted that the structure of the connecting pipe in the following embodiments is illustrated using the coal supply connecting pipe as an example.

[0029] The coal supply connection pipe 5 includes a first connection pipe 51, a second connection pipe 52, and a third connection pipe 53. The first connection pipe 51 is connected to the furnace body 1 and communicates with the interior of the furnace body 1. One end of the third connection pipe 53 is connected to the first connection pipe 51, and the other end is connected to the second connection pipe 52. More specifically, the end of the first connection pipe 51 away from the furnace body 1 is inclined downwards in the direction away from the furnace body 1. The end of the second connection pipe 52 near the furnace body 1 is inclined downwards in the direction near the furnace body 1. Based on this, when the first connection pipe 51 and the second connection pipe 52 are coaxial, a conical notch that is larger at the top and smaller at the bottom is formed between them. More specifically, both ends of the third connection pipe 53 are inclined, with the top being larger and the bottom smaller, and the shape is the same as the conical notch. Based on this, when the first connection pipe 51, the second connection pipe 52, and the third connection pipe 53 are connected, the conical notch, with its larger top and smaller bottom, facilitates the insertion of the third connection pipe 53.

[0030] When the first connecting pipe 51, the second connecting pipe 52, and the third connecting pipe 53 are connected, the first connecting pipe 51 and the third connecting pipe 53 are connected by a first locking mechanism 6, and the second connecting pipe 52 and the third connecting pipe 53 are connected by a second locking mechanism 7; the first locking mechanism 6 and the second locking mechanism 7 have the same structure. Specifically, the first locking mechanism 6 includes a first support member 61, a first clamping member 63, and a first locking bolt 62. The first support member 61 is connected to the end of the top surface of the first connecting pipe 51 away from the furnace body 1. The first clamping member 63 is slidably connected to the first support member 61, and its end extends above the conical notch. The first locking bolt 62 is connected to the first support member 61 and can press down on the first clamping member 63 during the tightening process, so that the first clamping member 63 presses the third connecting pipe 53 down into the conical notch; at the same time, due to the action of the second locking bolt 72 pressing down on the second clamping member 73, the second clamping member 73 presses down along the second support member 71 from the other side into the conical notch; the first locking mechanism 6 and the second locking mechanism 7 cooperate to press the third connecting pipe 53 into the conical notch, realizing the connection between the first connecting pipe 51, the third connecting pipe 53 and the second connecting pipe 52.

[0031] In this embodiment, the third connecting pipe 53 is connected and locked to the first connecting pipe 51 and the second connecting pipe 53 by the first locking mechanism 6 and the second locking mechanism 7. A pipeline is connected to the end of the second connecting pipe 52 away from the third connecting pipe 53, and connected to the coal supply device through the pipeline. In existing decomposition furnaces, when connecting pipelines, since the end faces of the pipelines are all vertical cut surfaces, if the reserved pipeline is too long, the pipeline will get stuck at the gap and cannot be inserted; if the reserved pipeline is too short, the gap will have a gap that cannot be sealed, resulting in a very precise requirement for the reserved length of the pipeline. In this decomposition furnace, the third connecting pipe 53 has a conical structure with both ends inclined and the top larger than the bottom. On the one hand, the third connecting pipe 53 can be inserted into the conical notch more conveniently; on the other hand, regardless of whether the pipeline is too long or too short, the length of the connecting pipes 3, 4, and 5 on the furnace body 1 can be adjusted to a certain extent by shifting the third connecting pipe 53 downward or upward within the conical notch (because the closing of the connecting pipe has a certain thickness, the inside of the connecting pipe is still closed to the outside). This ensures a smooth connection between the connecting pipes 3, 4, and 5 and the pipeline, and reduces the requirements for the accuracy of the pipeline length.

[0032] Furthermore, a first sliding groove 611 is provided on the first support member 61. The first sliding groove 611 extends radially up and down along the first connecting pipe 51, with the upper and lower ends closed and the left and right sides open. A first limiting groove 631 is provided on the front and rear sides of the first clamping member 63. The two first limiting grooves 631 are symmetrically arranged. In this way, the first clamping member 63 is connected to the first sliding groove 611 through the portion of the first limiting groove 631, realizing a sliding connection and preventing the first clamping member 63 from coming out of the first sliding groove 611.

[0033] Furthermore, the first locking bolt 62 passes downward from the upper end of the first support member 61 and extends into the first sliding groove 611, with its lower end capable of relative rotation with the first clamping member 63. Specifically, the first locking bolt 62 and the first clamping member 63 can be connected via a bearing assembly or through direct contact, with the primary principle being that the first locking bolt 62 can rotate relative to the first clamping member 63. Based on this, when the first locking bolt 62 is turned downward, the first locking bolt 62 presses downward against the first clamping member 63, causing the first clamping member 63 to press downward against the third connecting pipe 53.

[0034] Furthermore, a first pressing block 632 is also provided on the lower side of the first pressing member 63 near the end of the third connecting pipe 53. The first pressing block 632 protrudes downward relative to the first pressing member 63. The first pressing member 63 presses the third connecting pipe 53 with the first pressing block 632, and can press the third connecting pipe 53 down to below the first connecting pipe 51, thereby realizing the adjustment of the upward and downward offset of the third connecting pipe 53.

[0035] Furthermore, an arc-shaped groove 6321 is provided on the lower side of the first clamping block 632 to ensure contact with the surface of the third connecting pipe 53.

[0036] Furthermore, a frosted surface is provided inside the arc groove 6321 to increase friction and prevent slippage.

[0037] Furthermore, a guide assembly 8, consisting of a first guide plate 81 and a first bending plate 82, is also provided on the coal supply connecting pipe 5. One or two guide assemblies 8 can be provided. Specifically, the first guide plate 81 is connected to the first connecting pipe 51, and the first bending plate 82 is connected to the third connecting pipe 53. A first guide groove 811 is provided on the first guide plate 81. The first bending plate 82 bends towards the first guide plate 81, and its bent portion slides precisely within the first guide groove 811 when the third connecting pipe 53 is connected to the conical notch. This prevents misalignment of the third connecting pipe 53 during connection.

[0038] In this embodiment, two guide components 8 are provided, respectively located on the front and rear sides of the coal supply connection pipe 5.

[0039] In other embodiments, a guide component is also provided between the third connecting pipe and the second connecting pipe to ensure the reliability of the connection between the first connecting pipe, the second connecting pipe and the third connecting pipe. Other structures will not be described in detail here.

[0040] Furthermore, a first adjusting groove 511 is provided at the top of the first connecting pipe 53, and the first adjusting groove 511 extends along the length direction of the first connecting pipe 53. The first adjusting groove 511 has a "convex" cross-section, which allows the first support member 61 with a "convex" lower end to slide, so as to prevent the first support member 63, which extends above the conical notch, from affecting the insertion of the third connecting pipe 53 into the conical notch.

[0041] Correspondingly, a second adjustment groove 521 is provided at the top of the second connecting pipe 52. The second adjustment groove 521 extends along the length of the second connecting pipe 52, and the second support member 71 is connected in the second adjustment groove 521.

[0042] Furthermore, a first elastic element 512 is provided in the first adjusting groove 511. The first elastic element 512 is located on the side of the first support member 61 away from the third connecting pipe 53, and is used to elastically support the first support member 51 as it tends to move toward the third connecting pipe 53. Correspondingly, a second elastic element 522 is provided in the second adjusting groove 521. The second elastic element 522 is located on the side of the second support member 71 away from the third connecting pipe 53.

[0043] Based on this, before the third connecting tube 53 is inserted into the conical notch, the first support member 61 and the second support member 71 are pulled to both sides. After the third connecting tube 53 is inserted, the first support member 61 and the second support member 71 automatically reset under the action of the first elastic member 512 and the second elastic member 522, which is convenient and flexible.

[0044] Furthermore, both the first elastic element 512 and the second elastic element 522 are compression springs.

[0045] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A decomposition furnace, comprising a furnace body and air ducts, coal supply pipes, material supply pipes, and rotary kiln connection pipes connected to the furnace body, characterized in that, The coal supply connecting pipe, the material supply connecting pipe, and the rotary kiln connecting pipe all have the same structure. The coal supply connecting pipe includes a first connecting pipe, a second connecting pipe, and a third connecting pipe connecting the first connecting pipe and the second connecting pipe to the furnace body. The ends of the first connecting pipe and the second connecting pipe that are close to each other are inclined, so that a conical notch with the same structure as the third connecting pipe is formed between the first connecting pipe and the second connecting pipe. The coal supply connecting pipe also includes a first locking mechanism for connecting and locking the third connecting pipe to the first connecting pipe and a second locking mechanism for connecting and locking the third connecting pipe to the second connecting pipe. The first locking mechanism includes a first support member disposed on the side wall of the first connecting pipe, a first pressing member slidably connected to the first support member, and a first locking bolt connected to the first support member and used to drive the first pressing member to move toward the first connecting pipe. The second locking mechanism has the same structure as the first locking mechanism and is symmetrically distributed.

2. The decomposition furnace according to claim 1, characterized in that, The first clamping member has symmetrically arranged first limiting grooves on its opposite two side walls. The first clamping member is connected to the first sliding groove provided on the first support member through the location of the first limiting groove. The first sliding groove extends radially along the first connecting pipe.

3. A decomposition furnace according to claim 2, characterized in that, The first locking bolt passes through the end of the first support member away from the first connecting pipe and extends into the first sliding groove. The end of the first locking bolt extending into the first sliding groove is rotatably connected to the first clamping member.

4. A decomposition furnace according to claim 3, characterized in that, The first clamping member has a first clamping block at its end near the third connecting pipe and at its side near the third connecting pipe. When the first clamping member clamps the third connecting pipe, the first clamping block abuts against the third connecting pipe.

5. A decomposition furnace according to claim 4, characterized in that, The first clamping block has an arc-shaped groove on its side near the third connecting pipe.

6. A decomposition furnace according to claim 5, characterized in that, The circular groove has a frosted surface.

7. A decomposition furnace according to any one of claims 1-6, characterized in that, The coal supply connecting pipe is also provided with a first guide plate connected to the first connecting pipe, a first guide groove provided on the first guide plate, and a first bent plate connected to the third connecting pipe and slidably connected to the first guide groove.

8. A decomposition furnace according to any one of claims 1-6, characterized in that, The first connecting pipe has a first adjusting groove with a "convex" cross-section on its side wall, and the first support member is slidably connected in the first adjusting groove.

9. A decomposition furnace according to claim 8, characterized in that, The first adjustment groove is provided with a first elastic element, which is used to elastically support the first support element to have a tendency to move toward the third connecting pipe.

10. A decomposition furnace according to claim 9, characterized in that, The first elastic element is a compression spring.

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