Ceramic filter of graphitization furnace

Abstract

The utility model discloses a ceramic filter of a graphitization furnace. The ceramic filter comprises a shell, an ultrasonic cleaning assembly, an ultrasonic vibrator, a bottom vertical pipe, an air inlet pipe and an air outlet pipe, a ceramic filter element is arranged in the shell, a perforated cover plate is arranged at the top of the shell, a plurality of internal threaded holes are formed in the periphery of a hole of the perforated cover plate, and an ultrasonic cleaning assembly is mounted in the hole of the perforated cover plate. The ultrasonic cleaning assembly extends into the shell and is provided with a circular mounting plate, a gasket is arranged below the mounting plate, the mounting plate is provided with a plurality of through holes corresponding to the internal threaded holes, bolts penetrate through the through holes, and the bolts are in threaded connection with the internal threaded holes to press and fix the ultrasonic cleaning assembly to the perforated cover plate. And a plurality of layers of annular array ultrasonic vibrators are arranged on the outer side wall of the shell. According to the equipment provided by the utility model, the filter element can be cleaned on line, so that the operation is convenient; the cleaning effect is good, and damage to the filter element is small; and after cleaning is completed, hot air can be introduced for drying, and the equipment shutdown time is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphitization furnaces, and particularly relates to a ceramic filter of a graphitization furnace. Background Art

[0002] The graphitization furnace is mainly used for sintering and graphitization of carbon materials, graphitization of PI films, graphitization of thermal conductive materials, sintering of carbon fiber ropes, sintering and graphitization of carbon fiber filaments, purification of graphite powder and high-temperature treatment of other materials that can be graphitized under carbon environment. Its operating temperature is as high as 3000℃, with the characteristics of high production efficiency, energy saving and power saving. It is equipped with an online temperature measurement and control system, which can monitor the temperature in the furnace in real time and adjust it automatically.

[0003] During the graphitization process of carbon materials, the ultra-high temperature in the graphitization furnace causes the ash substances in the carbon materials, including chemical substances of various elements such as potassium, sodium, calcium, magnesium, aluminum, silicon, phosphorus, etc., to reach a critical state of volatilization, separate from the carbon materials, and become free in the furnace body, forming flue gas, which is then sucked away by the vacuum system.

[0004] The extracted flue gas is generally treated initially with a ceramic filter. The ceramic filter has good high temperature resistance and corrosion resistance. Fine particles and volatile impurities in the flue gas will adhere to the surface of the ceramic filter element in the form of powder, which has a preliminary filtering effect. If the ceramic filter is not cleaned promptly and thoroughly, it will affect the filtering effect and service life of the filter, and will also cause serious blockage of the second paper filter element, affecting the vacuum degree of the entire system, so that the impurities volatilized by ultra-high temperature cannot be extracted and are deposited in the graphite furnace body.

[0005] During the cleaning process, the ceramic filter needs to maintain its original structure and performance. The cleaning method should not be too intense, so as not to damage the structure and performance of the filter and affect its filtering effect in the graphitization furnace flue gas treatment.

[0006] In the past, ceramic filter elements were usually cleaned by using a gantry truck to lift the filter element out for manual cleaning. Therefore, it is very important to design a ceramic filter that is easy to clean and not prone to damage the filter element during cleaning. Utility Model Content

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a ceramic filter for a graphitization furnace, comprising a shell, an ultrasonic cleaning component, an ultrasonic vibrator, a bottom vertical pipe and an air inlet pipe.

[0008] It includes a shell, an ultrasonic cleaning component, an ultrasonic vibrator, a bottom vertical pipe, an air inlet pipe and an air outlet pipe.

[0009] A ceramic filter element is arranged in the shell, a perforated cover plate is arranged on the top of the shell, a plurality of internal threaded holes are arranged around the opening of the perforated cover plate, and the ultrasonic cleaning component is installed in the opening of the perforated cover plate.

[0010] The ultrasonic cleaning component extends into the shell, and a circular mounting plate is provided on the ultrasonic cleaning component, a gasket is provided under the mounting plate, and a plurality of through holes corresponding to the internal threaded holes are provided on the mounting plate, and bolts are passed through the through holes, and the bolts are screwed into the internal threaded holes to press and fix the ultrasonic cleaning component on the opening cover plate.

[0011] A plurality of ultrasonic vibrators are arranged on the outer side wall of the shell.

[0012] Furthermore, the ultrasonic vibrators are in a multi-layer annular array.

[0013] The bottom of the shell is connected to the bottom vertical pipe, the side wall of the bottom vertical pipe is connected to the air inlet pipe, and the upper right side wall of the shell is connected to the air outlet pipe.

[0014] Furthermore, the side wall of the bottom vertical pipe is connected to an air pipe, and an air pipe valve is provided on the air pipe.

[0015] Furthermore, the upper right side wall of the shell is connected with a water inlet pipe, and the water inlet pipe is provided with a water inlet valve.

[0016] Furthermore, a sewage pipe is connected below the bottom vertical pipe, and a sewage valve is provided on the sewage pipe.

[0017] The utility model provides a ceramic filter for a graphitization furnace, which has the following advantages: the filter element can be cleaned online without disassembly, and the operation is convenient; ultrasonic vibration is used for cleaning, and the cleaning effect is good with little damage to the filter element; after cleaning, hot air can be introduced for drying, thereby shortening the equipment downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the appearance of a ceramic filter of a graphitization furnace of the utility model;

[0020] Figure 2 It is a schematic diagram of an ultrasonic cleaning assembly of a ceramic filter of a graphitization furnace of the utility model;

[0021] Figure 3 The utility model is a schematic diagram of the installation position of a ceramic filter of a graphitization furnace.

[0022] Explanation of the reference numerals in the figure: 1. Shell, 101. Cover plate, 102. Internal threaded hole, 2. Ultrasonic cleaning assembly, 201. Mounting plate, 202. Gasket, 203. Through hole, 3. Ultrasonic vibrator 4. Bottom vertical pipe, 5. Air inlet pipe, 6. Air outlet pipe, 7. Air pipe, 701. Air pipe valve, 8. Water inlet pipe, 801. Water inlet valve, 9. Sewage pipe, 901. Sewage valve. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, an embodiment of the utility model is a ceramic filter for a graphitization furnace, comprising a housing 1, an ultrasonic cleaning component 2, an ultrasonic vibrator 3, a bottom vertical pipe 4, an air inlet pipe 5 and an air outlet pipe 6.

[0026] A ceramic filter element is arranged in the housing 1 , a perforated cover plate 101 is arranged on the top of the housing 1 , a plurality of internal threaded holes 102 are arranged around the opening of the perforated cover plate 101 , and an ultrasonic cleaning component 2 is installed in the opening of the perforated cover plate 101 .

[0027] The ultrasonic cleaning component 2 is inserted into the shell 1 and is located in the center of the ceramic filter element. A circular mounting plate 201 is provided on the ultrasonic cleaning component 2, and a gasket 202 is provided under the mounting plate 201. The mounting plate 201 is provided with a plurality of through holes 203 corresponding to the internal threaded holes 102. Bolts are passed through the through holes 203. The bolts are screwed into the internal threaded holes 102 to press and fix the ultrasonic cleaning component 2 on the perforated cover plate 101. The gasket 202 can ensure the sealing of the ceramic filter and reduce the vibration of the ultrasonic cleaning component 2 during operation to avoid resonance between the pipeline and the equipment. After removing the bolts, the ultrasonic cleaning component 2 can be pulled out from the shell 1 to facilitate the maintenance of the ultrasonic cleaning component 2.

[0028] A plurality of ultrasonic vibrators 3 are disposed on the outer side wall of the housing 1 .

[0029] Preferably, the ultrasonic vibrator 3 is in a multi-layer annular array, which can fully wrap the shell 1, and can produce sufficiently strong ultrasonic vibrations to the ceramic filter in conjunction with the ultrasonic cleaning component 2, thereby achieving the effect of cleaning and removing dirt.

[0030] The bottom of the shell 1 is connected to a bottom vertical pipe 4, the side wall of the bottom vertical pipe 4 is connected to an air inlet pipe 5, the upper right side wall of the shell 1 is connected to an air outlet pipe 6, the air inlet pipe 5 is connected to the air outlet pipe of the vacuum system of the graphitization furnace, and the treated flue gas is discharged from the air outlet pipe 6.

[0031] Preferably, the side wall of the bottom vertical pipe 4 is connected to an air pipe 7, on which an air pipe valve 701 is provided. The air pipe 7 is used to allow hot air to pass through for backblowing, so that the cleaned ceramic filter element can be quickly dried, thereby shortening the downtime of the equipment.

[0032] Preferably, the upper right side wall of the shell 1 is connected with a water inlet pipe 8, and a water inlet valve 801 is provided on the water inlet pipe 8. The water inlet pipe 8 is used to introduce clean water during online cleaning to strengthen the conduction of ultrasound and enhance the cleaning effect.

[0033] Preferably, a sewage pipe 9 is connected below the bottom vertical pipe 4, and a sewage valve 901 is provided on the sewage pipe 9. The sewage pipe 9 is used to discharge dirty water after cleaning.

[0034] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A ceramic filter for a graphitization furnace, characterized in that: It comprises a housing (1), an ultrasonic cleaning assembly (2), an ultrasonic vibrator (3), a bottom vertical pipe (4), an air inlet pipe (5) and an air outlet pipe (6); A ceramic filter element is provided in the housing (1), a perforated cover plate (101) is provided on the top of the housing (1), a plurality of internal threaded holes (102) are provided around the opening of the perforated cover plate (101), and the ultrasonic cleaning component (2) is installed in the opening of the perforated cover plate (101); The ultrasonic cleaning component (2) is inserted into the interior of the housing (1); a circular mounting plate (201) is provided on the ultrasonic cleaning component (2); a gasket (202) is provided below the mounting plate (201); a plurality of through holes (203) corresponding to the internal threaded holes (102) are provided on the mounting plate (201); bolts are passed through the through holes (203); the bolts are screwed into the internal threaded holes (102) to press and fix the ultrasonic cleaning component (2) on the opening cover plate (101); The outer side wall of the shell (1) is provided with a plurality of ultrasonic vibrators (3); The bottom of the shell (1) is connected to the bottom vertical pipe (4), the side wall of the bottom vertical pipe (4) is connected to the air inlet pipe (5), and the upper right side wall of the shell (1) is connected to the air outlet pipe (6).

2. The ceramic filter for a graphitization furnace according to claim 1, characterized in that: The ultrasonic vibrators (3) are in the form of a multi-layer annular array.

3. The ceramic filter for a graphitization furnace according to claim 1, characterized in that: The side wall of the bottom vertical pipe (4) is connected to an air pipe (7), and an air pipe valve (701) is provided on the air pipe (7).

4. The ceramic filter for a graphitization furnace according to claim 1, characterized in that: The upper right side wall of the housing (1) is connected to a water inlet pipe (8), and a water inlet valve (801) is provided in the middle of the water inlet pipe (8).

5. The ceramic filter for a graphitization furnace according to claim 1, characterized in that: A sewage pipe (9) is connected below the bottom vertical pipe (4), and a sewage valve (901) is provided on the sewage pipe (9).

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