Dust discharging equipment of electric precipitation suction and exhaust vehicle
By designing an electrostatic precipitator suction truck for ash removal, and utilizing a sealed path and negative pressure suction, the problem of dust pollution affecting the environment and health has been solved, achieving a safe and efficient ash removal process.
Patent Information
- Application Number
- CN202423044653.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In the current electrostatic precipitator ash removal process, the ash comes into contact with the air, generating a large amount of dust, which pollutes the environment and endangers the health of operators.
An electrostatic precipitator suction and discharge vehicle ash unloading device was designed, including an inclined insertion pipe, an ash unloading pipe, a connecting pipe, a venturi tube, a metal flexible hose, and various valves, forming a sealed ash unloading path. By utilizing gravity, the negative pressure suction of the suction and discharge vehicle, and the siphon effect of the venturi tube, the entire ash unloading process in the ash silo is ensured to be sealed and leakage is avoided.
This technology prevents dust from leaking into the environment during the ash removal process, protects operator health, and improves ash removal efficiency.
Smart Images
Figure CN223619754U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrostatic precipitator ash removal technology for sintering machine heads, and in particular to an electrostatic precipitator suction and discharge vehicle ash removal device. Background Technology
[0002] Currently, most steel manufacturing enterprises in China use electrostatic precipitators (ESPs) in their sintering workshops. Because the sintering raw materials contain sulfur, the waste gas and dust generated after sintering are directly discharged, causing serious harm to human health and severely polluting the environment. Therefore, they must be treated by ESPs. The ash from the ESP rapping process is stored in an ash silo and requires regular cleaning.
[0003] The existing electrostatic precipitator ash unloading process involves humidifying the dust in the ash hopper before discharging it directly into the truck bed. This unloading method causes the ash to come into direct contact with the air, generating a large amount of dust, which pollutes the environment and endangers the health of the ash unloading operators. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose an electrostatic precipitator suction and exhaust vehicle ash unloading device to solve the problem that when ash comes into contact with air during ash unloading, it will generate a large amount of dust and pollute the environment.
[0005] To achieve the above objectives, this utility model provides an electrostatic precipitator suction and discharge vehicle ash unloading device, including an ash hopper and a suction and discharge vehicle, and the electrostatic precipitator suction and discharge vehicle ash unloading device further includes:
[0006] The inclined pipe, ash discharge pipe, connecting pipe, and metal flexible hose are sequentially installed between the ash silo and the suction and discharge vehicle.
[0007] A venturi tube is installed between the connecting pipe and the ash discharge pipe. The venturi tube is used to connect to the outside world and stabilize the air pressure between the ash silo and the suction and discharge vehicle.
[0008] Preferably, the electrostatic precipitator suction and discharge vehicle ash unloading equipment further includes a plate valve, a square-to-round valve, and an ash discharge valve arranged sequentially between the inclined insertion pipe and the ash unloading pipe.
[0009] Preferably, the square-to-circular joint is fixedly connected to the slide gate valve and the ash discharge valve via a sealing flange, and the square-to-circular joint is used to connect the square outlet of the slide gate valve and the circular inlet of the ash discharge valve.
[0010] Preferably, the electrostatic precipitator suction and discharge vehicle ash unloading equipment further includes a reducing connector fixedly disposed between the ash unloading pipe and the venturi pipe, the reducing connector being used to connect the ash unloading pipe and the venturi pipe with different inner diameters.
[0011] Preferably, the electrostatic precipitator suction and ash removal equipment further includes an air inlet located on the Venturi tube at the end away from the connecting pipe, the air inlet being used to control the connection between the Venturi tube and the outside world.
[0012] Preferably, the air intake component includes an outer connecting pipe connected to the venturi tube at the end away from the connecting pipe, and the outer connecting pipe is provided with a sealing valve.
[0013] Preferably, the ash unloading equipment of the electrostatic precipitator suction truck further includes an ash unloading ball valve disposed between the connecting pipe and the metal hose, the ash unloading ball valve being used to control the on / off connection between the connecting pipe and the metal hose.
[0014] Preferably, one end of the metal hose is detachably installed on the air inlet of the suction and exhaust vehicle, and the inlet and outlet of the ash discharge ball valve are respectively fixedly installed on one end face of the connecting pipe and the metal hose through a fixing flange.
[0015] Preferably, the electrostatic precipitator suction and discharge vehicle ash unloading equipment further includes two unblocking components respectively located at the top of the ash unloading pipe and the outside of the venturi pipe near the air inlet.
[0016] The beneficial effects of this utility model are:
[0017] This invention utilizes a combination of a top-to-bottom arrangement of an inclined insertion pipe, an ash discharge pipe, a venturi pipe, a connecting pipe, a metal flexible hose, and various valves. The metal flexible hose is connected to the suction and discharge vehicle, and the air inlet of the venturi pipe is opened, creating a sealed ash discharge path between the ash silo and the suction and discharge vehicle. This prevents ash leakage into the environment during ash discharge, thus avoiding dust pollution and harm to the health of ash discharge operators. Furthermore, the invention leverages gravity, the negative pressure suction generated by the suction and discharge vehicle, and the siphon effect created by the venturi pipe to increase the airflow velocity into the ash silo, thereby increasing the ash discharge rate and improving ash discharge efficiency. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is the front view of the present invention;
[0020] Figure 2 This is a partial front view of the present invention;
[0021] Figure 3 This is a partial right view of the present invention.
[0022] The diagram is marked as follows:
[0023] 1. Inclined insertion pipe; 2. Ash discharge pipe; 3. Connecting pipe; 4. Metal flexible hose; 5. Venturi tube; 6. Slide valve; 7. Square to round joint; 8. Ash discharge valve; 9. Reducing fitting; 10. Air inlet fitting; 101. External pipe; 102. Sealing valve; 11. Ash discharge ball valve; 12. Unblocking fitting. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0025] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0026] like Figures 1 to 3 As shown, an electrostatic precipitator (ESP) dust collection and unloading vehicle ash disposal device includes an ash hopper and a suction and unloading vehicle. The ESP dust collection and unloading vehicle ash disposal device further includes:
[0027] The inclined pipe 1, ash discharge pipe 2, connecting pipe 3, and metal hose 4 are sequentially arranged between the ash silo and the suction and discharge vehicle. This design allows the vacuum pump on the suction and discharge vehicle to sequentially extract air from the metal hose 4, connecting pipe 3, ash discharge pipe 2, and inclined pipe 1, creating a pressure difference between the four components and the ash silo. This draws the ash from the ash silo into the suction and discharge vehicle, and ensures that the ash flow path is completely sealed, preventing leakage to the outside world and thus avoiding environmental pollution and harm to the health of the ash discharge operators.
[0028] The Venturi tube 5 is located between the connecting pipe 3 and the ash discharge pipe 2. The Venturi tube 5 is used to connect to the outside and stabilize the air pressure between the ash silo and the suction and discharge vehicle. When the suction and discharge vehicle extracts ash from the ash silo, it can connect to the outside through the Venturi tube to allow outside air to flow in, stabilize the air pressure difference between the suction and discharge vehicle and the ash silo, and prevent the suction and discharge vehicle from drawing a vacuum between the vehicle and the ash silo, thus preventing the ash from being discharged.
[0029] like Figures 1 to 3As shown, the ash unloading equipment of the electrostatic precipitator suction truck also includes a slide valve 6, a square-to-circular joint 7 and an ash discharge valve 8, which are arranged sequentially between the inclined insertion pipe 1 and the ash discharge pipe 2. The slide valve 6 is used to prevent dust backflow or overload and ensure the stability of the ash unloading operation, while the ash discharge valve 8 can discharge ash quantitatively and continuously.
[0030] The square-to-circular joint 7 is fixedly connected to the slide gate valve 6 and the ash discharge valve 8 via a sealing flange, and the square-to-circular joint 7 is used to connect the square outlet of the slide gate valve 6 and the circular inlet of the ash discharge valve 8.
[0031] like Figures 1 to 3 As shown, the ash removal equipment of the electrostatic precipitator suction truck also includes a reducing connector 9 fixedly installed between the ash removal pipe 2 and the venturi tube 5. The reducing connector 9 is used to connect the ash removal pipe 2 and the venturi tube 5 with different inner diameters. Since the two ends of the venturi tube 5 are a conical groove and a cylindrical groove respectively, the minimum inner diameter of the conical groove is equal to the inner diameter of the cylindrical groove, and the boundary of the minimum diameter of the conical groove coincides with the boundary of the cylindrical groove, the connection between the ash removal pipe 2 and the venturi tube 5 is set between the two ends of the venturi tube 5 outside, so that the dust can flow vertically into the cylindrical groove inside the venturi tube 5, and the airflow from the conical groove to the cylindrical groove will accelerate the airflow speed, so as to carry the dust into the suction truck and improve the smoothness of the dust flow in the venturi tube 5.
[0032] like Figure 1 and Figure 2 As shown, the ash unloading equipment of the electrostatic precipitator suction truck also includes an air inlet 10 located on the Venturi tube 5 at the end away from the connecting pipe 3. The air inlet 10 is used to control the connection and disconnection between the Venturi tube 5 and the outside world.
[0033] The air intake component 10 includes an outer pipe 101 connected to the end of the venturi tube 5 away from the connecting pipe 3. The outer pipe 101 is equipped with a sealing valve 102. When unloading ash, the sealing valve 102 is opened, so that outside air flows into the venturi tube 5 under the suction of the suction and discharge vehicle, maintaining the air pressure between the ash hopper and the suction and discharge vehicle, and preventing the ash hopper and the suction and discharge vehicle from being sucked into a vacuum state, thus making it impossible to unload ash.
[0034] like Figures 1 to 3 As shown, the ash unloading equipment of the electrostatic precipitator suction truck also includes an ash unloading ball valve 11 located between the connecting pipe 3 and the metal hose 4. The ash unloading ball valve 11 is used to control the on / off connection between the connecting pipe 3 and the metal hose 4.
[0035] One end of the metal hose 4 can be detachably installed on the air inlet of the suction and exhaust vehicle. This design facilitates the efficient replacement of the suction and exhaust vehicle. The inlet and outlet of the ash discharge ball valve 11 are fixedly installed on one end face of the connecting pipe 3 and the metal hose 4 respectively through fixed flanges.
[0036] like Figures 1 to 3As shown, the ash unloading equipment of the electrostatic precipitator suction truck also includes two unblocking components 12, which are respectively located at the top of the ash unloading pipe 2 and the outside of the venturi pipe 5 near the air inlet 10. The unblocking component 12 includes a high-pressure air pump and a three-way pipe located at the output end of the high-pressure air pump. The remaining two ends of the three-way pipe are respectively connected to the venturi pipe 5 and the ash unloading pipe 2. Sealing ball valves are provided at both ends of the three-way pipe near the ash unloading pipe 2 and the venturi pipe 5. When the ash unloading pipe 2 or the venturi pipe 5 is blocked and cannot unload ash, the high-pressure air pump is started and the corresponding sealing ball valve is opened, so that the high-pressure air pump continuously pressurizes the ash unloading pipe 2 or the venturi pipe 5. The high pressure blows away the dust blocking the ash unloading pipe 2 or the venturi pipe 5, achieving the effect of unblocking. After unblocking, the sealing ball valve is closed. Both sealing ball valves are in the closed state during normal ash unloading to avoid affecting normal ash unloading.
[0037] Working principle: When the ash silo is full and needs to be unloaded, the suction and discharge vehicle is parked in the designated position. Then, the metal hose 4 is connected to the suction and discharge vehicle. After the metal hose 4 is connected, the gate valve 6, the ash discharge valve 8, and the ash discharge ball valve 11 are opened in sequence. This allows the ash in the ash silo to flow through the inclined pipe 1, the ash discharge pipe 2, the venturi pipe 5, the connecting pipe 3, and the metal hose 4 in sequence, and finally be transported to the ash tank on the suction and discharge vehicle. During ash unloading, the venturi pipe 5 is opened, connecting one end to the outside and the other end to the connecting pipe 3. This prevents the suction and discharge vehicle from creating a vacuum between the inclined pipe 1 and the metal hose 4 during ash suction, which would prevent ash unloading. This ensures that the ash silo remains sealed throughout the entire process. The ash discharge is completed in a sealed state to prevent ash leakage into the environment and pollution, and to prevent ash from harming the health of the ash discharge operators. If ash becomes blocked between the ash discharge valve 8 and the venturi tube 5 during the ash discharge process, the sealing ball valve at the top of the ash discharge pipe 2 is opened, allowing the high-pressure air pump to fill the ash discharge pipe 2 with high-pressure gas to clear the blockage. If ash becomes blocked in the venturi tube 5, the sealing ball valve on the venturi tube 5 is opened, allowing the high-pressure air pump to fill the venturi tube 5 with high-pressure gas to clear the blockage. After that, ash discharge can continue. When the ash discharge is smooth, both sealing ball valves are closed.
[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0039] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An electrostatic precipitator suction and discharge vehicle ash unloading device, comprising an ash hopper and a suction and discharge vehicle, characterized in that, The electrostatic precipitator suction and ash removal vehicle also includes: The inclined insertion pipe (1), ash discharge pipe (2), connecting pipe (3) and metal flexible hose (4) are sequentially installed between the ash silo and the suction and discharge vehicle; A venturi tube (5) is provided between the connecting pipe (3) and the ash discharge pipe (2). The venturi tube (5) is used to connect to the outside world and stabilize the air pressure between the ash silo and the suction and discharge vehicle.
2. The electrostatic precipitator suction and unloading equipment according to claim 1, characterized in that, The ash removal equipment of the electrostatic precipitator suction truck also includes a slide valve (6), a square-to-round valve (7), and an ash discharge valve (8) arranged sequentially between the inclined insertion pipe (1) and the ash discharge pipe (2).
3. The electrostatic precipitator suction and unloading equipment for ash removal according to claim 2, characterized in that, The square-to-circular joint (7) is fixedly connected to the slide gate valve (6) and the ash discharge valve (8) through a sealing flange, and the square-to-circular joint (7) is used to connect the square outlet of the slide gate valve (6) and the circular inlet of the ash discharge valve (8).
4. The electrostatic precipitator suction and unloading equipment according to claim 3, characterized in that, The electrostatic precipitator suction and discharge vehicle ash unloading equipment also includes a reducing connector (9) fixed between the ash unloading pipe (2) and the venturi pipe (5), the reducing connector (9) being used to connect the ash unloading pipe (2) and the venturi pipe (5) with different inner diameters.
5. The electrostatic precipitator suction and unloading equipment according to claim 4, characterized in that, The electrostatic precipitator suction and ash removal equipment also includes an air inlet (10) located on the Venturi tube (5) at the end away from the connecting pipe (3), and the air inlet (10) is used to control the connection and disconnection between the Venturi tube (5) and the outside world.
6. The electrostatic precipitator suction and unloading equipment according to claim 5, characterized in that, The air intake component (10) includes an external pipe (101) connected to the venturi tube (5) at the end away from the connecting pipe (3), and a sealing valve (102) is provided on the external pipe (101).
7. The electrostatic precipitator suction and unloading equipment for ash removal according to claim 6, characterized in that, The ash removal equipment of the electrostatic precipitator suction truck also includes an ash removal ball valve (11) located between the connecting pipe (3) and the metal hose (4), and the ash removal ball valve (11) is used to control the opening and closing between the connecting pipe (3) and the metal hose (4).
8. The electrostatic precipitator suction and unloading equipment for ash removal according to claim 7, characterized in that, One end of the metal hose (4) can be detachably installed on the air inlet of the suction and exhaust vehicle. The inlet and outlet of the ash discharge ball valve (11) are respectively fixedly installed on one end face of the connecting pipe (3) and the metal hose (4) through fixed flanges.
9. The electrostatic precipitator suction and unloading equipment for ash removal according to claim 8, characterized in that, The electrostatic precipitator suction and discharge vehicle ash unloading equipment also includes two unblocking parts (12) respectively located at the top of the ash unloading pipe (2) and the outside of the venturi pipe (5) near the end of the air inlet (10).