Front-end fire catching device of welding fume purifier

Abstract

The utility model relates to the field of fire catching devices, in particular to a welding fume purifier front end fire catching device which comprises a welding fume purifier, one end of the welding fume purifier is fixedly provided with an opening and closing handle, one side of the welding fume purifier is provided with heat dissipation holes, and the top of the welding fume purifier is provided with a fixed end. The top of the fixed end is movably connected with the connecting end of the spark catcher through a connecting pipe, and the other end of the spark catcher is connected with a separation bin through a connecting flange. According to the welding fume collecting device, firstly, welding fume generated by the welding fume purifier during welding is collected and transmitted into the spark catcher through the connecting pipe, sparks in the welding fume are shunted through rotation of the impeller in the spark catcher, dust exists as the sparks, and the dust is prevented from entering the spark catcher. Dust passes through the activated carbon adsorption layer in the dust collection bin and the filter screen, then reaches the dust collection groove in the bottom and is attached to the adsorption rubber layer on the dust collection groove, and the dust is prevented from flying all around.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-catching devices, in particular to a fire-catching device at the front end of a welding fume purifier. Background Technique

[0002] Welding fume purifiers are used for the purification of smoke and dust generated in processes such as welding, cutting, and grinding, as well as the recovery of rare metals and precious materials. They can purify a large number of tiny metal particles suspended in the air that are harmful to the human body. They have the characteristics of high purification efficiency, low noise, flexible use, and small floor area. They are applicable to workplaces where smoke is generated during operations such as manual welding, arc welding, carbon dioxide shielded welding, MAG welding, carbon arc air gouging welding, gas fusion cutting, and special welding. The main components of the equipment include: a universal dust suction arm, a high-temperature dust suction hose, a dust suction hood (with an air volume regulating valve), a fire prevention net, a flame-retardant and high-efficiency filter element, casters with brakes, a fan, a Huali motor, a pulse solenoid valve, etc.

[0003] The spark arrester is a special device to prevent the cloth bags of the bag filter of a biomass boiler from catching fire. There are many biomass bag boilers whose bag filters are repeatedly burned. The reason is that there are often unburned fuel particles in the biomass flue gas. These unburned particles are sparks. Once they enter the bag filter along with the flue gas, they will ignite the dust attached to the dust removal cloth bag, thus igniting the entire dust removal cloth bag and burning it out.

[0004] The existing welding fume purifiers mainly absorb the flue gas with sparks. Then, after connecting the spark arrester, the dust inside needs to be collected. However, after collecting through the spark arrester and collecting it in the dust collection bin, it is easy to cause dust to fly, resulting in the purifier not being able to purify the welding fume cleanly. Content of the Utility Model

[0005] The purpose of the utility model is to solve the defects existing in the prior art, and a fire-catching device at the front end of a welding fume purifier is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A fire-catching device at the front end of a welding fume purifier includes a welding fume purifier. One end of the welding fume purifier is fixedly installed with an opening and closing handle, and a heat dissipation hole is opened on one side of the welding fume purifier. And a fixed end is arranged at the top of the welding fume purifier.

[0008] The top of the fixed end is movably connected to the connection end of the spark arrester through a connecting pipe, and the other end of the spark arrester is connected to a separation chamber through a connecting flange.

[0009] In addition, the preferred structure is that the separation chamber is a hollow structure, and metal baffles are arranged in the separation chamber and are staggered and pasted.

[0010] In addition, a preferred structure is that a dust collecting bin is fixedly installed at the bottom of the separation bin, an activated carbon adsorption layer is arranged inside the dust collecting bin, a filter screen is arranged at the bottom of the activated carbon adsorption layer, and a dust collecting groove is opened at the bottom of the filter screen.

[0011] In addition, a preferred structure is that an exhaust port is provided at the other end of the separation bin, and a guide plate is provided at the other end of the exhaust port.

[0012] In addition, a preferred structure is that the spark arrester has a shape in which the aperture increases continuously from the connecting end to the connecting flange.

[0013] In addition, a preferred structure is that the bottom of the dust collecting groove is an inverted trapezoid, and an adsorption rubber layer is provided on the surface of the dust collecting groove.

[0014] In addition, a preferred structure is that a positioning rod is provided at the bottom of the separation bin, a torsion spring is passed through the bottom of the positioning rod, and a connecting hole is opened at the top of the dust collecting bin, and the positioning rods are adapted to each other.

[0015] The beneficial effects of the utility model are as follows: first, the welding smoke purifier collects the welding smoke generated during welding, and transmits it to the spark arrestor through the connecting pipe, and the rotation of the impeller in the spark arrestor diverts the sparks in the welding smoke, and the sparks are dust. The dust passes through the activated carbon adsorption layer in the dust collecting bin and the filter net to reach the dust collecting groove at the bottom, and is attached to the adsorption rubber layer on the dust collecting groove to prevent the dust from flying around. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the assembly structure of a front-end fire catching device of a welding smoke purifier proposed by the utility model;

[0017] Figure 2 This is an axonometric diagram of the spark arrester proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of a connection structure of a separation bin proposed by the utility model;

[0019] Figure 4 This is a technical schematic diagram of the interior of the dust collection bin proposed by the utility model;

[0020] Figure 5 It is a schematic diagram of the explosion structure of the dust collecting bin proposed in the utility model.

[0021] In the figure: 1, Welding fume purifier; 2, Opening and closing handle; 3, Heat dissipation holes; 4, Fixed end; 5, Connecting pipe; 6, Connecting end; 7, Spark arrester; 8, Connecting flange; 9, Separation chamber; 91, Metal baffle; 92, Positioning rod; 93, Torsion spring; 10, Exhaust chamber; 11, Deflector; 12, Dust collection chamber; 1201, Activated carbon adsorption layer; 1202, Filter screen; 1203, Dust collection groove; 1204, Adsorption rubber layer; 1205, Connecting hole. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Refer to Figures 1-4 , A front-end fire-catching device for a welding fume purifier, including a welding fume purifier 1, one end of the welding fume purifier 1 is fixedly installed with an opening and closing handle 2, and one side of the welding fume purifier 1 is provided with heat dissipation holes 3, and the top of the welding fume purifier 1 is provided with a fixed end 4;

[0024] The top of the fixed end 4 is movably connected to the connecting end 6 of the spark arrester 7 through a connecting pipe 5, and the other end of the spark arrester 7 is connected to a separation chamber 9 through a connecting flange 8.

[0025] Among them, the separation chamber 9 is a hollow structure, and a metal baffle 91 is provided in the separation chamber 9, and the metal baffles 91 are arranged in an interleaved manner. The metal baffle 91 can extinguish the sparks in time and form dust.

[0026] Moreover, the bottom of the separation chamber 9 is fixedly installed with a dust collection chamber 12, and an activated carbon adsorption layer 1201 is arranged inside the dust collection chamber 12, and a filter screen 1202 is arranged at the bottom of the activated carbon adsorption layer 1201, and a dust collection groove 1203 is opened at the bottom of the filter screen 1202.

[0027] In addition, the other end of the separation chamber 9 is provided with an exhaust port 10, the other end of the exhaust port 10 is provided with a deflector 11, and the shape of the spark arrester 7 is such that the aperture from the connecting end 6 to the connecting flange 8 increases continuously.

[0028] Furthermore, the bottom of the dust collection groove 1203 is trapezoidal, and an adsorption rubber layer 1204 is arranged on the surface of the dust collection groove 1203.

[0029] A positioning rod 92 is arranged at the bottom of the separation chamber 9, a torsion spring 93 is penetrated through the bottom of the positioning rod 92, and a connecting hole 1205 is opened at the top of the dust collection chamber 12, and the positioning rod 92 is adapted to the positioning rod 92.

[0030] In this embodiment, first, turn on the fume purifier 1, then connect the connecting pipe 5 at the top of the fume purifier 1 to the connecting end 6 of the horizontally placed spark arrester 7, and then legally inject all the dust absorbed inside the fume purifier 1 into the spark arrester 7, and then proceed as follows.

[0031] First, since there is a motor, a rotating shaft, and an impeller inside the spark arrester 7, when the smoke with sparks collected by the fume purifier 1 enters the spark arrester 7 through the connecting pipe 5 and drives the impeller to rotate through the rotating shaft, when the thick smoke with sparks passes through the impeller after high-speed rotation, after the diversion by the impeller, the dust in the smoke with sparks will collide with the impeller, and after the dust contacts the metal baffle 91 in the separation chamber 9, it will fall into the dust collection chamber 12.

[0032] After the dust falls into the dust collection chamber 12, it will first pass through the activated carbon adsorption layer 1201, then through the filter screen 1202, and finally reach the dust collection groove 1203, and then fall onto the adsorption rubber layer 1204 in the dust collection groove 1203 to prevent dust from flying.

[0033] Then, after the dust is slapped by the impeller and falls into the dust collection chamber 12, the impurities in the smoke are removed, so the remaining air will flow out from the exhaust port 10 and finally be discharged through the deflector 11.

[0034] Then, if it is necessary to remove the dust in the dust collection chamber 12 or replace the filter screen 1202, only need to take out the separation chamber 9 from the connecting hole 1205 opened at the top of the integrated chamber 12, so that the dust inside the integrated chamber 12 can be taken out from the adsorption rubber layer 1204.

[0035] In this utility model, first, the fume purifier 1 collects the welding fumes generated during welding, and transfers them to the spark arrester 7 through the connecting pipe 5. And through the rotation of the impeller inside the spark arrester 7, the sparks in the welding fumes are diverted. What has sparks is dust. The dust reaches the dust collection groove 1203 at the bottom after passing through the activated carbon adsorption layer 1201 and the filter screen 1202 in the dust collection chamber 12, and is attached to the adsorption rubber layer 1204 on the dust collection groove 1203 to prevent dust from flying everywhere.

[0036] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A front-end fire arresting device for a welding smoke purifier, comprising a welding smoke purifier (1), characterized in that: An opening and closing handle (2) is fixedly mounted on one end of the welding smoke purifier (1), a heat dissipation hole (3) is provided on one side of the welding smoke purifier (1), and a fixed end (4) is provided on the top of the welding smoke purifier (1); The top of the fixed end (4) is movably connected to a connecting end (6) of a spark arrester (7) via a connecting pipe (5), and the other end of the spark arrester (7) is connected to a separation chamber (9) via a connecting flange (8).

2. A front-end fire arresting device for welding fume purifier according to claim 1, characterized in that: The separation bin (9) is a hollow structure, and metal baffles (91) are arranged inside the separation bin (9), and the metal baffles (91) are arranged in a staggered manner.

3. The front-end fire arresting device of a welding smoke purifier according to claim 1 is characterized in that: A dust collecting bin (12) is fixedly mounted at the bottom of the separation bin (9), an activated carbon adsorption layer (1201) is arranged inside the dust collecting bin (12), a filter screen (1202) is arranged at the bottom of the activated carbon adsorption layer (1201), and a dust collecting groove (1203) is provided at the bottom of the filter screen (1202).

4. The front-end fire arresting device of a welding smoke purifier according to claim 1 is characterized in that: The other end of the separation bin (9) is provided with an exhaust port (10), and the other end of the exhaust port (10) is provided with a guide plate (11).

5. The front-end fire arresting device of a welding smoke purifier according to claim 1 is characterized in that: The spark arrester (7) is shaped such that the aperture increases continuously from the connection end (6) to the connection flange (8).

6. The front-end fire arresting device of a welding smoke purifier according to claim 3 is characterized in that: The bottom of the dust collecting groove (1203) is in an inverted trapezoidal shape, and an adsorption rubber layer (1204) is provided on the surface of the dust collecting groove (1203).

7. The front-end fire arresting device of a welding smoke purifier according to claim 1 is characterized in that: A positioning rod (92) is provided at the bottom of the separation bin (9), a torsion spring (93) is passed through the bottom of the positioning rod (92), and a connecting hole (1205) is opened at the top of the dust collecting bin (12), and the positioning rods (92) and the positioning rods (92) are adapted to each other.

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