Dust discharging valve
By using a transparent end cap and equipping a cleaning device on the conical feed valve, the problems of opaque observation hole covers and safety hazards in the prior art are solved, thereby improving the safety and maintenance efficiency of the equipment.
Patent Information
- Application Number
- CN202422303271.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The existing conical feed valve has an opaque inspection port cover that is difficult to remove, which makes inspection inconvenient and poses a safety hazard. Furthermore, dust may be sprayed out when inspecting the valve without fully depressurizing it.
A transparent end cap is used instead of a metal cover plate, and a cleaning device, including a brush assembly and a rotating assembly, is installed inside to clean the inner end face of the transparent end cap, ensuring clear observation and safety.
This allows for direct observation of the valve's internal condition during equipment operation, improving equipment safety and maintenance efficiency. It also eliminates the dangers caused by incomplete pressure relief during inspections and reduces issues such as reduced pressure in the ash conveying system and high material levels in the ash hopper due to internal leakage.
Smart Images
Figure CN223635471U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of ash unloading equipment, in particular to an ash unloading valve. BACKGROUND
[0002] The conical feeding valve is a device for treating fly ash at the lower part of a dust collector in a coal-fired power plant, a waste incineration power plant, a sludge incineration power plant, and a chemical plant and a foundry, which is installed at the top of the bin pump and is a partition device between the bin pump top bin and the bin pump. It is also a valve device for feeding and filling the bin pump. The valve needs certain airtightness and wear resistance. After the bin pump feeding is completed, the valve needs to be tightly closed. During the process of conveying materials by pressurizing the inside of the bin pump, the valve cannot have any leakage and is in a pressure maintaining state.
[0003] In the related art, the conical feeding valve body has a circular metal cover plate as an observation hole. The cover plate is made of opaque metal material, a small hole is arranged at the center of the cover plate, and the small hole is closed by a small screw and a copper pad. The small hole is used to check whether the valve inside is worn and leaked during the inspection process. Checking whether the valve inside is leaked during the inspection process needs to use a corresponding wrench to unscrew the center screw of the cover plate. This operation is not convenient, and in the case where the number of valves is large, the workload is large. If the inside of the bin pump is not completely depressurized when the screw is opened, there is a risk that compressed air with ash will be ejected from the small hole. CONTENT OF THE UTILITY MODEL
[0004] The purpose of the present disclosure is to provide an ash unloading valve to at least partially solve the problems in the related art.
[0005] In order to achieve the above-mentioned purpose, the present disclosure provides an ash unloading valve, which comprises a valve body and a transparent end cover installed at the end of the valve body. A cleaning device is arranged in the valve body, and the cleaning device is used to clean the inner end surface of the transparent end cover.
[0006] Optionally, the cleaning device comprises:
[0007] a brush strip assembly for brushing the inner end surface of the transparent end cover; and
[0008] a rotating assembly arranged through the transparent end cover and used to drive the brush strip assembly to rotate.
[0009] Optionally, the brush strip assembly comprises a scraping arm and a cleaning strip installed on the scraping arm, and the cleaning strip abuts against the inner end surface of the transparent end cover.
[0010] Optionally, the material of the cleaning strip is fluorine glue.
[0011] Optionally, the scraping arm has a clamping groove for the cleaning strip to extend into, and the cleaning strip is fixed to the scraping arm by a fastener.
[0012] Optionally, the rotating assembly comprises a screw rod arranged through the transparent end cover, one end of the screw rod located outside the transparent end cover is provided with a rotating head, and one end of the screw rod located inside the transparent end cover is fixedly connected with the scraping arm.
[0013] Optionally, the screw rod is provided with a fixed nut on each side of the scraping arm.
[0014] Optionally, the transparent end cover is provided with a mounting hole through which the screw rod passes, and the screw rod is provided with a sealing ring at a position corresponding to the mounting hole.
[0015] Optionally, the screw rod is provided with a gasket on each side of the sealing ring, and an elastic member is arranged between the gasket close to the rotating head and the rotating head and between the gasket away from the rotating head and the fixed nut.
[0016] Optionally, the transparent end cover is made of polycarbonate.
[0017] By the above technical solution, the transparent end cover is used to replace the traditional metal material observation hole cover plate, so that the inspection personnel can intuitively observe the valve core action condition inside the valve and whether the valve is worn out during equipment operation, thereby timely equipment maintenance is performed, and the equipment safe operation guarantee rate is effectively improved. The cleaning device is arranged in the transparent cover plate, when the transparent cover plate is dusty and blurred, the cleaning device can be used to clean the transparent cover plate, so that the transparent cover plate returns to the perspective state, and the valve interior is observed. The design of the transparent end cover completely isolates the pressure environment from the inspection personnel, eliminates the danger of checking the valve under incomplete pressure relief, and improves the safety of the staff.
[0018] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0019] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following specific embodiments to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:
[0020] Figure 1 is a sectional view of the ash unloading valve without the valve body provided by an exemplary embodiment of the present disclosure;
[0021] Figure 2 is a schematic view of the transparent cover plate in the ash unloading valve provided by an exemplary embodiment of the present disclosure.
[0022] LIST OF ELEMENTS
[0023] 1 - transparent end cover; 21 - squeegee arm; 22 - cleaning strip; 23 - fastener; 31 - screw; 32 - rotating head; 33 - fixing nut; 34 - sealing ring; 35 - gasket; 36 - elastic member DETAILED DESCRIPTION
[0024] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.
[0025] In the present disclosure, "inner" and "outer" are relative to the contour of the respective component itself, unless otherwise stated. In the present disclosure, the following description refers to the drawings, and the same numerals in different drawings represent the same or similar elements, unless otherwise indicated.
[0026] Reference Figure 1 , Figure 2 The present disclosure provides a dust discharging valve, which can include a valve body and a transparent end cover 1 mounted at the end of the valve body, and a cleaning device is arranged in the valve body to clean the inner end surface of the transparent end cover 1. Specifically, the thickness of the transparent end cover 1 can be 10 mm, which can withstand the pressure of normal working conditions.
[0027] Through the above technical solution, the transparent end cover is used to replace the traditional metal material observation hole cover plate, so that the valve core action inside the valve and whether the valve is worn can be directly observed by the inspection personnel during equipment operation, so that timely equipment maintenance can be carried out, and the safety operation guarantee rate of the equipment can be effectively improved. The cleaning device is arranged inside the transparent cover plate, so that when the transparent cover plate is covered with dust, the transparent cover plate can be cleaned by the cleaning device, so that the transparent cover plate can be restored to the perspective state, and the inside of the valve can be easily observed. The design of the transparent end cover completely isolates the pressure environment from the inspection personnel, eliminates the danger of checking the valve under incomplete pressure relief, and improves the safety of the staff.
[0028] The end cover of the dust discharging valve of the dust hopper of the electric dust collector is replaced by a visible transparent end cover, and a cleaning device is arranged inside to regularly clean the dust accumulated on the transparent end cover. The leakage of the dust discharging system of the electric dust collector can be regularly checked through the visualization of the dust discharging valve, the internal leakage of the dust discharging valve can be effectively pre-controlled, the normal dust conveying is not affected due to the pressure reduction of the dust conveying system caused by the internal leakage of the valve, and the problem of the high material level of the dust hopper causing the rectifier transformer to be out of standby due to the internal leakage of the dust discharging valve is reduced. The design can improve the fault finding efficiency of the maintenance personnel for the internal leakage of the dust discharging valve, reduce the maintenance cycle, and reduce the occurrence of the high material level of the dust hopper and the threat to the safe and stable operation of the rectifier transformer caused by the abnormal dust conveying curve due to the internal leakage of the valve.
[0029] As an exemplary implementation of this disclosure, reference is made to Figure 1 The cleaning device may include a brush assembly and a rotating assembly. The brush assembly is used to brush the inner end face of the transparent end cover 1. The rotating assembly passes through the transparent end cover 1 and is used to drive the brush assembly to rotate. When the transparent end cover 1 becomes dusty and blurry, the inspector can use the rotating assembly to drive the brush assembly to rotate, thereby cleaning the transparent end cover 1 and restoring the transparent plate to its transparent state, making it easier to observe the inside of the valve.
[0030] Among them, reference Figure 1 The brush assembly may include a scraper arm 21 and a cleaning strip 22 mounted on the scraper arm 21, the cleaning strip 22 abutting against the inner end face of the transparent end cap 1. The rotating assembly can drive the scraper arm 21 to rotate the cleaning strip 22 to clean the inner end face of the transparent end cap 1.
[0031] Specifically, the cleaning strip 22 can be made of fluororubber. Fluororubber has excellent chemical stability and high temperature resistance, and can quickly recover after being deformed by external pressure.
[0032] Furthermore, referring to Figure 1 The scraper arm 21 has a slot for the cleaning strip 22 to extend into, and the cleaning strip 22 can be fixed to the scraper arm 21 by fasteners 23. Specifically, the fasteners 23 can be screws, and the scraper arm 21 can be made of metal. By using multiple screws to fix the cleaning strip 22 to the scraper arm 21, when the cleaning strip 22 shows signs of wear, the brush strip assembly can be maintained simply by manually cutting the cleaning strip 22 to the appropriate size using the corresponding material and fixing it to the scraper arm 21 with screws. Maintenance is simple.
[0033] In some embodiments, refer to Figure 1 The rotating assembly may include a screw 31 passing through the transparent end cover 1. A rotating head 32 is mounted on the outer end of the screw 31 of the transparent end cover 1, and the inner end of the screw 31 of the transparent end cover 1 is fixedly connected to the scraper arm 21. When the transparent end cover 1 becomes cloudy due to dust, the inspector can manually rotate the rotating head 32 through the rotating assembly, causing the internal cleaning strip 22 to rotate 360°, thereby cleaning the transparent end cover 1 and restoring its transparent state for easy observation of the valve interior.
[0034] Furthermore, referring to Figure 1 Fixing nuts 33 can be installed on both sides of the screw 31 located on the scraper arm 21. The fixing nuts 33 can fasten the scraper arm 21 to the screw 31.
[0035] Furthermore, referring to Figure 1The transparent end cover 1 has a mounting hole for the screw rod 31 to pass through, and a sealing ring 34 can be sleeved at the position corresponding to the mounting hole of the screw rod 31. Specifically, the sealing ring 34 can be made of fluorine glue, and the number can be two. The sealing ring 34 can seal the gap between the transparent end cover 1 and the screw rod 31, which can not only have good sealing performance, but also have good positioning performance. Replacing the original blocking plate with the transparent end cover 1 can directly and periodically observe the internal leakage of the valve cone and the sealing ring 34, and the pre-control and pre-judgment of the valve internal leakage can be performed in advance.
[0036] In some embodiments, with reference to Figure 1 Specifically, the two sides of the screw rod 31 located on both sides of the sealing ring 34 can be sleeved with a gasket 35 respectively, and the gasket 35 close to the rotating head 32 and the rotating head 32 and the gasket 35 away from the rotating head 32 and the fixed nut 33 can be respectively provided with an elastic element 36. The elastic element 36 can be a tension spring, which can increase the pressing force of the brush strip assembly, so that the cleaning strip 22 is pressed on the inner end face of the transparent end cover 1.
[0037] Specifically, the material of the transparent end cover 1 can be polycarbonate. Polycarbonate has the characteristics of high temperature resistance.
[0038] The preferred embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept range of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection range of the present disclosure.
[0039] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combination manners are not described again in the present disclosure.
[0040] In addition, various different embodiments of the present disclosure can also be combined in any manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed by the present disclosure.
Claims
1. A cinder valve, characterized in that The valve body is provided with a cleaning device for cleaning the inner end face of the transparent end cover, the cleaning device comprises: a brush strip assembly for brushing the inner end face of the transparent end cover, the brush strip assembly comprises a scraping arm and a cleaning strip mounted on the scraping arm, and the cleaning strip abuts against the inner end face of the transparent end cover; and a rotating assembly arranged through the transparent end cover for driving the brush strip assembly to rotate, the rotating assembly comprises a screw rod arranged through the transparent end cover, one end of the screw rod located outside the transparent end cover is provided with a rotating head, and the other end of the screw rod located inside the transparent end cover is fixedly connected with the scraping arm.
2. The cinder valve according to claim 1, characterized in that The cleaning strip is made of fluorine glue.
3. The cinder valve according to claim 1, wherein The scraping arm is provided with a clamping groove for the cleaning strip to extend into, and the cleaning strip is fixed to the scraping arm through a fastener.
4. The cinder valve according to claim 1, wherein The screw rod is provided with a fixed nut on both sides of the scraping arm.
5. The trap valve of claim 4, wherein, The transparent end cover is provided with a mounting hole for the screw rod to pass through, and the screw rod is provided with a sealing ring at a position corresponding to the mounting hole.
6. The cinder valve according to claim 5, characterized in that The screw rod is provided with a gasket on both sides of the sealing ring, and an elastic member is arranged between the gasket close to the rotating head and the rotating head and between the gasket away from the rotating head and the fixed nut.
7. The cinder valve according to claim 1, wherein The transparent end cover is made of polycarbonate.