A soot guard for a ceramic foam filter

Abstract

A foam ceramic filter cleaning and protection device includes a lower tank. Multiple vent holes are formed on the outer periphery of the upper end of the lower tank. A conical ring is welded to the inner wall of the lower tank, and multiple notches are formed on the conical ring. An inner ring is provided at the upper end of the lower tank, and a conical shell is formed at the lower end of the inner ring. A discharge hole is formed at the lower end of the conical shell. The outer periphery of the conical shell abuts against the inner periphery of the opening end of the conical ring. A placement ring is formed on the inner ring. A placement groove exists between the upper wall of the placement ring and the upper end of the lower tank. The foam ceramic filter is located in the placement groove and placed on the placement ring. This solution uses an air jet gun to clean the foam ceramic filter. During cleaning, the residue is sprayed downwards into the lower tank along with the conical shell. The conical ring acts as a barrier to prevent the residue from moving upwards, while the notches and vent holes facilitate air discharge, preventing increased internal pressure in the lower tank from affecting the smooth discharge of residue.

Description

Technical Field

[0001] This utility model relates to the field of foam ceramic filter processing technology, and in particular to a foam ceramic filter cleaning and protection device. Background Technology

[0002] After production, foam ceramic filters used in metallurgical casting often contain a large amount of residue. This residue can clog the flow channels, and during the casting process, it can enter the casting, forming inclusions or further obstructing the flow channels and affecting the throughput of molten metal. Therefore, after production, the residue is usually removed by blowing air through the flow channels. Currently, during cleaning, the operator holds the filter in one hand and uses an air gun in the other. During this process, the residue is ejected at high speed with the airflow, which often leads to safety accidents. Utility Model Content

[0003] This utility model provides a foam ceramic filter cleaning and protection device to overcome the shortcomings of the prior art and solve the problem of poor safety during cleaning, thus having strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:

[0005] A foam ceramic filter cleaning and protection device includes a lower tank. Multiple vent holes are provided on the outer periphery of the upper end of the lower tank. A conical ring is welded to the inner wall of the lower tank, with the upper end of the conical ring being the lower end. The upper end of the conical ring is open, and multiple notches are provided on the conical ring. An inner ring is provided at the upper end of the lower tank. A conical shell is formed at the lower end of the inner ring, with the lower end of the conical shell being the smaller end, extending into the conical ring. A slag discharge hole is provided at the lower end of the conical shell. The outer periphery of the conical shell abuts against the inner periphery of the open end of the conical ring. A placement ring is formed on the inner ring. A placement groove exists between the upper wall of the placement ring and the upper end of the lower tank. The foam ceramic filter is located in the placement groove and placed on the placement ring. This solution uses an air jet gun to clean the foam ceramic filter. The residue is sprayed downwards into the lower tank along with the conical shell. The conical ring acts as a barrier to prevent the residue from moving upwards, while the notches and vents facilitate air discharge to prevent the pressure inside the lower tank from increasing and affecting the smooth discharge of residue.

[0006] Furthermore, the vent is located above the conical ring to prevent residue from clogging the vent.

[0007] Furthermore, an outer ring is welded to the outer periphery of the lower tank body, and an upper ring is placed on the outer ring. The upper ring is fitted onto the upper end of the lower tank body, and an upper conical shell is formed at the upper end of the upper ring. The upper end of the upper conical shell is the small end, and an upper hole is opened at the upper end of the upper conical shell. The upper conical shell can prevent the residue from flying out during the slag cleaning process, thereby ensuring safety.

[0008] Furthermore, the upper end of the upper conical shell has a fixed edge, on which a ring is installed by screws. The inner circumference of the ring has an embedded arc groove, within which a sphere is rotatably mounted. A movable hole is opened through the center of the sphere, and a movable tube passes through the movable hole. A first end ring is welded to the upper end of the movable tube, and a connecting tube is welded to the upper end of the movable tube. A spring is fitted on the movable tube, with the upper end of the spring abutting against the lower wall of the first end ring and the lower end of the spring abutting against the sphere. A second end ring is welded to the lower end of the movable tube, located outside the sphere. A cone-shaped nozzle is formed at the lower end of the movable tube, with the lower end being the smaller end. The nozzle, capable of multi-angle rotation and oscillation, facilitates omnidirectional slag cleaning operations. The upper hole is sealed by the sphere. To facilitate observation of the slag cleaning process, a transparent material can be used as the material for the upper conical shell.

[0009] The advantages of the above technical solution are:

[0010] This invention significantly improves the safety of the foam ceramic filter cleaning process and also avoids pollution to the working environment. Attached Figure Description

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0012] Figure 1 A three-dimensional structural diagram of one embodiment is shown.

[0013] Figure 2 A cross-sectional structural diagram of one embodiment is shown.

[0014] Figure 3 A three-dimensional structural diagram of the lower tank is shown.

[0015] Figure 4 The three-dimensional structure of the conical shell is shown. Figure 4 . Detailed Implementation

[0016] like Figures 1-4 As shown, a foam ceramic filter cleaning and protection device includes a lower tank 1. The upper outer periphery of the lower tank 1 is provided with a plurality of vent holes 12. A conical ring 10 is welded to the inner wall of the lower tank 1. The upper end of the conical ring 10 is the lower end. The upper end of the conical ring 10 is open. A plurality of notches 11 are provided on the conical ring 10. The vent holes 12 are located above the conical ring 10.

[0017] The lower tank 1 has an inner ring 21 at its upper end. The lower end of the inner ring 21 is formed with a conical shell 2. The lower end of the conical shell 2 is the smaller end and extends into the conical ring 10. The lower end of the conical shell 2 has a slag discharge hole 20. The outer periphery of the conical shell 2 abuts against the inner periphery of the opening end of the conical ring 10. The inner ring 21 has a placement ring 22. There is a placement groove between the upper wall of the placement ring 22 and the upper end of the lower tank 1. The foam ceramic filter 3 is located in the placement groove and is placed on the placement ring 22.

[0018] An outer ring 14 is welded to the outer periphery of the lower tank body 1. An upper ring 4 is placed on the outer ring 14. The upper ring 4 is fitted onto the upper end of the lower tank body 1. An upper conical shell 40 is formed at the upper end of the upper ring 4. The upper end of the upper conical shell 40 is the small end. An upper hole is opened at the upper end of the upper conical shell 40. The upper end of the upper conical shell 40 is formed with a fixed edge 41. A ring 42 is installed on the fixed edge 41 by screws. An embedded arc groove is formed on the inner circumference of the ring 42. A ball 43 is rotatably arranged in the embedded arc groove. A movable hole is opened through the center of the ball 43. A movable tube 44 is inserted through the movable hole. A first end ring 46 is welded to the upper end of the movable tube 44. A connecting tube 45 is welded to the upper end of the movable tube 44. A spring 47 is sleeved on the movable tube 44. The upper end of the spring 47 abuts against the lower wall of the first end ring 46. The lower end of the spring 47 abuts against the ball 43. A second end ring 48 is welded to the lower end of the movable tube 44. The second end ring 48 is located outside the ball 43. A nozzle 49 with a conical structure is formed at the lower end of the movable tube 44. The lower end of the nozzle 49 is the small end.

[0019] In this embodiment, during operation, the operator places the foam ceramic filter 3 on the placement ring 22, and after placement, the foam ceramic filter 3 is located inside the lower tank 1.

[0020] The operator then places the upper conical shell 40 onto the upper end of the lower tank 1, and starts the blower to deliver high-speed, high-pressure airflow into the movable tube 44. The high-speed, high-pressure airflow is further pressurized through the small hole at the nozzle end and blown onto the foam ceramic filter 3. When the airflow reaches the foam ceramic filter 3, the residue inside the foam ceramic filter 3 is carried downwards by the high-speed, high-pressure airflow and discharged into the conical shell 2 and then into the lower tank 1. Air is discharged through the vent hole 12, and the conical ring 10 prevents the residue from splashing upwards. During the cleaning process, the operator needs to press down on the movable tube 44 to keep the nozzle 49 a short distance from the foam ceramic filter 3, and then rotate or swing the movable tube 44 to completely clean the foam ceramic filter 3. After cleaning, the upper conical shell 40 is removed, the foam ceramic filter 3 is taken out, and the residue in the lower tank 1 is emptied.

[0021] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A foam ceramic filter cleaning and protection device, characterized in that, Includes a lower tank body (1), with multiple vent holes (12) on the outer periphery of the upper end of the lower tank body (1), and a conical ring (10) welded to the inner wall of the lower tank body (1). The upper end of the conical ring (10) is the lower end, the upper end of the conical ring (10) is open, and multiple notches (11) are provided on the conical ring (10). The lower tank (1) has an inner ring (21) at the upper end. The lower end of the inner ring (21) is formed with a conical shell (2). The lower end of the conical shell (2) is the small end, and the lower end of the conical shell (2) extends into the conical ring (10). The lower end of the conical shell (2) is provided with a slag discharge hole (20). The outer periphery of the conical shell (2) abuts against the inner periphery of the opening end of the conical ring (10). The inner ring (21) is formed with a placement ring (22). There is a placement groove between the upper wall of the placement ring (22) and the upper end of the lower tank (1). The foam ceramic filter (3) is located in the placement groove and is placed on the placement ring (22).

2. The foam ceramic filter cleaning and protection device according to claim 1, characterized in that, The vent (12) is located above the conical ring (10).

3. The foam ceramic filter cleaning and protection device according to claim 1, characterized in that, The lower tank (1) is welded with an outer ring (14) on its outer periphery. An upper ring (4) is placed on the outer ring (14). The upper ring (4) is fitted onto the upper end of the lower tank (1). An upper conical shell (40) is formed at the upper end of the upper ring (4). The upper end of the upper conical shell (40) is the small end. An upper hole is opened at the upper end of the upper conical shell (40).

4. The foam ceramic filter cleaning and protection device according to claim 1, characterized in that, The upper end of the upper conical shell (40) is formed with a fixed edge (41), and a ring sleeve (42) is installed on the fixed edge (41) by screws. The inner circumference of the ring sleeve (42) is formed with an embedded arc groove, and a ball (43) is rotatably arranged in the embedded arc groove. A movable hole is opened through the center of the ball (43), and a movable tube (44) is inserted in the movable hole. A first end ring (46) is welded to the upper end of the movable tube (44), and a connecting tube is welded to the upper end of the movable tube (44). (45) A spring (47) is fitted on the movable tube (44). The upper end of the spring (47) abuts against the lower wall of the first end ring (46), and the lower end of the spring (47) abuts against the ball (43). A second end ring (48) is welded to the lower end of the movable tube (44). The second end ring (48) is located outside the ball (43). A nozzle (49) with a conical structure is formed at the lower end of the movable tube (44). The lower end of the nozzle (49) is the small end.

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