Wide ash pushing and conveying equipment of dust remover
The wide-width push-and-conveyance device for dust collectors addresses dust blockage issues by using a controlled pusher mechanism to prevent accumulation and reduce collector height, enhancing operational efficiency and safety.
Patent Information
- Application Number
- CN202422406507.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The ash bucket of the sintering machine head electrostatic precipitator is prone to accumulating dust, resulting in ablocking dust. The existing mechanical and pneumatic ash transfer methods cannot be properly unloaded, which affects the system operation and safety, especially when the dust contains a large amount of water.
A wide-width ash-pushing equipment is designed, including ash-pushing device, a sealed base and ash-pushing shell. The dust in the ash-pushing device is used to push the dust in the ash bucket directly into the scraper, and the reciprocating movement is achieved through the drive device to avoid accumulation of dust and lumps. The large-size lower ash port design is used to reduce the height of the ash bucket.
Effectively avoid ash accumulation and agglomeration of ash bucket, improve the efficiency of ash transfer, reduce construction costs, reduce equipment safety hazards, realize continuous or short-term ash transfer, and avoid increasing the ash bucket height.
Smart Images
Figure CN223101971U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrostatic precipitators, in particular to a wide-width ash pushing and ash conveying device for a dust collector. Background Technique
[0002] Electrostatic precipitators collect dust through high-voltage static electricity and other means, and make the dust fall into the lower ash hopper. Finally, it is transported to a designated location through an ash conveying device, and is widely used in industries such as coal-fired power plants, metallurgy, mines, cement, building materials, and chemical industries. The dust collector is usually equipped with an ash hopper, and the diameter of the ash outlet of the ash hopper is about 400mm×400mm. The ash conveying device arranged below the ash outlet includes a mechanical ash conveying device or a pneumatic ash conveying device for conveying.
[0003] At present, the two ash conveying mechanisms of mechanical ash conveying or pneumatic conveying have been very extensive and mature. However, in some working conditions, especially in the application of electrostatic precipitators at the sintering machine head, due to the characteristics of sintering flue gas, the ash hopper of the electrostatic precipitator at the sintering machine head is generally a square opening of about 400mm, which is prone to ash accumulation, secondary sintering, and caking, resulting in ash blockage. In the case of ash blockage, neither mechanical ash conveying nor pneumatic ash conveying can perform the ash unloading and conveying work, resulting in the dust collector or even the sintering system being unable to operate normally or shut down, as well as major equipment safety hazards, affecting the operation efficiency of the system. In addition, when using the pneumatic ash conveying method, the pneumatic conveying system has many components and many fault points, and the cost is high; in addition, if the moisture content of the conveyed dust is large and the viscosity is high, the conveying pipeline of the pneumatic conveying equipment is prone to material blockage, resulting in the paralysis of the ash conveying equipment and the ash blockage of the dust collector. Content of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides a wide-width ash pushing and ash conveying device for a dust collector, which solves the problem that the ash hopper of the dust collector is prone to ash blockage, resulting in the inability of the ash conveying equipment to unload and convey ash normally.
[0005] To achieve the above object, the utility model provides the following technical solution: A wide-width ash pushing and ash conveying device for a dust collector, including an ash pushing device, a sealing base, and an ash pushing housing; the ash pushing housing is fixedly installed below the ash hopper of an external electrostatic precipitator, and an ash outlet is provided at the front side of the bottom. A scraper conveyor is arranged in the ash outlet; the ash pushing device is arranged on the inner bottom plate of the ash pushing housing, and includes a main ash pushing plate, a front-end ash pushing plate, and a connecting push rod; the main ash pushing plate is a hollow long straight plate, the front-end ash pushing plate is a hollow V-shaped plate, which is fixedly installed on the front end face of the main ash pushing plate, with the tip facing forward. A through hole is provided in the middle of the main ash pushing plate, and the connecting push rod passes through the main ash pushing plate and is fixedly connected to the V-shaped middle part of the front-end ash pushing plate;
[0006] The sealed base is installed at the rear side of the ash pushing housing, and is provided with a sealed packing seat and a maintenance manhole door; the sealed packing seat is fixedly connected with the ash pushing housing, there are a plurality of the maintenance manhole doors, which are arranged on the side surface of the sealed base; a push rod is arranged in the sealed base, and a driving device is installed at the other end of the sealed base relative to the sealed packing seat, the driving device is provided with a push rod head, the push rod head is connected with one end of the push rod, the push rod passes through the sealed base and enters the ash pushing housing, and is connected with the connecting push rod in the ash pushing housing.
[0007] Further, the cross section of the main ash pushing plate is trapezoidal, and the angle between the return stroke direction of the rear end surface of the main ash pushing plate and the bottom plate of the ash pushing housing is smaller than the angle between the front end surface of the ash pushing and the bottom plate of the ash pushing housing.
[0008] Further, trapezoidal sealing plates are arranged on both side surfaces of the main ash pushing plate.
[0009] Further, the cross section of the front ash pushing plate is triangular.
[0010] Further, reinforcing connecting plates are arranged on both sides of the middle part of the connecting push rod, the reinforcing connecting plates are triangular, the bottom edges face forward, and the vertices face backward. After installation, the reinforcing connecting plates are located in the inner cavity of the main ash pushing plate.
[0011] Further, two guiding and limiting plates are arranged in the advancing space at the front end of the main ash pushing plate, the guiding and limiting plates are right-angled triangular plates, the right-angled sides are against the outer side surfaces, and are respectively installed above both sides of the front ash pushing plate.
[0012] Further, a guiding device for preventing skew is installed directly above the ash pushing device in the ash pushing housing, the guiding device is a guiding slide bar, a slider is fixedly arranged in the middle of the upper end of the main ash pushing plate, and the slider is slidably installed on the guiding device.
[0013] Compared with the prior art, the utility model provides a wide-width ash pushing and ash conveying device for a dust collector, which has the following beneficial effects:
[0014] 1. In the utility model, the ash pushing housing is directly connected with the dust hopper of the dust collector, the dust collected by the dust collector directly falls into the ash pushing housing, and then the accumulated ash is pushed into the next-stage ash conveying device for ash conveying by the internal ash pushing device; the driving device is controlled by a position sensing element and a control program to realize two reciprocating motions of ash pushing and return stroke, so as to avoid the accumulation of ash and caking.
[0015] 2. The utility model can perform ash transportation in short intermittent or continuous mode, avoiding the accumulation of dust captured by the dust collector in the ash hopper. The ash hopper adopts a large-sized ash discharge opening, and ash can directly fall into the ash pushing housing body without the need to set a blanking opening, realizing the reduction of the height of the ash hopper and avoiding the occurrence of ash hopper caking and secondary sintering. This large-sized ash transportation method greatly reduces the height of the ash hopper, saves the weight of steel, reduces the height of the foundation support of the dust collector, and greatly reduces the construction cost.
[0016] 3. The front end of the ash pushing device of the utility model is set as an inclined plate and a triangular pushing plate, reducing the resistance of the ash pushing device in the ash pile, being able to push most of the ash to the discharge port, and being able to turn the ash to the front of the pushing plate through the extrusion of ash during the return journey to enter the next ash pushing, greatly improving the ash pushing efficiency. Brief Description of the Drawings
[0017] Figure 1 is the front view schematic diagram of the utility model;
[0018] Figure 2 is the overall structure schematic diagram of the utility model;
[0019] Figure 3 is the connection schematic diagram of the ash pushing mechanism of the utility model;
[0020] Figure 4 is the split schematic diagram of the ash pushing device of the utility model;
[0021] Figure 5 is the split schematic diagram of the driving device and the push rod of the utility model.
[0022] In the figure: 1 ash pushing device, 11 main pushing ash plate, 12 front end ash pushing plate, 13 connecting push rod, 14 reinforcing connecting plate, 15 sealing plate, 16 guiding and limiting plate, 17 through hole;
[0023] 2 sealing base, 21 sealing packing seat, 22 maintenance manhole door;
[0024] 3 ash pushing housing body, 31 ash discharge port, 32 bottom plate;
[0025] 4 guiding device, 5 driving device, 51 push rod head, 6 push rod, 7 scraper conveyor, 8 ash hopper. Detailed Embodiment
[0026] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the utility model.
[0027] Please refer to Figures 1-5 , in this embodiment: A wide-width ash pushing and ash conveying device for a dust collector, including an ash pushing device 1, a sealing base 2, and an ash pushing housing 3.
[0028] The ash pushing housing 3 is fixedly installed below the ash hopper 8 of the external electrostatic precipitator. There is an ash outlet 31 at the front side of the bottom. A scraper conveyor 7 is provided in the ash outlet 31; the ash pushing device 1 is arranged on the inner bottom plate 32 of the ash pushing housing 3, including a main ash pushing plate 11, a front-end ash pushing plate 12, and a connecting push rod 13; the main ash pushing plate 11 is a hollow long straight plate, and the front-end ash pushing plate 12 is a hollow V-shaped plate, fixedly installed on the front end face of the main ash pushing plate 11, with the tip facing forward. There is a through hole 17 in the middle of the main ash pushing plate 11, and the connecting push rod 13 passes through the main ash pushing plate 11 and is fixedly connected to the V-shaped middle part of the front-end ash pushing plate 12.
[0029] During the movement of the ash pushing device 1, the connecting push rod 13 drives the front-end ash pushing plate 12 and the main ash pushing plate 11 to move towards the scraper conveyor 7. The main ash pushing plate 11 and the front-end ash pushing plate 12 closely adhere to the bottom plate of the ash pushing housing 3. The ash pushing device 1 pushes the ash into the scraper conveyor 7 for ash conveying.
[0030] The sealing base 2 is installed at the rear side of the ash pushing housing 3, and is provided with a sealing packing seat 21 and a maintenance manhole door 22. The sealing packing seat 21 is fixedly connected to the ash pushing housing 3 to fixedly install the sealing base 2 on the ash pushing housing 3. There are multiple maintenance manhole doors 22 arranged on the side of the sealing base 2. A push rod 6 is provided in the sealing base 2. At the other end of the sealing base 2 opposite to the sealing packing seat 21, a driving device 5 is installed. The driving device 5 can adopt a pneumatic cylinder, an electro-hydraulic push rod, a hydraulic cylinder, an electric gear machine, a reciprocating telescopic machine, etc., and is provided with a push rod head 51. The push rod head 51 is connected to one end of the push rod 6. The push rod 6 passes through the sealing base 2 and enters the ash pushing housing 3, and is connected to the connecting push rod 13 of the ash pushing device 1 in the ash pushing housing 3. Through the reciprocating push of the driving device 5, the ash pushing device 1 can make a reciprocating movement in the ash pushing housing 3. The push rod head 51 and the push rod 6 adopt a connection method such as a U-shaped fork head.
[0031] Furthermore, as shown in Figure 3 、 4 , the cross-section of the main ash pushing plate 11 is trapezoidal. The ash pushing front end face is perpendicular to or set at a certain angle with the bottom plate 32 of the ash pushing housing 3, so that more ash can be pushed into the scraper conveyor 7 during ash pushing; the rear end face of the main ash pushing plate 11 in the return direction is set at a certain angle with the bottom plate 32 of the ash pushing housing 3, and the angle is smaller than the ash pushing angle of the ash pushing front end face, aiming to enable the accumulated ash at the rear to be turned over to the front more easily when the main ash pushing plate 11 returns. Trapezoidal sealing plates 15 are also provided on both sides of the main ash pushing plate 11. A sealing ring (not shown in the figure) is provided at the connection between the through hole 17 and the connecting push rod 13, aiming to prevent the accumulated ash from entering the inside of the main ash pushing plate 11, increasing the weight of the ash pushing device 1 and increasing the ash pushing resistance.
[0032] Furthermore, as shown in Figure 3 , 4 , the cross-section of the front ash-pushing plate 12 is triangular. The steel plates on the front and back sides form a certain oblique angle with the bottom plate of the ash-pushing housing 3. The two V-shaped ends are hermetically and fixedly connected to the main ash-pushing plate 11. In addition to having the ash-pushing function, it can also reduce the resistance of the ash-pushing device 1 in the ash pile.
[0033] Furthermore, as shown in Figure 4 , on both sides of the middle part of the connecting push rod 13, there are reinforcing connecting plates 14. The reinforcing connecting plates 14 are triangular, with the bottom edge facing forward and the vertex facing backward. After installation, the reinforcing connecting plates 14 are located inside the cavity of the main ash-pushing plate 11.
[0034] Furthermore, as shown in Figure 3 , 4 , two guiding and limiting plates 16 are arranged in the front advancing space of the main ash-pushing plate 11. The guiding and limiting plates 16 are right-angled triangular plates, with the right-angled sides against the outer sides, and are respectively installed above both sides of the front ash-pushing plate 12, pressing down the accumulated ash pushed up by the front ash-pushing plate 12 in the middle, and preventing it from accumulating on both sides to avoid situations such as equipment jamming and poor operation.
[0035] Furthermore, as shown in Figure 1 , a guiding device 4 for preventing skew is installed directly above the ash-pushing device 1 inside the ash-pushing housing 3. In this embodiment, the guiding device 4 is a guiding slide rod. A slider 41 is fixedly provided in the middle of the upper end of the main ash-pushing plate 11. The slider 41 is slidably installed on the guiding device 4. The push rod 6 pushes the ash-pushing device 1 to move forward or retract along the guiding device 4, ensuring that the ash-pushing device 1 does not deviate.
[0036] The working principle of the present utility model is as follows: When the driving device 5 is powered on and operates, it pushes out the push rod 6 and drives the ash-pushing device 1 inside the ash-pushing housing 3 to move towards the scraper conveyor 7. During the movement of the ash-pushing device 1, the connecting push rod 13 drives the front ash-pushing plate 12 and the main ash-pushing plate 11 to move towards the scraper conveyor 7. The main ash-pushing plate 11 and the front ash-pushing plate 12 closely adhere to the bottom plate 32 of the ash-pushing housing 3, and the ash-pushing device 1 pushes the ash into the scraper conveyor 7 for ash transportation. When the driving device 5 returns, it retracts the push rod 6, driving the ash-pushing device 1 inside the ash-pushing housing 3. The main ash-pushing plate 11 forms a certain angle with the bottom plate of the ash-pushing housing 3, so that a part of the ash can be flipped to the front of the main ash-pushing plate 11, and the ash is pushed into the scraper conveyor 7 for ash transportation through the next ash-pushing action.
[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A wide-width ash pushing and ash conveying device for a dust collector, characterized in that: It includes a dust pushing device, a sealing base, and a dust pushing housing; The dust pushing housing is fixedly installed below the ash hopper of an external electrostatic precipitator. There is an ash outlet at the front side of the bottom, and a scraper conveyor is arranged inside the ash outlet. The dust pushing device is arranged on the inner bottom plate of the dust pushing housing and includes a main dust pushing plate, a front-end dust pushing plate, and a connecting push rod. The main dust pushing plate is a hollow long straight plate, and the front-end dust pushing plate is a hollow V-shaped plate, fixedly installed on the front end face of the main dust pushing plate with the tip facing forward. There is a through hole in the middle of the main dust pushing plate, and the connecting push rod passes through the main dust pushing plate and is fixedly connected to the V-shaped middle part of the front-end dust pushing plate; The sealing base is installed at the rear side of the dust pushing housing and is provided with a sealing packing seat and a maintenance manhole door. The sealing packing seat is fixedly connected to the dust pushing housing. There are multiple maintenance manhole doors, which are arranged on the side of the sealing base. A push rod is arranged inside the sealing base. At the other end of the sealing base opposite to the sealing packing seat, a driving device is installed. The driving device is provided with a push rod head, and the push rod head is connected to one end of the push rod. The push rod passes through the sealing base and enters the dust pushing housing, and is connected to the connecting push rod inside the dust pushing housing.
2. The wide-width ash pushing and ash conveying device of a dust collector according to claim 1, characterized in that: The cross-section of the main dust pushing plate is trapezoidal, and the angle between the return direction of the rear end face of the main dust pushing plate and the bottom plate of the dust pushing housing is smaller than the angle between the front end face of the dust pushing and the bottom plate of the dust pushing housing.
3. The wide-width ash pushing and ash conveying device of a dust collector according to claim 2, characterized in that: Trapezoidal sealing plates are arranged on both sides of the main dust pushing plate.
4. The wide-width ash pushing and ash conveying device of a dust collector according to claim 1, characterized in that: The cross-section of the front-end dust pushing plate is triangular.
5. The wide-width ash pushing and ash conveying device of a dust collector according to claim 1, characterized in that: Reinforcing connecting plates are arranged on both sides of the middle of the connecting push rod. The reinforcing connecting plates are triangular, with the bottom edge facing forward and the vertex facing backward. After installation, the reinforcing connecting plates are located inside the cavity of the main dust pushing plate.
6. The wide-width ash pushing and ash conveying device of a dust collector according to claim 1, characterized in that: Two guiding and limiting plates are arranged in the advancing space at the front end of the main dust pushing plate. The guiding and limiting plates are right-angled triangular plates, with the right-angled sides against the outer side, and are respectively installed above both sides of the front-end dust pushing plate.
7. The wide-width ash pushing and ash conveying device of a dust collector according to claim 1, characterized in that: A guiding device for preventing skew is installed directly above the dust pushing device inside the dust pushing housing. The guiding device is a guiding slide rod. A slider is fixedly arranged in the middle of the upper end of the main dust pushing plate, and the slider is slidably installed on the guiding device.