Waste gas treatment device for metal smelting furnace
The metal melting furnace waste gas treatment device addresses dust discharge port blockages by incorporating a cooling tank, dust removal box with a filter and beating rod, and exhaust mechanism to ensure efficient pollutant separation and discharge.
Patent Information
- Application Number
- CN202323561688.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-26
AI Technical Summary
The dust discharge port of waste gas treatment devices in metal melting furnaces easily becomes blocked by accumulated smoke and dust, hindering effective dust removal.
A metal melting furnace waste gas treatment device comprising a cooling tank for solidifying pollutants, a dust removal box with a filter screen and beating rod mechanism to dislodge blockages, and an exhaust mechanism for efficient gas discharge.
Prevents dust discharge port blockage, ensures smooth dust discharge, and reduces pollutant content in emitted gases by solidifying pollutants and using a beating rod to clear accumulations.
Smart Images
Figure CN222187844U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste gas treatment equipment, in particular to a waste gas treatment device for a metal melting furnace. Background Art
[0002] In the process of smelting metal in a metal melting furnace, waste gas will be generated. The waste gas generated by smelting metal in a metal melting furnace contains components that pollute the environment and cannot be discharged directly into the atmosphere. Usually, the waste gas needs to be treated before it can be discharged into the atmosphere.
[0003] In the related art, the waste gas generated by smelting metal in a metal furnace needs to be treated by a waste gas treatment device, and dust is a common environmental pollution component in the waste gas generated by smelting metal in a metal furnace, so the waste gas treatment device is generally equipped with a dust removal mechanism.
[0004] In order to reduce the diffusion of dust and facilitate the collection of smoke and dust filtered out by the dust removal mechanism, the dust exhaust port of the dust exhaust nozzle is smaller.
[0005] However, when the smoke and dust pass through the dust discharge nozzle, it is easy to accumulate on the inner wall of the dust discharge nozzle, causing the dust discharge port to be blocked by the smoke and dust, thereby affecting the dust discharge of the dust removal mechanism. Utility Model Content
[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a metal melting furnace waste gas treatment device, which can prevent the dust discharge port from being blocked and ensure that the dust discharge port is unobstructed.
[0007] According to a first aspect of the utility model, a metal melting furnace waste gas treatment device comprises: a cooling tank having a first air inlet, a first air outlet and a slag discharge port, wherein the first air inlet is used for the intake of waste gas, the cooling tank is used to cool the waste gas so as to cool part of the pollutants in the waste gas into solid precipitation, the first air outlet is used to output the cooled waste gas, the slag discharge port is located at the bottom of the cooling tank, and the slag discharge port is used to discharge the precipitated solid pollutants; a dust removal box, the inner cavity of which is provided with a filter screen, the filter screen divides the inner cavity of the dust removal box into a pre-filter cavity and a post-filter cavity, the pre-filter cavity is connected to the first air outlet, and the post-filter cavity has a first Two air outlets, the bottom of the dust removal box is provided with a dust exhaust nozzle, the bottom of the dust exhaust nozzle is provided with a dust exhaust port, the dust exhaust port is connected to a dust storage bag, the dust removal box is also provided with a beating rod and a first cylinder, one end of the beating rod is located in the dust exhaust port, the first cylinder drives the beating rod to rise and fall so that the end of the beating rod can break up the smoke and dust accumulated and blocking the dust exhaust port; an exhaust mechanism is used to discharge the treated waste gas into the atmosphere, including an air duct, a chimney and an exhaust fan, the air duct is connected to the second air outlet and the bottom end of the chimney, the exhaust fan is used to draw the waste gas discharged from the second air outlet to the chimney, and the top of the chimney is used to discharge the waste gas.
[0008] A metal melting furnace waste gas treatment device according to an embodiment of the utility model has at least the following beneficial effects:
[0009] 1. The utility model sets a cooling tank, which has a first air inlet, a first air outlet and a slag discharge port. The first air inlet is used for the intake of exhaust gas, and the cooling tank is used to cool the exhaust gas so as to cool some pollutants in the exhaust gas into solid state for precipitation. The first air outlet is used to output the cooled exhaust gas, and the slag discharge port is located at the bottom of the cooling tank, and the slag discharge port is used to discharge the precipitated solid pollutants. It can be understood that by cooling the exhaust gas, some pollutants in the exhaust gas can be cooled into solid state first, thereby facilitating the separation of solid pollutants from the exhaust gas, and further reducing the pollutants in the exhaust gas finally discharged.
[0010] 2. The utility model provides a dust removal box, and the inner cavity of the dust removal box is provided with a filter screen. The filter screen divides the inner cavity of the dust removal box into a pre-filter chamber and a post-filter chamber. The pre-filter chamber is connected to the first air outlet, and the post-filter chamber has a second air outlet. The bottom of the dust removal box has a dust exhaust nozzle, and the bottom of the dust exhaust nozzle has a dust exhaust port, and the dust exhaust port is connected to a dust storage bag. It can be understood that the exhaust gas treated by the cooling tank enters the pre-filter chamber from the first air outlet, and then the exhaust gas passes through the filter screen. The filter screen filters the smoke and dust in the exhaust gas, so that the smoke and dust remain in the pre-filter chamber and are discharged from the dust exhaust port to the dust storage belt for storage. The exhaust gas after filtering the smoke and dust enters the post-filter chamber and is discharged through the second air outlet, thereby reducing the content of smoke and dust contained in the emitted gas, and then reducing pollution.
[0011] 3. The utility model provides a dust removal box with a beating rod and a first cylinder, one end of the beating rod is located in the dust discharge port, and the first cylinder drives the beating rod to rise and fall so that the end of the beating rod can break up the smoke and dust accumulated and blocking the dust discharge port. Thus, the first cylinder drives the beating rod to rise and fall back and forth, so that the beating rod can continuously knock the smoke and dust accumulated in the dust discharge port out and push the smoke and dust downward into the dust storage bag, thereby preventing the dust discharge port from being blocked and ensuring smooth dust discharge at the dust discharge port.
[0012] 4. The utility model is provided with an exhaust mechanism, which is used to discharge the treated waste gas into the atmosphere. The exhaust mechanism includes an air duct, a chimney and an exhaust fan. The air duct is connected to the second air outlet and the bottom end of the chimney. The exhaust fan is used to draw the waste gas discharged from the second air outlet to the chimney. The top of the chimney is used to discharge the waste gas. Therefore, the exhaust fan can speed up the exhaust gas discharge, which is beneficial to improving the efficiency of the exhaust gas discharge.
[0013] According to some embodiments of the present utility model, the filter screen is arranged horizontally, the pre-filter chamber is located below the filter screen, and the post-filter chamber is located above the filter screen.
[0014] According to some embodiments of the utility model, the first cylinder is installed above the dust removal box, the top end of the beating rod is connected to the first cylinder, and the bottom end of the beating rod passes through the filter and extends to the dust exhaust port.
[0015] According to some embodiments of the utility model, the filter net includes a front half net and a rear half net, the front half net and the rear half net are detachably connected, the front half net has a first semicircular groove on the side close to the rear half net, and the rear half net has a second semicircular groove on the side close to the front half net, and the first semicircular groove and the second semicircular groove cooperate to form a sliding hole for accommodating the lifting and lowering of the punching rod.
[0016] According to some embodiments of the utility model, the left and right walls of the inner cavity of the dust removal box are respectively provided with slide grooves, which extend forward and backward, and the two slide grooves slide in cooperation with the edges of the front half net and the rear half net respectively.
[0017] According to some embodiments of the utility model, the front side wall and the rear side wall of the dust removal box are respectively provided with filter openings, and the two filter openings respectively accommodate the front half of the filter and the rear half of the filter to enter and exit the inner cavity of the dust removal box.
[0018] According to some embodiments of the utility model, the inner cavity of the dust removal box is provided with a plurality of support rods extending forward and backward, and the support rods are used to support the bottom of the front half net or the rear half net.
[0019] According to some embodiments of the utility model, a hanging rod is provided on the outer side of the bottom of the dust exhaust nozzle, and the hanging rod is used to hook the bag rope of the dust storage bag.
[0020] According to some embodiments of the utility model, the side wall of the pre-filter chamber is provided with an operation port, and the dust removal box is further hinged with a gate, and the gate is used to open and close the operation port.
[0021] According to some embodiments of the present utility model, the pre-filter chamber is funnel-shaped, and the small end of the pre-filter chamber is connected to the dust exhaust nozzle.
[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0024] Figure 1 This is a schematic structural diagram of a metal melting furnace waste gas treatment device according to an embodiment of the utility model;
[0025] Figure 2 for Figure 1 A cross-sectional view is shown;
[0026] Figure 3 for Figure 2 A schematic diagram of the structure of the filter screen is shown.
[0027] Figure markings: 100-cooling tank, 110-first air inlet, 120-first air outlet, 130-slag discharge port, 140-dust removal box, 150-filter screen, 160-pre-filter chamber, 170-post-filter chamber, 180-second air outlet, 190-dust exhaust nozzle, 200-dust exhaust port, 210-beating rod, 220-first cylinder, 230-air guide pipe, 240-chimney, 250-exhaust fan, 260-front half net, 270-back half net, 280-first semicircular groove, 290-second semicircular groove, 300-slide, 310-filter screen port, 320-support rod, 330-hanging rod, 340-gate. DETAILED DESCRIPTION
[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0030] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] A metal melting furnace waste gas treatment device according to an embodiment of the utility model is described below in conjunction with the accompanying drawings.
[0033] Reference Figure 1 , Figure 2 and Figure 3 A metal melting furnace exhaust gas treatment device according to an embodiment of the utility model includes a cooling tank 100, a dust removal box 140 and an exhaust mechanism.
[0034] For the cooling tank 100, the cooling tank 100 has a first air inlet 110, a first air outlet 120 and a slag discharge port 130. The first air inlet 110 is used for the intake of exhaust gas. The cooling tank 100 is used to cool the exhaust gas so as to cool some pollutants in the exhaust gas into solid precipitation. The first air outlet 120 is used to output the cooled exhaust gas. The slag discharge port 130 is located at the bottom of the cooling tank 100, and the slag discharge port 130 is used to discharge the precipitated solid pollutants.
[0035] It is understandable that by cooling the exhaust gas, some pollutants in the exhaust gas can be cooled into a solid state first, thereby facilitating the separation of solid pollutants from the exhaust gas, and further reducing the pollutants in the exhaust gas finally discharged.
[0036] In some specific embodiments, two cooling tanks 100 are provided, and the two cooling tanks 100 are arranged adjacent to each other. The first air outlet 120 of the previous cooling tank 100 and the first air inlet 110 of the subsequent cooling tank 100 are connected through an air pipe. Therefore, after cooling the exhaust gas twice, the pollutants in the exhaust gas are further reduced.
[0037] For the dust removal box 140, the inner cavity of the dust removal box 140 is provided with a filter 150, and the filter 150 divides the inner cavity of the dust removal box 140 into a pre-filter chamber 160 and a post-filter chamber 170. The pre-filter chamber 160 is connected to the first air outlet 120, and the post-filter chamber 170 has a second air outlet 180. The bottom of the dust removal box 140 has a dust exhaust nozzle 190, and the bottom of the dust exhaust nozzle 190 has a dust exhaust port 200, and the dust exhaust port 200 is connected to a dust storage bag.
[0038] It can be understood that the exhaust gas treated by the cooling tank 100 enters the pre-filter chamber 160 from the first air outlet 120, and then passes through the filter 150. The filter 150 filters the smoke in the exhaust gas, so that the smoke remains in the pre-filter chamber 160 and is discharged from the dust outlet 200 to the dust storage belt for storage. The exhaust gas after filtering the smoke enters the post-filter chamber 170 and is then discharged through the second air outlet 180, thereby reducing the content of smoke in the exhaust gas and further reducing pollution.
[0039] Furthermore, the dust removal box 140 is also provided with a beating rod 210 and a first cylinder 220. One end of the beating rod 210 is located in the dust exhaust port 200. The first cylinder 220 drives the beating rod 210 to rise and fall so that the end of the beating rod 210 can break up the smoke and dust accumulated and blocking the dust exhaust port 200. Thus, the first cylinder 220 drives the beating rod 210 to rise and fall back and forth, so that the beating rod 210 can continuously knock out the accumulated smoke and dust at the dust exhaust port 200 and push the smoke and dust downward into the dust storage bag, thereby preventing the dust exhaust port 200 from being blocked and ensuring smooth dust exhaust at the dust exhaust port 200.
[0040] In some specific embodiments, the filter 150 is arranged horizontally, the pre-filter chamber 160 is located below the filter 150, and the post-filter chamber 170 is located above the filter 150. It can be understood that the exhaust gas floats upward on its own. After the exhaust gas enters the pre-filter chamber 160 below the filter 150, it can float upward through the filter 150, thereby preventing the exhaust gas in the pre-filter chamber 160 from passing through the filter 150.
[0041] In some specific embodiments, the first cylinder 220 is installed above the dust removal box 140, the top end of the beating rod 210 is connected to the first cylinder 220, and the bottom end of the beating rod 210 passes through the filter 150 and extends to the dust exhaust port 200, so that the first cylinder 220 is arranged outside the dust removal box 140. On the one hand, it is convenient to maintain the first cylinder 220, and on the other hand, it prevents exhaust gas from entering the first cylinder 220 and damaging the first cylinder 220.
[0042] In some specific embodiments, the filter screen 150 includes a front half screen 260 and a rear half screen 270, and the front half screen 260 and the rear half screen 270 are detachably connected. The front half screen 260 has a first semicircular groove 280 on the side close to the rear half screen 270, and the rear half screen 270 has a second semicircular groove 290 on the side close to the front half screen 260. The first semicircular groove 280 and the second semicircular groove 290 cooperate to form a sliding hole for accommodating the lifting and lowering of the punching rod 210. Therefore, on the one hand, the sliding hole can guide the lifting and lowering of the punching rod 210, so that the lifting and lowering of the punching rod 210 is smoother. On the other hand, by making the front half screen 260 and the rear half screen 270 detachably connected, the disassembly of the front half screen 260 and the rear half screen 270 can avoid the punching rod 210, thereby preventing the punching rod 210 from hindering the disassembly and replacement of the filter screen 150.
[0043] In some specific embodiments, the left and right walls of the inner cavity of the dust removal box 140 are respectively provided with slide grooves 300, which extend forward and backward. The two slide grooves 300 respectively cooperate with the edges of the front half net 260 and the rear half net 270 to slide, thereby making the installation position of the front half net 260 and the rear half net 270 in the dust removal box 140 more accurate. At the same time, the two slide grooves 300 can respectively support the front half net 260 and the rear half net 270, thereby making the installation of the front half net 260 and the rear half net 270 more stable.
[0044] Furthermore, the front side wall and the rear side wall of the dust removal box 140 are respectively provided with filter openings 310, and the two filter openings 310 respectively accommodate the front half net 260 and the rear half net 270 to enter and exit the inner cavity of the dust removal box 140, so that the front half net 260 and the rear half net 270 can be installed and removed from the front side wall and the rear side wall of the dust removal box 140 respectively, thereby avoiding the material rod 210 from hindering the installation and removal of the front half net 260 and the rear half net 270.
[0045] In some specific embodiments, the inner cavity of the dust removal box 140 is provided with a plurality of support rods 320 extending forward and backward, and the support rods 320 are used to support the bottom of the front half net 260 or the rear half net 270, thereby making the front half net 260 and the rear half net 270 more secure in the dust removal box 140.
[0046] In some specific embodiments, a hanging rod 330 is provided on the outer side of the bottom of the dust discharge nozzle 190 , and the hanging rod 330 is used to hook the bag rope of the dust storage bag, thereby facilitating the dust storage bag to be fixed under the dust discharge nozzle 190 .
[0047] In some specific embodiments, the side wall of the pre-filter chamber 160 is provided with an operation port, and the dust removal box 140 is further hinged with a gate 340, which is used to open and close the operation port.
[0048] It is understandable that when the gate 340 closes the operating port, the gate 340 can seal the operating port to prevent smoke and dust from leaking out of the operating port and polluting the air. When the gate 340 is opened, the user can clean the smoke and dust adhering to the inner wall of the pre-filter chamber 160 from the operating port, thereby preventing excessive smoke and dust from accumulating on the inner wall of the pre-filter chamber 160 and affecting its use.
[0049] In some specific embodiments, the pre-filter chamber 160 is funnel-shaped, and the small end of the pre-filter chamber 160 is connected to the dust exhaust nozzle 190 , so that the pre-filter chamber 160 can guide the smoke and dust downward into the dust exhaust nozzle 190 .
[0050] In some specific embodiments, two dust removal boxes 140 are provided, and the two dust removal boxes 140 are arranged adjacent to each other. The second air outlet 180 of the front dust removal box 140 is connected to the pre-filter chamber 160 of the rear dust removal box 140 through an air pipe, thereby enabling the exhaust gas treatment device to treat the smoke more thoroughly and further reduce the smoke content in the discharged exhaust gas.
[0051] As for the exhaust mechanism, the exhaust mechanism is used to discharge the treated waste gas into the atmosphere, and the exhaust mechanism includes an air duct 230, a chimney 240 and an exhaust fan 250. The air duct 230 connects the second air outlet 180 and the bottom end of the chimney 240. The exhaust fan 250 is used to draw the waste gas discharged from the second air outlet 180 to the chimney 240. The top of the chimney 240 is used to discharge the waste gas. Therefore, the exhaust fan 250 can speed up the exhaust gas discharge, which is beneficial to improve the efficiency of the exhaust gas discharge.
[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0053] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A metal smelting furnace waste gas treatment device, characterized in that: include: A cooling tank (100) having a first air inlet (110), a first air outlet (120) and a slag discharge port (130), wherein the first air inlet (110) is used for the intake of waste gas, the cooling tank (100) is used for cooling the waste gas so as to cool some pollutants in the waste gas into solid state for precipitation, the first air outlet (120) is used for outputting the cooled waste gas, the slag discharge port (130) is located at the bottom of the cooling tank (100), and the slag discharge port (130) is used for discharging precipitated solid pollutants; A dust removal box (140) has an inner cavity provided with a filter screen (150), the filter screen (150) dividing the inner cavity of the dust removal box (140) into a pre-filter cavity (160) and a post-filter cavity (170), the pre-filter cavity (160) being connected to the first air outlet (120), the post-filter cavity (170) having a second air outlet (180), and a dust discharge nozzle (190) being provided at the bottom of the dust removal box (140), the dust discharge nozzle (190) ) has a dust discharge port (200) at the bottom, the dust discharge port (200) is connected to a dust storage bag, the dust removal box (140) is further provided with a knocking rod (210) and a first cylinder (220), one end of the knocking rod (210) is located in the dust discharge port (200), and the first cylinder (220) drives the knocking rod (210) to rise and fall so that the end of the knocking rod (210) can break up the smoke and dust that accumulates and blocks the dust discharge port (200); An exhaust mechanism, used for discharging treated waste gas into the atmosphere, comprises an air duct (230), a chimney (240) and an exhaust fan (250), wherein the air duct (230) is connected to the second air outlet (180) and the bottom end of the chimney (240), the exhaust fan (250) is used for drawing the waste gas discharged from the second air outlet (180) toward the chimney (240), and the top end of the chimney (240) is used for discharging the waste gas.
2. A metal melting furnace waste gas treatment device according to claim 1, characterized in that: The filter screen (150) is arranged transversely, the pre-filter chamber (160) is located below the filter screen (150), and the post-filter chamber (170) is located above the filter screen (150).
3. A metal melting furnace waste gas treatment device according to claim 2, characterized in that: The first cylinder (220) is installed above the dust removal box (140), the top end of the beating rod (210) is connected to the first cylinder (220), and the bottom end of the beating rod (210) passes through the filter screen (150) and extends to the dust exhaust port (200).
4. A metal melting furnace waste gas treatment device according to claim 3, characterized in that: The filter screen (150) comprises a front half screen (260) and a rear half screen (270), wherein the front half screen (260) and the rear half screen (270) are detachably connected, a side of the front half screen (260) close to the rear half screen (270) has a first semicircular groove (280), and a side of the rear half screen (270) close to the front half screen (260) has a second semicircular groove (290), and the first semicircular groove (280) and the second semicircular groove (290) cooperate to form a sliding hole for accommodating the lifting and lowering of the punching rod (210).
5. A metal melting furnace waste gas treatment device according to claim 4, characterized in that: The left and right walls of the inner cavity of the dust removal box (140) are respectively provided with slide grooves (300), the slide grooves (300) extending forward and backward, and the two slide grooves (300) slide in cooperation with the edges of the front half net (260) and the rear half net (270), respectively.
6. A metal smelting furnace waste gas treatment device according to claim 5, characterized in that: The front side wall and the rear side wall of the dust removal box (140) are respectively provided with filter screen openings (310), and the two filter screen openings (310) respectively accommodate the front half screen (260) and the rear half screen (270) to enter and exit the inner cavity of the dust removal box (140).
7. A metal melting furnace waste gas treatment device according to claim 6, characterized in that: The inner cavity of the dust removal box (140) is provided with a plurality of support rods (320) extending forward and backward, and the support rods (320) are used to support the bottom of the front half net (260) or the rear half net (270).
8. The metal melting furnace waste gas treatment device according to claim 1, characterized in that: A hanging rod (330) is provided on the outer side of the bottom of the dust exhaust nozzle (190), and the hanging rod (330) is used to hook the bag rope of the dust storage bag.
9. The metal melting furnace waste gas treatment device according to claim 1, characterized in that: An operating port is provided on the side wall of the pre-filter chamber (160), and the dust removal box (140) is also hingedly provided with a gate (340), wherein the gate (340) is used to open and close the operating port.
10. The metal melting furnace waste gas treatment device according to claim 1, characterized in that: The pre-filter chamber (160) is funnel-shaped, and the small end of the pre-filter chamber (160) is connected to the dust exhaust nozzle (190).