Multifunctional explosion venting device
By designing a multi-functional explosion relief device, the rupture discs of the coal chutes and detonating branch pipes are used to isolate the ignition source, solving the problem that traditional explosion relief devices cannot simultaneously perform both explosion relief and detonation. This achieves safe explosion relief and detonation in the pulverized coal silo, ensuring the safety of equipment and personnel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional explosion venting devices cannot simultaneously achieve both explosion venting and detonation functions, and pulverized coal silos do not meet the requirements for installing coal chutes, leading to frequent spontaneous combustion and explosion problems in pulverized coal silos.
Design a multi-functional explosion relief device, including a coal chuting pipe, a detonating branch pipe, and a detonating main pipe. The device isolates the ignition source during welding by setting up rupture discs, and guides the gas to a safe area to be discharged during an explosion, thus having both explosion relief and detonation functions.
It effectively avoids the explosion risk during the welding of pulverized coal silos, ensures the safe discharge of explosive gases, and achieves the dual functions of explosion venting and detonation, protecting the safety of equipment and operators.
Smart Images
Figure CN224029836U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pulverized coal storage technology, and in particular to a multifunctional explosion relief device. Background Technology
[0002] Coal pulverizer silos, as important coal storage facilities, are widely used in many domestic production enterprises, such as power plants, coal chemical plants, cement plants, and iron and steel metallurgy. With the development and expansion of coal pulverizer preparation technology and the market, the application of coal pulverizer silos is becoming more and more widespread. However, spontaneous combustion and explosion problems occur from time to time. Traditional explosion relief pipes cannot achieve the functions of explosion relief and detonation while also serving as coal chutes. Moreover, the coal pulverizer silos currently in use do not meet the conditions for installing coal chutes. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a multifunctional explosion relief device to solve the problem that existing pulverized coal silos do not have the conditions to install coal chutes, thus failing to achieve both explosion relief and detonation functions simultaneously.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A multifunctional explosion relief device includes a coal chuting pipe, the inlet of which is connected to the flange of the chuting port of a bag filter dust collector, and the outlet of which is connected to a second detonating branch pipe. The second detonating branch pipe is installed on the upper part of the coal powder silo via a rupture disc, and a rupture disc is provided at the connection between the second detonating branch pipe and the detonating main pipe.
[0006] The detonating cord is set horizontally, with one end sealed by a blind flange and the other end leading to a safe outdoor area. A first detonating branch is provided on one side of the detonating cord, which is installed on the upper part of the pulverized coal silo via a rupture disc. A vent hole is provided on the bag filter.
[0007] The beneficial effects of this utility model are: when installing the coal chute, the rupture disc isolates the connection between the ignition part of the coal chute and the inside of the coal powder silo, thus preventing an explosion. After installation, the rupture disc between the coal chute and the coal powder silo is removed. When the coal powder silo explodes, the gas generated by the explosion breaks through the rupture disc on the detonating branch pipe and is discharged to the outside through the detonating main pipe or the vent hole of the bag filter. Attached Figure Description
[0008] Figure 1 This is a front view of the overall structure of this utility model;
[0009] Figure 2 This is a side view of the present invention.
[0010] Attached reference numerals: 01 Detonating branch pipe, 02 Detonating main pipe, 03 Rupture disc, 04 Coal drop pipe, 05 Powdered coal bin, 06 Bag filter dust collector. Detailed Implementation
[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0012] 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 and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0013] like Figure 1 , Figure 2 As shown, a multi-functional explosion relief device includes a coal chuting pipe 04. The inlet of the coal chuting pipe 04 is connected to the flange of the discharge port of the bag filter 06, and the outlet is connected to the second detonating branch pipe 01-2. The second detonating branch pipe 01-2 is installed on the upper part of the coal powder silo 05 through a rupture disc 03. A rupture disc 03 is provided at the connection between the second detonating branch pipe 01-2 and the detonating main pipe 02.
[0014] like Figure 1 , Figure 2 As shown, the detonating cord 02 is horizontally installed. One end of the detonating cord 02 is sealed with a blind flange, and the other end leads to a safe outdoor area. A first detonating branch 01-1 is provided on one side of the detonating cord 02. The first detonating branch 01-1 is installed on the upper part of the coal powder silo 05 through a rupture disc 03. A vent hole is provided on the bag filter 06.
[0015] In use, this utility model has multiple sets of detonating pipes on the pulverized coal silo 05. The detonating main pipe 02 is horizontally arranged. A first detonating branch pipe 01-1 is provided on one side of the bottom of the detonating main pipe 02. A rupture disc 03 is provided at the connection between the first detonating branch pipe 01-1 and the upper flange of the pulverized coal silo 05. A second detonating branch pipe 01-2 is provided on the other side of the detonating main pipe 02. A rupture disc 03 is provided at the connection between the detonating main pipe 02 and the second detonating branch pipe 01-2. A coal falling pipe 04 is provided on the second detonating branch pipe 01-2. The top of the coal falling pipe 04 is connected to the flange of the material falling port of the bag filter 06. A rupture disc 03 is provided at the connection between the lower end of the second detonating branch pipe 01-2 and the upper flange of the pulverized coal silo 05.
[0016] When welding the coal drop pipe 04, the rupture disc 03 at the connection between the lower end of the second detonating branch pipe 01-2 and the pulverized coal silo 05 isolates the pulverized coal silo 05 from contact with the outside environment to prevent pulverized coal explosion during welding. After welding, the rupture disc 03 at the connection between the lower end of the second detonating branch pipe 01-2 and the pulverized coal silo 05 is removed, while the rupture disc 03 at the connection between the detonating main pipe 02 and the second detonating branch pipe 01-2 is retained. When an explosion occurs, the rupture disc on the detonating branch pipe 01 is first destroyed by the explosive gas. The explosive gas is then discharged to a safe outdoor area through each detonating branch pipe from the detonating main pipe. Some of the explosive gas is discharged through the vent hole on the bag filter 06 via the coal drop pipe 04.
[0017] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A multifunctional explosion venting device, characterized in that, It includes a coal chutes (04), the inlet of which is connected to the flange of the chutes of the bag filter (06), and the outlet is connected to the second detonating branch pipe (01-2). The second detonating branch pipe (01-2) is installed on the upper part of the coal powder bin (05) through a rupture disc (03). A rupture disc (03) is provided at the connection between the second detonating branch pipe (01-2) and the detonating main pipe (02).
2. The multifunctional explosion relief device according to claim 1, characterized in that, The detonating main pipe (02) is set horizontally. One end of the detonating main pipe (02) is sealed with a blind plate, and the other end leads to a safe outdoor area. A first detonating branch pipe (01-1) is provided on one side of the detonating main pipe (02). The first detonating branch pipe (01-1) is installed on the upper part of the coal powder silo (05) through a rupture disc (03). A vent hole is provided on the bag filter (06).