Online gas ash conveying self-filtering valve device

Abstract

The utility model discloses an on-line gas ash conveying self-filtering valve device which comprises a valve body shell, the upper portion of the valve body shell is cylindrical, the lower portion of the valve body shell is conical, a detachable cover plate is arranged on the valve body shell, an access door is arranged on the detachable cover plate, and a flange connecting disc is arranged on the top of the valve body shell. An upper sealing disc, a sieve plate and a lower sealing disc are sequentially arranged in the valve body from top to bottom, the upper sealing disc and the lower sealing disc are connected through an external connecting rod, an electric-hydraulic push rod is fixed to a valve body shell, the electric-hydraulic push rod drives the sealing discs to achieve opening and closing actions, and the self-filtering valve is connected with a bottom flange of a conical section of the valve body shell through a top flange connecting disc. The sealing device is installed between the dust hopper of the dust remover and the dust conveying pipeline, during dust conveying, the upper sealing disc and the lower sealing disc are opened at the same time, and the sieve plate in the valve body effectively filters impurities (such as grass grasses, plastic bags and plastic bottles) in the dust hopper and prevents the impurities from entering the dust conveying pipeline, so that the dust conveying pipeline is prevented from being blocked, the work of frequently cleaning the dust conveying pipeline is reduced, and the labor force is saved.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, specifically to a device for an online gas conveying ash self-filtering valve. Background Technology

[0002] In metallurgical enterprises, dust collectors play a crucial role in the production process, primarily used to remove dust and exhaust gases generated during production, ensuring a clean and safe production environment. The collected dust is typically stored directly in a hopper at the bottom of the dust collector. A discharge valve is installed at the bottom of the hopper, and this valve, connected to a conveying pipeline, allows the collected dust to be periodically discharged and transported to other treatment or storage facilities. The conveying pipeline network is a key component ensuring the smooth transport of the dust.

[0003] However, in actual operation, since the dust collector cannot completely filter all impurities, some impurities will mix into the dust. These impurities enter the ash conveying pipeline through the ash discharge valve. Over time, the impurities gradually accumulate in the pipeline, causing blockage and affecting the working efficiency of the entire ash conveying system. When the blockage reaches a certain level, the flow of the ash conveying pipeline will be severely affected, and even complete blockage may occur. At this time, the company needs to stop production and arrange for manual cleaning of the blockage points, which will not only lead to production stoppage but also increase additional labor and time costs. Utility Model Content

[0004] The purpose of this invention is to provide an online gas conveying ash self-filtering valve to solve the problem that since dust collectors cannot completely filter all impurities, some impurities will mix into the dust. These impurities enter the ash conveying pipeline through the ash discharge valve. Over time, the impurities gradually accumulate in the pipeline, causing blockage and affecting the working efficiency of the entire ash conveying system. When the blockage reaches a certain level, the flow of the ash conveying pipeline will be severely affected, and even complete blockage may occur.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A device for an online gas conveying ash self-filtering valve, comprising a valve body shell, an electro-hydraulic push rod, an upper sealing disc, an upper rotating shaft, a first transmission crank, a connecting crank, a lower sealing disc, a lower rotating shaft, a second transmission crank, and a connecting rod. The valve body shell is a hollow shell with a cylindrical top and a conical bottom. The upper and lower rotating shafts are respectively connected to the upper and lower ends of the valve body shell, and the two rotating shafts are located at the front and rear ends of the valve body shell, respectively. The upper and lower rotating shafts, which run through the left and right ends of the valve body housing, are respectively connected to an upper sealing disc and a lower sealing disc at their ends located inside the valve body housing. An electro-hydraulic actuator is hinged to the right end of the valve body housing, and a first transmission crank is hinged to the top of the piston rod of the electro-hydraulic actuator. The other end of the first transmission crank is connected to the upper rotating shaft. A connecting rod is provided on the left end of the valve body housing, and a connecting crank and a second transmission crank are respectively hinged to the upper and lower ends of the connecting rod. The other end of the connecting crank is connected to the upper rotating shaft, and the second transmission crank is connected to the lower rotating shaft.

[0006] Preferably, it also includes a sieve plate, which is inclinedly disposed inside the valve body housing, with its outer circumference abutting against the inner wall of the valve body housing, located between the upper sealing disc and the lower sealing disc, with an inclination angle of 60°.

[0007] Preferably, the top of the valve body shell is provided with an ash inlet, which is connected to the ash hopper through a flange connecting plate, and the bottom of the conical end of the valve body shell is provided with an ash conveying port, which is connected to the dust removal pipeline through a conical flange.

[0008] Preferably, the contact ends of the upper and lower rotating shafts with the valve body housing are respectively connected to bearing seats.

[0009] Preferably, the upper sealing disc is tightly fitted to the sealing plate connected to the ash inlet, the lower sealing disc is arc-shaped to the contact end with the conical end, and the arc-shaped end is tightly fitted to the sealing ring connected to the ash conveying port of the conical end.

[0010] Preferably, the opening and closing angles of the upper sealing disc and the lower sealing disc are both 0°-80°.

[0011] Preferably, the front end of the valve body shell is connected to a detachable cover plate, which is connected to the valve body shell by bolts. An inspection hole is provided on the cover plate at the position corresponding to the screen plate. An inspection door is hinged to the inspection hole and connected to the cover plate by a latch.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This effectively prevents debris from entering the ash conveying pipeline during the ash conveying process, thus preventing blockages that could affect ash conveying efficiency.

[0014] Close the sealing disc and open the inspection door to clean the debris inside the valve body. After cleaning, close the inspection door and open the sealing disc to carry out ash conveying operations, saving time and effort and reducing the labor intensity of on-site personnel.

[0015] It can achieve multi-point control. An operation box is installed on site, and the operation is carried out by the on-site operator when cleaning up debris. A remote control system is installed and connected to the main control room, and the main control personnel can carry out the ash conveying operation during production, reducing the time that personnel spend on site, avoiding personnel being exposed to high temperature radiation for a long time, and ensuring the safety of the workers.

[0016] It can operate online. When cleaning debris inside the valve body, the upper and lower sealing discs are closed, which does not affect the normal operation of the dust collector and the normal ash conveying of gas. Attached Figure Description

[0017] Figure 1 This is a front view of an online gas conveying and ash filtering valve according to the present invention.

[0018] Figure 2 This is a right view of an online gas conveying and ash self-filtering valve according to the present invention.

[0019] Figure 3 This is a left view of an online gas conveying and ash filtering valve according to the present invention.

[0020] Figure 4 This is an internal cross-sectional view of an online gas conveying and ash filtering valve according to the present invention.

[0021] Figure 5 This is a schematic diagram illustrating an online gas conveying and ash filtering valve according to the present invention.

[0022] In the diagram: 1. Valve body shell; 2. Flange connecting plate; 3. Cover plate; 31. Inspection door; 32. Lock; 4. Tapered flange; 5. Electro-hydraulic actuator; 51. Fixed support; 6. Upper sealing plate; 61. Upper rotating shaft; 611, 612. Upper bearing seat; 613. First transmission crank; 614. Connecting crank; 62. Sealing plate; 7. Screen plate; 8. Lower sealing plate; 81. Lower rotating shaft; 811, 812. Lower bearing seat; 813. Second transmission crank; 82. Sealing ring; 9. Connecting rod. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 this utility model and 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 this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figure 1-5This utility model provides an embodiment of an online gas ash conveying self-filtering valve, comprising a valve body shell 1, an electro-hydraulic push rod 5, an upper sealing disc 6, an upper rotating shaft 61, a connecting crank 614, a lower sealing disc 8, a lower rotating shaft 81, a second transmission crank 813, and a connecting rod 9. The valve body shell 1 is a hollow shell, installed between the dust collector ash hopper and the ash conveying pipeline. The valve body shell 1 mainly serves to support and accommodate other components. The different shapes of its top and bottom (cylindrical and conical) facilitate the flow and sealing of dust. The conical design helps dust pass through smoothly and reduces jamming. Its top is cylindrical and its bottom is conical. An ash inlet is opened at the top of the valve body shell 1, and the ash inlet is connected to a flange plate. 2. Connected to the ash hopper, the valve body shell 1 has an ash conveying port at the bottom of its conical end. The ash conveying port is connected to the dust collection pipeline through a conical flange 4. The ash inlet is responsible for the input of dust, and the ash conveying port is used for the output of dust. Both are connected to the ash hopper and the dust collection pipeline respectively through flanges to ensure smooth dust flow. The upper and lower ends of the valve body shell 1 are respectively connected to an upper rotating shaft 61 and a lower rotating shaft 81, and the two rotating shafts are located at the front and rear ends of the valve body shell 1 respectively. The upper rotating shaft 61 and the lower rotating shaft 81 pass through the left and right ends of the valve body shell 1 respectively. The upper sealing plate 6 and the lower sealing plate 8 are respectively connected to the end of the upper rotating shaft 61 and the lower rotating shaft 81 inside the valve body shell 1. The upper sealing plate 6 and the lower sealing plate 8 are located at the top and bottom of the valve body shell 1 respectively. This valve is used to seal material channels, preventing dust and powder leakage. The opening and closing angle provides operational flexibility, allowing for adjustment of the speed of opening and closing. The opening and closing angles of the upper sealing disc 6 and lower sealing disc 8 are both 0°-80°. An electro-hydraulic actuator 5 is hinged to the right end of the valve body housing 1. The electro-hydraulic actuator 5 is connected to a hydraulic pump, which is controlled by a drive motor. The electro-hydraulic actuator 5 drives the upper rotating shaft 61 to rotate, simultaneously moving the upper sealing disc 6 away from or against the sealing plate 62. Simultaneously, it drives the connecting rod 9 to move via a crank, which in turn drives the lower rotating shaft 81 to rotate, causing the lower sealing disc 8 to move away from or against the sealing ring 82. This allows the valve body housing 1 to open or close entirely. The piston rod of the electro-hydraulic actuator 5 is hinged to a... The first transmission crank 613 has its other end connected to the upper rotating shaft 61. A connecting rod 9 is located on the left side of the valve body housing 1, with two cranks connected to it. This allows the upper rotating shaft 61 and the lower rotating shaft 81 to work together, ensuring their synchronous rotation. This collaborative action completes the opening and closing of the upper sealing disc 6 and the lower sealing disc 8, allowing them to move away from or against the sealing plate 62 and the sealing ring 82, thus enabling ash conveying or sealing. Connecting cranks 614 and the second transmission crank 813 are hinged to the upper and lower ends of the connecting rod 9, respectively. The other end of the connecting crank 614 is connected to the upper rotating shaft 61, and the second transmission crank 813 is connected to the lower rotating shaft 81.

[0028] It also includes a sieve plate 7, which is inclinedly installed inside the valve body housing 1. Its outer circumference abuts against the inner wall of the valve body housing 1, located between the upper sealing disc 6 and the lower sealing disc 8, with an inclination angle of 60°. The sieve plate 7 is used for screening dust and impurities. Its placement inside the valve body housing 1 and contact with the inner wall ensures installation stability. The inclined design allows the screened impurities to slide off smoothly, preventing them from accumulating on the sieve plate 7 and blocking the ash conveying pipe. If the sieve plate 7 were horizontal, impurities would accumulate on it, hindering dust flow and affecting the normal operation of the system.

[0029] Bearing seats are connected to the contact ends of the upper rotating shaft 61 and the lower rotating shaft 81 with the valve body housing 1, respectively. Upper bearing seats 611 and 612 are connected to the contact end of the upper rotating shaft 61 with the valve body housing 1, and lower bearing seats 811 and 812 are connected to the contact end of the lower rotating shaft 81 with the valve body housing 1. The bearing seats support the upper rotating shaft 61 and the lower rotating shaft 81, and simultaneously reduce friction between the upper rotating shaft 61 and the lower rotating shaft 81 during rotation.

[0030] The upper sealing disc 6 is tightly fitted to the sealing plate 62 connected to the ash inlet. The lower sealing disc 8 has an arc-shaped contact end with the conical end. The arc-shaped end is tightly fitted to the sealing ring 82 connected to the ash inlet of the conical end. The sealing plate 62 is responsible for sealing the connection with the ash inlet, and the sealing ring 82 is used to prevent dust or material leakage at the valve connection. At the same time, the sealing ring 82 is made of a high wear-resistant alloy material. The upper sealing disc 6 and the lower sealing disc 8 are tightly fitted to the sealing plate 62 and the sealing ring 82, respectively. When the upper sealing disc 6 and the lower sealing disc 8 are closed and fitted, the valve body shell 1 forms a closed whole, which can effectively prevent dust leakage, ensure a clean operating environment and a long service life of the equipment.

[0031] In use, the electro-hydraulic actuator 5 drives the hydraulic pump via a drive motor. The hydraulic pump draws liquid from the storage tank and pressurizes it into the hydraulic cylinder. The liquid pressure in the hydraulic cylinder drives the piston to move, thereby pushing the actuator to complete a linear motion and perform a downward action. This drives the upper shaft 61 to rotate via the first transmission crank 613. The upper shaft 61 drives the connecting crank 614 to rotate. The connecting crank 614 drives the connecting rod 9 to perform a downward push action. The connecting rod 9 drives the second transmission crank 813 to rotate. The second transmission crank 813 drives the lower shaft 81 to rotate. At this time, the upper sealing disc 6 and the lower sealing disc 8 open simultaneously and synchronously, starting the ash conveying operation. When debris falls into the ash hopper, it is blocked by the screen plate 7 and falls into the ash conveying pipe. Conversely, the electro-hydraulic actuator 5 performs an upward push action, realizing the simultaneous and synchronous closing of the upper sealing disc 6 and the lower sealing disc 8, at which point the ash conveying operation stops.

[0032] Example 2: Please refer to Figure 4 Based on Example 1, it also has the following structure:

[0033] A removable cover plate 3 is connected to the front end of the valve body housing 1. When it is necessary to replace the screen plate 7 or to perform internal maintenance on the valve body housing 1, the bolts can be removed to take off the cover plate 3, thereby enabling maintenance work. The cover plate 3 is connected to the valve body housing 1 by bolts. An inspection hole is provided on the cover plate 3 at the position corresponding to the screen plate 7. The inspection hole is provided on the cover plate 3 to facilitate the inspection, cleaning or maintenance of the screen plate 7. During long-term use, the screen plate 7 will accumulate debris. The inspection hole provides convenience for later maintenance and cleaning. An inspection door 31 is hinged to the inspection hole. 31 is hinged to the inspection hole for easy opening and closing. When it is necessary to inspect the screen plate 7 or clean it, the inspection door 31 can be opened for operation, providing a convenient maintenance method. It is connected to the cover plate 3 by the latch 32. The latch 32 ensures that the inspection door 31 can remain fixed when closed, preventing the inspection door 31 from being accidentally loosened or opened during operation, thus improving the safety of the equipment. When the ash conveying operation is stopped, the on-site operator opens the latch 32, opens the inspection door 31, and cleans the debris from the inside of the valve body shell 1 through the inspection hole.

[0034] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for an online gas conveying ash self-filtering valve, characterized in that: The valve body includes a valve housing (1), an electro-hydraulic actuator (5), an upper sealing disc (6), an upper rotating shaft (61), a first transmission crank (613), a connecting crank (614), a lower sealing disc (8), a lower rotating shaft (81), a second transmission crank (813), and a connecting rod (9). The valve housing (1) is a hollow shell with a cylindrical top and a conical bottom. The upper and lower ends of the valve housing (1) are respectively connected to the upper rotating shaft (61) and the lower rotating shaft (81), and the two rotating shafts are located at the front and rear ends of the valve housing (1). The upper rotating shaft (61) and the lower rotating shaft (81) pass through the left and right ends of the valve housing (1), respectively. (81) An upper sealing disc (6) and a lower sealing disc (8) are respectively connected to one end of the valve body housing (1). An electro-hydraulic push rod (5) is hinged to the right end of the valve body housing (1). A first transmission crank (613) is hinged to the top of the piston rod of the electro-hydraulic push rod (5). The other end of the first transmission crank (613) is connected to the upper rotating shaft (61). A connecting rod (9) is provided on the left side of the valve body housing (1). A connecting crank (614) and a second transmission crank (813) are respectively hinged to the upper and lower ends of the connecting rod (9). The other end of the connecting crank (614) is connected to the upper rotating shaft (61), and the second transmission crank (813) is connected to the lower rotating shaft (81).

2. The device for an online gas conveying ash self-filtering valve according to claim 1, characterized in that: It also includes a sieve plate (7), which is inclinedly arranged inside the valve body shell (1). Its outer circumference abuts against the inner wall of the valve body shell (1) and is located between the upper sealing plate (6) and the lower sealing plate (8), with an inclination angle of 60°.

3. The device for an online gas conveying ash self-filtering valve according to claim 1, characterized in that: The valve body shell (1) has an ash inlet at the top, which is connected to the ash hopper via a flange connection plate (2). The valve body shell (1) has an ash conveying port at the bottom of its conical end, which is connected to the dust removal pipeline via a conical flange (4).

4. The device for an online gas conveying ash self-filtering valve according to claim 1, characterized in that: The upper rotating shaft (61), the lower rotating shaft (81) and the valve body housing (1) are respectively connected to bearing seats at their contact ends.

5. The device for an online gas conveying ash self-filtering valve according to claim 1, characterized in that: The upper sealing disc (6) is tightly fitted with the sealing plate (62) connected to the ash inlet, and the lower sealing disc (8) is arc-shaped with the contact end of the conical end. The arc-shaped end is tightly fitted with the sealing ring (82) connected to the ash conveying port of the conical end.

6. The device for an online gas conveying ash self-filtering valve according to claim 5, characterized in that: The opening and closing angles of the upper sealing disc (6) and the lower sealing disc (8) are both 0°-80°.

7. The device for an online gas conveying ash self-filtering valve according to claim 1, characterized in that: The front end of the valve body shell (1) is connected to a detachable cover plate (3). The cover plate (3) is connected to the valve body shell (1) by bolts. An inspection hole is provided on the cover plate (3) at the position corresponding to the screen plate (7). An inspection door (31) is hinged on the inspection hole and connected to the cover plate (3) by a latch (32).

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