A zinc alloy adjustable dust collecting device

Abstract

A zinc alloy adjustable dust collecting device includes a smoke hood, a rotating flue, a rotating flange and a dust exhaust mechanism. The opening of the smoke hood faces downward, the upper end of the smoke hood is connected to one end of the rotating flue, the other end of the rotating flue is connected to the upper end of the rotating flange, and the dust exhaust mechanism is connected to the lower end of the rotating flange. By arranging a rotating flange between the rotating flue and the lower exhaust flue, the rotating flue can drive the smoke hood to rotate relative to the lower exhaust flue. Rotating the rotating flue can make the smoke hood deviate from the electric furnace, which is convenient for adding materials to the electric furnace; rotating the rotating flue during smelting can make the smoke hood cover directly above the electric furnace, which can collect harmful gases and smoke into the exhaust pipe and discharge it outside the production workshop to purify the working environment in the workshop. A metal filter is arranged in the exhaust pipe to intercept larger particles in the smoke and dust, and discharge them through the dust exhaust mechanism, thereby preventing the exhaust pipe from being blocked during long-term use.

Description

Technical Field

[0001] The utility model relates to a smoke hood, in particular to a smoke hood capable of rotating to exhaust dust. Background Art

[0002] When zinc alloy is smelted in an electric furnace, harmful gases and smoke will be generated. These harmful gases and smoke need to be discharged to the outside of the production workshop through exhaust pipes, so that the workshop has a good working environment. In the past, after the smoke hoods absorbed the generated smoke and dust, they were connected to the outside of the production workshop by setting up exhaust pipes above the workshop, and the smoke and dust were discharged upward. However, this structural arrangement will interfere with the movement of the crane in the workshop. It is very inconvenient for the crane to lift materials, and collisions often occur, which poses serious safety hazards. In addition, the traditional smoke hoods are fixed, which is inconvenient for production operations, smoke escapes, and the workshop environment is poor. Utility Model Content

[0003] The technical problem to be solved by the utility model is: how to effectively discharge harmful gases and smoke generated during zinc alloy smelting without occupying the space above the workshop.

[0004] In view of the above problems, the technical solution proposed by the utility model is: a zinc alloy adjustable dust collecting device, including a smoke hood, a rotating flue, a rotating flange and a dust exhaust mechanism, the opening of the smoke hood faces downward, the upper end of the smoke hood is connected to one end of the rotating flue, the other end of the rotating flue is connected to the upper end of the rotating flange, and the dust exhaust mechanism is connected to the lower end of the rotating flange.

[0005] Preferably, the rotating flue is a bent N-shaped circular tube, and the smoke hood, the rotating flue, the rotating flange and the dust exhaust mechanism are all interconnected.

[0006] Preferably, the dust exhaust mechanism includes a lower smoke exhaust duct, a transverse smoke duct and a dust exhaust joint, the upper end of the lower smoke exhaust duct is connected to the lower end of the rotating flange, one end of the transverse smoke duct is connected to the lower smoke exhaust duct, and the other end of the transverse smoke duct is connected to the dust exhaust joint.

[0007] Preferably, the length direction of the lower smoke exhaust duct is the vertical direction, the transverse flue is vertically connected to the lower smoke exhaust duct, the lower smoke exhaust duct and the transverse flue are both tubular, the dust exhaust joint is a hollow quadrangular pyramid with an open lower end, and the transverse flue is respectively connected to the lower smoke exhaust duct and the dust exhaust joint.

[0008] Preferably, a filter screen is provided in the lower smoke exhaust duct, the filter screen is elliptical, the filter screen is obliquely arranged on the inner wall of the lower smoke exhaust duct, and the height of the bottom of the filter screen is less than or equal to the height of the bottom of the transverse smoke duct.

[0009] Preferably, a smoke-proof plate is provided at the opening at the lower end of the dust exhaust joint, and one end of the smoke-proof plate is hinged to the dust exhaust joint.

[0010] Preferably, a threaded rod is also fixedly connected to the bottom of the dust exhaust joint, a stop block is provided on the threaded rod, a through threaded mounting hole is opened on the stop block, and the stop block is rotatably mounted on the threaded rod.

[0011] The beneficial technical effect of the utility model is as follows: by setting a rotating flange between the rotating flue and the lower exhaust flue, the rotating flue can drive the smoke hood to rotate relative to the lower exhaust flue. Rotating the rotating flue can make the smoke hood deviate from the electric furnace, making it convenient to add materials to the electric furnace; rotating the rotating flue during smelting can make the smoke hood cover directly above the electric furnace, which can collect harmful gases and smoke into the smoke exhaust pipe and discharge them outside the production workshop to purify the working environment in the workshop. A metal filter is set in the smoke exhaust pipe to intercept larger particles in the smoke and discharge them through the dust exhaust mechanism, thereby preventing the smoke exhaust pipe from being blocked during long-term use. The use of this type of smoke hood is convenient for timely collection of smoke, and is convenient for tipping the furnace body, adding materials into the furnace, and collecting smoke when the furnace is tilted. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The three-dimensional structure of the first embodiment is shown in FIG. Figure 1 ;

[0013] Figure 2 The three-dimensional structure of the first embodiment is shown in FIG. Figure 2 ;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the dust exhaust joint in the first embodiment;

[0015] In the figure: smoke hood 1, rotating flue 2, rotating flange 3, lower smoke exhaust duct 4, transverse flue 5, dust exhaust joint 6, smoke prevention plate 61, threaded rod 62, stop block 63. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the embodiments and drawings: Embodiment 1

[0017] like Figure 1 , Figure 2 and Figure 3As shown, the rotary dust collecting hood 1 includes a hood 1, a rotating flue 2, a rotating flange 3 and a dust exhaust mechanism. The hood 1 is a rotating body, the lower end of the hood 1 is a large diameter thin-walled circular tube, and the upper end of the hood 1 is a hollow thin-walled truncated cone with openings at both ends. The rotating flue 2 is a bent N-shaped circular tube, the bottom of the hollow truncated cone is seamlessly connected to the circular tube, and the top of the hollow truncated cone is seamlessly connected to one end of the rotating flue 2. The diameter of the bottom of the hollow truncated cone is the same as the diameter of the circular tube, and the top of the truncated cone is the same as the diameter of the rotating flue 2. The diameter of the circular tube is much larger than the diameter of the rotating flue 2, and the diameter of the circular tube at the lower end of the hood 1 is also larger than the diameter at the opening of the electric furnace. One end of the bent N-shaped rotating flue 2 is connected to the upper end of the hood 1, and the other end is connected to the upper end of the rotating flange 3.

[0018] The smoke hood 1, the rotating flue 2 and the rotating flange 3 are all hollow structures with openings at both ends, and the smoke hood 1, the rotating flue 2 and the rotating flange 3 are interconnected. The dust exhaust mechanism includes a lower smoke exhaust duct 4, a transverse flue 5 and a dust exhaust joint 6, and the lower smoke exhaust duct 4 and the transverse flue 5 are both in the shape of a circular tube. The upper end of the lower smoke exhaust duct 4 is connected to the lower end of the rotating flange 3, so that the rotating flue 2 can rotate with the smoke hood 1 relative to the lower smoke exhaust duct 4. One end of the transverse flue 5 is connected to the lower smoke exhaust duct 4, and the other end of the transverse flue 5 is connected to the dust exhaust joint 6. The length direction of the lower smoke exhaust duct 4 is the vertical direction, and the transverse flue 5 is vertically connected to the lower smoke exhaust duct 4. The dust exhaust joint 6 is a hollow quadrangular pyramid with an opening at the lower end, and the rotating flange 3, the lower smoke exhaust duct 4 and the transverse flue 5 are respectively connected to the dust exhaust joint 6.

[0019] In order to prevent the smoke exhaust pipe from being blocked during long-term use, an elliptical metal filter is provided in the lower smoke exhaust duct 4 to intercept larger particles in the smoke. Figure 2 As shown, the position of the elliptical metal filter in the lower smoke exhaust duct 4 is the dotted line A. The metal filter is tilted on the inner wall of the lower smoke exhaust duct 4, the filter is substantially flush with the transverse flue 5, and the height of the bottom of the filter is less than or equal to the height of the bottom of the transverse flue 5. In this way, larger smoke particles will adhere to the metal filter or slide down the filter into the transverse flue 5.

[0020] In order to regularly clean the large particles of smoke on the filter and in the transverse flue 5, a rectangular anti-smoke plate 61 is hinged at the lower end of the dust exhaust joint 6. When cleaning the smoke, open the anti-smoke plate 61, and use a tool to pull the smoke on the filter and in the transverse flue 5 out from the lower end of the dust exhaust joint 6. When the smoke exhaust pipe is exhausting smoke, in order to prevent smoke from overflowing from the lower end of the dust exhaust joint 6, a threaded rod 62 is also fixedly connected to the bottom of the dust exhaust joint 6, and a stop block 63 is provided on the threaded rod 62. The stop block 63 has a through threaded mounting hole, and the stop block 63 is installed on the threaded rod 62 in a threaded matching manner. Rotating the two stop blocks 63 can make the stop blocks 63 press the anti-smoke plate 61, so that the anti-smoke plate 61 can be closed; rotating the two stop blocks 63 makes the stop blocks 63 deviate from the anti-smoke plate 61, and the anti-smoke plate 61 will automatically open under the action of gravity.

[0021] In this embodiment, rotating the rotating flue 2 can make the smoke hood 1 deviate from the electric furnace, making it convenient to add materials to the electric furnace. During smelting, rotating the rotating flue 2 can make the smoke hood 1 cover the electric furnace directly, and can pass the harmful gases and smoke through the smoke hood 1, the rotating flue 2 and the rotating flange 3 in sequence and enter the lower exhaust duct 4. The other end of the lower exhaust duct 4 will extend to the outside of the workshop. Since the smoke is not discharged upward like before, the layout of the lower exhaust duct 4 does not need to occupy the upper space of the workshop and will not interfere with the movement of vehicles in the workshop. Therefore, the harmful gases and smoke collected from the smoke hood 1 are discharged outside the production workshop through the exhaust pipe, purifying the working environment in the workshop. Embodiment 2

[0022] The difference between this embodiment and the first embodiment is that a detachable cloth bag is not provided at the opening at the bottom of the dust exhaust joint 6, but a smoke-proof plate 61. The cloth bag is used as a dust collector to collect fine dust and pour it into a dust-proof trash can for unified treatment. When cleaning the smoke and dust in the filter screen and the transverse flue 5, the cloth bag is first removed, and the smoke and dust on the filter screen and the transverse flue 5 are pulled out from the lower end of the dust exhaust joint 6 with a tool, and then the cloth bag is reinstalled.

[0023] Obviously, without departing from the principle of the present invention, several improvements or modifications made should be regarded as within the protection scope of the present invention.

Claims

1. A zinc alloy adjustable dust collecting device, characterized in that: It includes a smoke hood, a rotating smoke duct, a rotating flange and a dust exhaust mechanism. The opening of the smoke hood faces downward, the upper end of the smoke hood is connected to one end of the rotating smoke duct, the other end of the rotating smoke duct is connected to the upper end of the rotating flange, and the dust exhaust mechanism is connected to the lower end of the rotating flange.

2. The zinc alloy adjustable dust collecting device according to claim 1, characterized in that: The rotating flue is a bent N-shaped circular tube, and the smoke hood, the rotating flue, the rotating flange and the dust exhaust mechanism are all interconnected.

3. The zinc alloy adjustable dust collecting device according to claim 2, characterized in that: The dust exhaust mechanism comprises a lower smoke exhaust duct, a transverse smoke duct and a dust exhaust joint. The upper end of the lower smoke exhaust duct is connected to the lower end of the rotating flange, one end of the transverse smoke duct is connected to the lower smoke exhaust duct, and the other end of the transverse smoke duct is connected to the dust exhaust joint.

4. The zinc alloy adjustable dust collecting device according to claim 3, characterized in that: The length direction of the lower smoke exhaust duct is the vertical direction, the transverse smoke duct is vertically connected to the lower smoke exhaust duct, the lower smoke exhaust duct and the transverse smoke duct are both tubular, the dust exhaust joint is a hollow quadrangular pyramid with an open lower end, and the transverse smoke duct is respectively connected to the lower smoke exhaust duct and the dust exhaust joint.

5. The zinc alloy adjustable dust collecting device according to claim 4, characterized in that: A filter screen is arranged in the lower smoke exhaust duct. The filter screen is elliptical and is obliquely arranged on the inner side wall of the lower smoke exhaust duct. The height of the bottom of the filter screen is less than or equal to the height of the bottom of the transverse smoke duct.

6. The zinc alloy adjustable dust collecting device according to claim 5, characterized in that: A smoke-proof plate is arranged at the opening of the lower end of the dust-exhaust joint, and one end of the smoke-proof plate is hinged on the dust-exhaust joint.

7. The zinc alloy adjustable dust collecting device according to claim 5, characterized in that: A threaded rod is also fixedly connected to the bottom of the dust exhaust joint, a stop block is arranged on the threaded rod, a through threaded mounting hole is opened on the stop block, and the stop block is rotatably mounted on the threaded rod.

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