Anti-blocking device for cyclone cone part of cement kiln preheater

Abstract

The utility model relates to an anti-blocking device for a cyclone cone of a cement kiln preheater, and belongs to the technical field of cyclone preheaters. The cyclone cylinder comprises a cyclone cylinder body and a cyclone cylinder conical part which are distributed up and down; the anti-blocking device comprises an ash removal pipe, an air pressure measuring pipe, a fixed pipe and an anti-blocking rod; an ash removal pipe is arranged at the upper end of the side wall of the cyclone cone part, an air pressure measuring pipe is arranged on the side wall of the cyclone cone part, an upper layer of fixing pipes and a lower layer of fixing pipes are fixedly arranged at the middle height position of the outer wall of the cyclone cone part, and each layer of fixing pipes are symmetrically arranged on the two sides of the cyclone cone part. The same anti-blocking rod is inserted into the two symmetrical fixing pipes, and the fixing pipe on the upper layer is perpendicular to the fixing pipe on the lower layer. The problem that a conical part of an existing cyclone cylinder is prone to being blocked is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of cyclone preheaters, specifically relating to an anti-blocking device for the cone section of a cyclone preheater in a cement kiln. Background Technology

[0002] The cement kiln preheater is a crucial heat exchange device in the cement production process. Its main function is to preheat the raw materials using the high-temperature exhaust gas from the rotary kiln, ensuring that the raw materials are fully preheated and decomposed before entering the rotary kiln, thereby improving the efficiency and quality of cement production. The cyclone separator is a key component of the preheater. Its working principle utilizes high-speed rotating airflow to generate centrifugal force within the separator, achieving gas-solid separation.

[0003] However, in the actual operation of cement kiln preheaters, clogging is prone to occur in the conical section of the cyclone separator. This is mainly because the raw materials undergo a series of physical and chemical changes during preheating, such as moisture evaporation and carbonate decomposition. These changes increase the viscosity of the raw material particles, making them more likely to adhere to the inner wall of the cyclone separator conical section. Furthermore, uneven airflow velocity distribution within the cyclone separator and unreasonable particle size distribution of the raw materials can also exacerbate the clogging problem in the conical section. Once the cyclone separator conical section is clogged, it leads to increased resistance in the preheater, poor ventilation, and consequently affects the normal operation of the entire cement kiln system, reducing production efficiency and increasing energy consumption and production costs. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art by proposing an anti-clogging device for the cone section of a cement kiln preheater cyclone separator, thus solving the problem of easy clogging in the cone section of the cyclone separator.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0006] An anti-clogging device for the conical section of a cyclone separator in a cement kiln preheater is disclosed. The cyclone separator includes a cyclone body and a conical section distributed vertically. The anti-clogging device includes a cleaning pipe, an air pressure measuring pipe, a fixing pipe, and an anti-clogging rod. A cleaning pipe is installed at the upper end of the side wall of the conical section, and an air pressure measuring pipe is installed on the side wall of the conical section. Two layers of fixing pipes are fixedly installed at the middle height of the outer wall of the conical section. Each layer of fixing pipes is symmetrically arranged on both sides of the conical section. The same anti-clogging rod is inserted into the two symmetrical fixing pipes. The upper fixing pipe is perpendicular to the lower fixing pipe.

[0007] Furthermore, an air-material mixing inlet is provided on the upper outer side of the cyclone body, and the air-material mixing inlet is provided along the tangential direction of the cyclone body; an airflow outlet is provided at the center of the upper end of the cyclone body, and a material outlet is provided at the lower opening of the cyclone cone.

[0008] Further, the dust removal pipe is obliquely arranged, one end of the obliquely downward dust removal pipe is connected with the inside of the cone part of the cyclone barrel, and the other end of the obliquely upward dust removal pipe is connected with the air cannon.

[0009] Further, the air pressure measuring pipe is obliquely arranged, one end of the obliquely downward air pressure measuring pipe is connected with the inside of the cone part of the cyclone barrel, and the other end of the obliquely upward air pressure measuring pipe is connected with the pressure measuring device.

[0010] Further, the upper fixed pipes are arranged on the left and right sides of the cyclone barrel, a plurality of fixed pipes are arranged on each side along the front-rear direction, and one row of fixed pipes on the left side corresponds to one row of fixed pipes on the right side; the upper fixed pipes are horizontally arranged along the left-right direction.

[0011] Further, the lower fixed pipes are arranged on the front and rear sides of the cyclone barrel, a plurality of fixed pipes are arranged on each side along the left-right direction, and one row of fixed pipes on the front side corresponds to one row of fixed pipes on the rear side; the lower fixed pipes are horizontally arranged along the front-rear direction.

[0012] Further, one end of the fixed pipe is connected with the inside of the cone part of the cyclone barrel, and the other end of the fixed pipe is fixedly provided with a flange; one end of the anti-blocking rod is inserted into the opening at the outside of one of the fixed pipes, one end of the anti-blocking rod extends to the outside of the fixed pipe, the other end of the anti-blocking rod extends into the corresponding fixed pipe on the other side through the cone part of the cyclone barrel; the flange at one end of the anti-blocking rod extends to the outside of the fixed pipe, and the flange on the anti-blocking rod is fixedly connected with the flange on the fixed pipe through a circle of bolts and nuts; the flange on the fixed pipe on the other side is fixedly connected with the blocking plate through a circle of bolts and nuts.

[0013] Further, the dust removal pipe is arranged above the anti-blocking rod.

[0014] Further, the air pressure measuring pipe is arranged below the anti-blocking rod.

[0015] The utility model discloses relative to prior art's beneficial effect is as follows:

[0016] When the inside of the cyclone barrel is blocked, the upper end of the anti-blocking rod is accumulated with materials, and the excessive accumulation of the materials causes the blockage, the real-time pressure data are collected through the air pressure measuring pipe below the anti-blocking rod and the pressure measuring device outside, and are transmitted to the control system, if the pressure data reach the set value, the control system is controlled to open the air cannon to remove the materials accumulated on the anti-blocking rod through the dust removal pipe. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model makes further detailed description in connection with the drawings:

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is Figure 1 A-A section view in the middle;

[0020] Among them, 1 is cyclone cylinder body;2 is cyclone cylinder cone part;3 is dust cleaning pipe;4 is flange plate;5 is bolt;6 is air pressure measuring pipe;7 is fixed pipe;8 is anti-blocking rod;9 is gas material mixing inlet;10 is gas flow outlet;11 is material outlet. Specific implementation

[0021] In order to make the technical problem, technical scheme and beneficial effect that the utility model wants to solve more clear and clear, in connection with embodiment and drawing, the utility model is further detailedly explained.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.The technical scheme of the utility model is explained in detail below in connection with embodiment and drawing, but the protection scope is not limited by this.

[0022] As Figure 1 -2 shows, the utility model provides a kind of anti-blocking device for cement kiln preheater cyclone cylinder cone part.

[0023] The cyclone cylinder includes cyclone cylinder body 1 and cyclone cylinder cone part 2 distributed upwards and downwards, gas material mixing inlet 9 is provided on the outer side upper end of cyclone cylinder body 1, gas material mixing inlet 9 is arranged along the tangential direction of cyclone cylinder body 1, and the mixture of gas flow and material enters the inside of cyclone cylinder through gas material mixing inlet 9;Gas flow outlet 10 is provided at the upper end center of cyclone cylinder body 1, and material outlet 11 is provided at the lower end opening of cyclone cylinder cone part 2, after the mixture of gas flow and material is separated in the inside of cyclone cylinder, gas flow is output outward from the upper end gas flow outlet 10, and material is output outward from the lower end material outlet 11.

[0024] The anti-blocking device includes dust cleaning pipe 3, air pressure measuring pipe 6, fixed pipe 7 and anti-blocking rod 8.

[0025] One dust cleaning pipe 3 is provided on the side wall upper end of cyclone cylinder cone part 2, and the dust cleaning pipe 3 is inclinedly arranged, the inclined downward end of dust cleaning pipe 3 is connected with the inside of cyclone cylinder cone part 2, and the inclined upward end of dust cleaning pipe 3 is connected with air cannon.

[0026] An air pressure measuring pipe 6 is arranged on the side wall of the cyclone cone 2, the air pressure measuring pipe 6 is arranged obliquely, the obliquely downward end of the air pressure measuring pipe 6 is communicated with the inner side of the cyclone cone 2, and the obliquely upward end of the air pressure measuring pipe 6 is connected with a pressure measuring device.

[0027] Two layers of fixed pipes 7 are fixedly arranged at the middle height of the outer wall of the cyclone cone 2, each layer of fixed pipes 7 is symmetrically arranged on the two sides of the cyclone cone 2, the same anti-blocking rod 8 is inserted into the two symmetrically arranged fixed pipes 7, and the upper layer of fixed pipes 7 is perpendicular to the lower layer of fixed pipes 7.

[0028] The upper layer of fixed pipes 7 is arranged on the left and right sides of the cyclone, a plurality of fixed pipes 7 are arranged on each side, the plurality of fixed pipes 7 are arranged in the front-rear direction, and one row of fixed pipes 7 on the left side corresponds to one row of fixed pipes 7 on the right side.

[0029] The lower layer of fixed pipes 7 is arranged on the front and rear sides of the cyclone, a plurality of fixed pipes 7 are arranged on each side, the plurality of fixed pipes 7 are arranged in the left-right direction, and one row of fixed pipes 7 on the front side corresponds to one row of fixed pipes 7 on the rear side.

[0030] One end of the fixed pipe 7 is communicated with the inner side of the cyclone cone 2, and the other end of the fixed pipe 7 is fixedly provided with a flange plate 4. One end of the anti-blocking rod 8 is inserted into the opening of the outer end of the fixed pipe 7 on one side, one end of the anti-blocking rod 8 extends to the outside of the fixed pipe 7, the other end of the anti-blocking rod 8 penetrates through the cyclone cone 2 and extends into the corresponding fixed pipe 7 on the other side. A flange plate 4 is fixedly arranged on one end of the anti-blocking rod 8 extending to the outside of the fixed pipe 7, and the flange plate 4 on the anti-blocking rod 8 and the flange plate 4 on the fixed pipe 7 are fixedly connected through a circle of bolts 5 and nuts. The flange plate 4 on the fixed pipe 7 on the other side is fixedly connected with a blocking plate through a circle of bolts 5 and nuts.

[0031] The upper layer of anti-blocking rods 8 and the lower layer of anti-blocking rods 8 are arranged in a cross shape.

[0032] The ash removal pipe 3 is arranged above the anti-blocking rod 8.

[0033] The air pressure measuring pipe 6 is arranged below the anti-blocking rod 8.

[0034] The working principle of the utility model is as follows:

[0035] When the inside of the cyclone barrel is blocked, the upper end of the anti-blocking rod 8 is accumulated with materials, and the excessive accumulation of the materials causes the blockage, the real-time pressure data is collected through the air pressure measuring pipe 6 below the anti-blocking rod 8 and the pressure measuring device outside, and is transmitted to the control system, if the pressure data reaches the set value, the control system at this time is set to control the air gun to be opened to remove the materials accumulated on the anti-blocking rod 8 through the dust removal pipe 3.

[0036] When the blocked materials cannot be cleaned through the air gun, the control cyclone barrel is stopped to run, then the bolt 5 and the nut on the flange plate 4 of the anti-blocking rod 8 are removed, the anti-blocking rod 8 is extracted from the inside of the fixing pipe 7, the inside of the cyclone barrel cone part 2 is kept unblocked, the blocked materials in the inside of the cyclone barrel cone part 2 are completely cleaned, then the anti-blocking rod 8 is reinstalled to the inside of the fixing pipe 7, and the cyclone barrel can work normally.

[0037] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the involved claims.

Claims

1. A device for preventing blockage of a cement kiln preheater cyclone cone, said cyclone comprising a cyclone body (1) distributed in an upper and lower part and a cyclone cone (2), characterized in that: The anti-blocking device comprises a dust cleaning pipe (3), an air pressure measuring pipe (6), a fixed pipe (7), and an anti-blocking rod (8). The dust cleaning pipe (3) is arranged on the upper end of the side wall of the cyclone cone (2). The air pressure measuring pipe (6) is arranged on the side wall of the cyclone cone (2). The upper and lower two layers of fixed pipes (7) are fixedly arranged at the middle height of the outer wall of the cyclone cone (2). Each layer of fixed pipes (7) is symmetrically arranged on the two sides of the cyclone cone (2). The two fixed pipes (7) symmetrically arranged on the two sides of the cyclone cone (2) are inserted with the same anti-blocking rod (8). The fixed pipe (7) of the upper layer is perpendicular to the fixed pipe (7) of the lower layer.

2. A device for preventing the blocking of the cone of a cement kiln preheater cyclone according to claim 1, characterized in that: The gas-material mixing inlet (9) is arranged on the outer side of the upper end of the cyclone body (1) and along the tangential direction of the cyclone body (1). The gas flow outlet (10) is arranged at the center of the upper end of the cyclone body (1). The material outlet (11) is arranged at the lower end opening of the cyclone cone (2).

3. A device for preventing the blocking of the conical section of a cyclone of a preheater of a cement kiln according to claim 1, characterized in that: The dust cleaning pipe (3) is arranged in an inclined manner. The inclined downward end of the dust cleaning pipe (3) is connected with the inside of the cyclone cone (2). The inclined upward end of the dust cleaning pipe (3) is connected with the air cannon.

4. A device for preventing plugging of the cone section of a cement kiln preheater cyclone according to claim 1, characterized in that: The air pressure measuring pipe (6) is arranged in an inclined manner. The inclined downward end of the air pressure measuring pipe (6) is connected with the inside of the cyclone cone (2). The inclined upward end of the air pressure measuring pipe (6) is connected with the pressure measuring device.

5. A device for preventing plugging of the cone section of a cement kiln preheater cyclone according to claim 1, characterized in that: The fixed pipe (7) of the upper layer is arranged on the left and right sides of the cyclone. A plurality of fixed pipes (7) are arranged on each side. The plurality of fixed pipes (7) are arranged in a front-rear direction. The fixed pipes (7) on the left side correspond to the fixed pipes (7) on the right side one by one. The fixed pipe (7) of the upper layer is arranged in a horizontal manner along the left-right direction.

6. A device for preventing plugging of the cone section of a cement kiln preheater cyclone according to claim 1, characterized in that: The fixed pipe (7) of the lower layer is arranged on the front and rear sides of the cyclone. A plurality of fixed pipes (7) are arranged on each side. The plurality of fixed pipes (7) are arranged in a left-right direction. The fixed pipes (7) on the front side correspond to the fixed pipes (7) on the rear side one by one. The fixed pipe (7) of the lower layer is arranged in a horizontal manner along the front-rear direction.

7. A device for preventing plugging of the cone section of a cement kiln preheater cyclone according to any one of claims 5 or 6, characterized in that: One end of the fixed pipe (7) is connected with the inside of the cyclone cone (2). The other end of the fixed pipe (7) is fixedly provided with a flange (4). One end of the anti-blocking rod (8) is inserted into the opening of the outer end of the fixed pipe (7) on one side. The other end of the anti-blocking rod (8) penetrates through the cyclone cone (2) and extends into the inside of the corresponding fixed pipe (7) on the other side. The flange (4) is fixedly arranged on the end of the anti-blocking rod (8) extending out of the fixed pipe (7). The flange (4) on the anti-blocking rod (8) is fixedly connected with the flange (4) on the fixed pipe (7) through a circle of bolts (5) and nuts. The flange (4) on the fixed pipe (7) on the other side is fixedly connected with the blocking plate through a circle of bolts (5) and nuts.

8. A device for preventing plugging of the cone section of a cement kiln preheater cyclone according to claim 1, characterized in that: The dust cleaning pipe (3) is arranged above the anti-blocking rod (8).

9. A device for preventing plugging of the cone section of a cement kiln preheater cyclone according to claim 1, characterized in that: The air pressure measuring pipe (6) is arranged below the anti-blocking rod (8).

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