Novel fire retardant device

Abstract

The utility model relates to a novel fire retardant device, which belongs to the technical field of coke oven production smoke collection and comprises a shell, an air inlet and an air outlet are arranged on the shell and used for being connected with a ventilation pipeline, a plurality of baffle plates are arranged in the shell, the baffle plates are arranged in a staggered mode, and the baffle plates can change the direction of airflow entering the shell. Dust particles mixed in the airflow are settled in the shell; the lower part of the shell is connected with an ash bucket for collecting dust particles; a plurality of explosion venting devices are further installed on the top plate and the side wall of the shell. The airflow direction is changed through the baffle plate, the airflow passing time is prolonged, dust particles mixed in airflow are settled in the shell, meanwhile, the temperature of the dust particles is reduced, the dust particles are made to roll into the dust barrel through vibration to be collected, the dust particles are prevented from making contact with open fire to cause the deflagration phenomenon, and potential safety hazards are reduced; when detonation occurs in the shell, pressure can be released through the explosion venting device, and damage to rear-end equipment is prevented.

Description

Technical Field

[0001] The utility model relates to a novel fire - blocking device, belonging to the technical field of smoke and dust collection in coke oven production. Background Technique

[0002] At present, during the coking process of a coke oven, it is necessary to collect the high - temperature smoke and dust emitted from the riser pipe. However, since the smoke and dust contain combustible gases and there are high - temperature dust particles in the flue gas, if the concentration of the combustible gas reaches the lower explosion limit and encounters an open flame, deflagration will occur, and then a more violent explosion will occur with the high - temperature dust particles, posing a great potential safety hazard. Content of the Utility Model

[0003] Based on the above deficiencies in the prior art, the technical problem to be solved by the utility model is: to provide a novel fire - blocking device that can collect the high - temperature dust particles in the smoke and dust, cool down the dust particles, and prevent the explosion phenomenon caused by the dust particles contacting an open flame.

[0004] The novel fire - blocking device described in the utility model includes a housing. The housing is provided with an air inlet and an air outlet for connecting ventilation pipes. Inside the housing, there are several baffle plates, and the baffle plates are arranged staggeredly. The baffle plates can change the direction of the air flow entering the housing, reduce the air flow velocity, extend the passing time of the air flow, and enable the dust particles mixed in the air flow to settle in the housing. A dust bucket for collecting dust particles is connected below the housing. Multiple explosion - venting devices are also installed on the top plate and side walls of the housing. When deflagration occurs inside the housing, the internal pressure is released through the explosion - venting devices.

[0005] The technical solution of the utility model is to provide a novel fire - blocking device. By changing the direction of the air flow with baffle plates, reducing the air flow velocity, and extending the passing time of the air flow, the dust particles mixed in the air flow settle in the housing. When deflagration occurs inside the housing, the pressure is released through the explosion - venting devices.

[0006] Preferably, a partition is provided inside the housing, and the partition divides the housing into two connected chambers.

[0007] Furthermore, the baffle plates are staggeredly fixed on the inner wall of the housing and the partition. The non - fixed ends of the baffle plates are inclined downward so as to facilitate the settled particulate matter to roll down into the dust bucket by its own weight.

[0008] Preferably, the housing is also provided with an explosion - venting device installation port for installing the explosion - venting device. The explosion - venting device includes an explosion - venting seat and an explosion - venting plate. The explosion - venting seat is hinged to the explosion - venting plate. The explosion - venting seat is connected to the explosion - venting device installation port by bolts. A counterweight is provided on the explosion - venting plate, and a sealing strip is installed on the contact surface between the explosion - venting plate and the explosion - venting seat. During normal use, the counterweight presses the explosion - venting plate tightly on the explosion - venting seat. When deflagration occurs, the strong pressure pushes the explosion - venting plate away, enabling the pressure to be released quickly.

[0009] Preferably, a conical ash hopper is provided below the housing, and a vibrator is installed on the ash hopper to accelerate the dropping of the sedimented particulate matter and prevent the dust from caking.

[0010] Preferably, legs are provided at the four corners of the housing, and springs are connected to the bottoms of the legs to cooperate with the vibrator to enable the entire device to vibrate slightly up and down.

[0011] The beneficial effects of the present utility model compared with the prior art are as follows:

[0012] For the novel fire prevention device of the present utility model, the flow direction of the air flow is changed by the baffle plate, the flow velocity of the air flow is reduced, the passing time of the air flow is prolonged, so that the dust particles mixed in the air flow settle in the housing. At the same time, the temperature of the dust particles is reduced, and then the dust particles roll down to the ash bucket for collection through vibration, preventing the dust particles from contacting open flames and causing deflagration, and reducing potential safety hazards; when deflagration occurs inside the housing, the pressure can be released through the explosion venting device to prevent damage to the subsequent equipment. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a cross-sectional view of the housing;

[0015] Figure 3 is a schematic structural diagram of the explosion venting device.

[0016] In the figure: 1, housing; 11, air inlet; 12, installation opening for explosion venting device; 13, partition; 14, air outlet; 15, spring; 16, leg; 17, baffle plate; 2, explosion venting device; 21, explosion venting seat; 22, explosion venting plate; 3, vibrator; 4, ash bucket. Detailed Embodiments

[0017] The following further describes the present utility model with reference to specific embodiments.

[0018] However, the description of the present utility model is only an embodiment of the structural and functional descriptions. The scope of the rights of the present utility model is not limited by the embodiments described in the text.

[0019] For example, multiple embodiments can have various changes and various forms. It should be understood that the scope of the rights of the present utility model includes equivalents that can implement the technical idea.

[0020] Such as Figures 1 to 3As shown in the figure, this embodiment is implemented through the following technical solutions: It includes a housing 1, on which there are an air inlet 11 and an air outlet 14 for connecting ventilation ducts. Inside the housing 1, there are several baffle plates 17, and the baffle plates 17 are arranged staggeredly. The baffle plates 17 can change the direction of the air flow entering the housing 1, reduce the air flow velocity, extend the passing time of the air flow, and cause the dust particles mixed in the air flow to settle inside the housing 1. A dust bucket 4 for collecting dust particles is connected below the housing 1. Three explosion venting devices 2 are also installed on the top plate and side walls of the housing 1. When deflagration occurs inside the housing 1, the internal pressure is released through the explosion venting devices 2.

[0021] In this embodiment, a partition plate 13 is provided inside the housing 1. The partition plate 13 divides the housing 1 into two connected chambers to increase the flow distance of the air flow inside the housing. The baffle plates 17 are staggeredly fixed on the inner wall of the housing 1 and the partition plate 13. The non-fixed ends of the baffle plates 17 are inclined downward so that the settled particulate matter can roll down into the dust bucket 4 by its own weight.

[0022] An explosion venting device installation opening 12 is also provided on the housing 1 for installing the explosion venting device 2. The explosion venting device 2 includes an explosion venting seat 21 and an explosion venting plate 22. The explosion venting seat 21 is hinged to the explosion venting plate 22. The explosion venting seat 21 is connected to the explosion venting device installation opening 12 by bolts. A counterweight is provided on the explosion venting plate 22, and a sealing strip is installed on the contact surface between the explosion venting plate 22 and the explosion venting seat 21. During normal use, the counterweight presses the explosion venting plate 22 tightly on the explosion venting seat 21. When deflagration occurs, the strong pressure pushes the explosion venting plate 22 open to quickly release the pressure. A conical ash hopper is provided below the housing 1, and a vibrator 3 is installed on the ash hopper to accelerate the falling of the settled particulate matter and prevent dust caking. Support legs 16 are provided at the four corners of the housing 1, and springs 15 are connected to the bottoms of the support legs 16 to cooperate with the vibrator 3 to enable the entire device to vibrate slightly up and down.

[0023] The working principle of the present utility model is as follows: The air flow containing dust particles enters the inside of the housing 1 from the air inlet 11, passes through the two chambers of the housing, and finally is discharged from the air outlet 14.

[0024] During the process of passing through the chambers, under the blocking action of the baffle plates 17, the direction is continuously changed, the air flow velocity decreases accordingly, the dust particles settle on the baffle plates 17. Some of the dust particles continuously roll down into the lower dust bucket 4 under the action of gravity, and some of the dust particles roll down into the dust bucket 4 under the action of the vibrator 3.

[0025] When deflagration occurs inside the housing 1, the strong pressure pushes the explosion venting plate 22 open to quickly release the pressure.

[0026] Of course, the above is only a preferred embodiment of the present utility model and cannot be considered as limiting the scope of the embodiments of the present utility model. The present utility model is not limited to the above examples either. Equivalent changes and improvements made by those of ordinary skill in the art within the essence of the present utility model shall fall within the scope covered by the patent of the present utility model.

Claims

1. A novel fire - blocking device, characterized in that, It includes a housing (1) with an air inlet (11) and an air outlet (14) for connecting ventilation ducts provided thereon. Inside the housing (1), there are several baffle plates (17) which are arranged staggeredly; a dust bucket (4) for collecting dust particles is connected below the housing (1); multiple explosion venting devices (2) are also installed on the top plate and side walls of the housing (1); legs (16) are provided at the four corners of the housing (1), and springs (15) are connected to the bottoms of the legs (16).

2. The novel fire-blocking device according to claim 1, wherein, A partition plate (13) is provided inside the housing (1), and the partition plate (13) divides the housing (1) into two communicating chambers.

3. The novel fire retardant device according to claim 2, characterized in that, The baffle plates (17) are staggeredly fixed to the inner wall of the housing (1) and the partition plate (13), and the non-fixed ends of the baffle plates (17) are inclined downward.

4. The novel fire-blocking device according to claim 1, characterized in that, An explosion venting device installation opening (12) is provided on the housing (1); the explosion venting device (2) includes an explosion venting seat (21) and an explosion venting plate (22). The explosion venting seat (21) is hinged to the explosion venting plate (22), the explosion venting seat (21) is connected to the explosion venting device installation opening (12) by bolts, a counterweight is provided on the explosion venting plate (22), and a sealing strip is installed on the contact surface between the explosion venting plate (22) and the explosion venting seat (21).

5. The novel fire-blocking device according to claim 1, wherein, A conical ash hopper is provided below the housing (1), and a vibrator (3) is installed on the ash hopper.

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