Lampblack waste gas filtering device

Abstract

The utility model provides a lampblack waste gas filtering device, which relates to the technical field of waste gas filtering and comprises a filtering bin, the filtering bin is sequentially divided into a primary filtering area, a spacing area and a secondary purifying area from the input end to the output end, and spacing plates are arranged on two sides of the spacing area for spacing; a filter screen, a cleaning spray head and a cleaning mechanism are arranged in the preliminary filtering area, the cleaning spray head and the cleaning mechanism are installed on the two sides of the filter screen respectively, and the cleaning mechanism is close to the end, away from the spacer area, of the filter screen; the cleaning mechanism comprises an air cylinder, a connecting arm, a support and a metal brush roller. By arranging the primary filtering area, the spacer area and the secondary purifying area and adopting the adjustable metal filter screen to be matched with the cleaning mechanism, the problem that the filter screen is prone to being blocked when the oil smoke amount is large is effectively solved, the metal brush roller is driven by the air cylinder to ascend and descend, grease and particulate matter on the filter screen can be effectively removed, and the cleaning effect is good. And the trouble that the filter screen needs to be replaced or frequently cleaned due to continuous blockage in the traditional mode is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas filtration technical field especially, relates to a kind of oil fume waste gas filtration device. BACKGROUND

[0002] Oil fume waste gas filtration refers to the particulate matter, oil, harmful gas and other pollutants in oil fume waste gas are removed by specific technical means and equipment, to achieve the purpose of purifying air, protecting environment;

[0003] At present, physical filtration, oil fume particulate matter is captured by filter screen, electrostatic, photocatalysis and other means, common filter materials include metal filter screen, glass fiber filter screen, activated carbon filter screen etc., these filter screens can effectively intercept relatively large particles, prevent them from entering subsequent purification unit, but the metal filter screen of the prior art can preliminarily filter oil fume, but due to large oil fume quantity, if mesh is small, clogging situation will appear soon, and if mesh is large, filtration effect will decrease linearly, therefore, we propose a kind of oil fume waste gas filtration device. SUMMARY

[0004] The utility model discloses a kind of oil fume waste gas filtration devices, to solve the problems existing in the prior art, the metal filter screen of the prior art can preliminarily filter oil fume, but due to large oil fume quantity, if mesh is small, clogging situation will appear soon, and if mesh is large, filtration effect will decrease linearly.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of oil fume waste gas filtration device, including filter bin, the input end of the filter bin is sequentially divided into preliminary filtration zone, interval area and secondary purification zone towards output end, interval plate interval is equipped on the both sides of interval area, interval plate close to preliminary filtration zone and filter bin bottom form first through gap, and interval plate close to secondary purification zone and filter bin top end form second through gap;

[0007] The preliminary filtration zone is arranged with filter screen, cleaning nozzle and cleaning mechanism, the cleaning nozzle and cleaning mechanism are respectively installed on the both sides of filter screen, and the cleaning mechanism is close to filter screen and away from interval area end;

[0008] The cleaning mechanism includes cylinder, connecting arm, support and metal brush roll, the metal brush roll is installed in the inner side of support, the cylinder and connecting arm are equipped with two groups, the support both sides are fixed by connecting arm, and the cylinder is fixed in filter bin side wall, the connecting arm is parallel with cylinder, and is fixed with the output end thereof, the support is lifted by the extension of cylinder, to brush filter screen.

[0009] Further, the two ends of the filter bin and the second through gap are provided with air suction bins, and the air suction bins are internally provided with fans, the air direction of the fan is towards the output end of the filter bin, and the input end and the output end of the filter bin are connected with the air inlet pipe and the air outlet pipe respectively.

[0010] Further, the spacer plate at the first through gap is internally provided with a telescopic rod, the output end of the telescopic rod is provided with a baffle, and the baffle is driven to block the first through gap through the telescopic rod.

[0011] Further, the secondary purification zone is additionally provided with a filter adsorption unit.

[0012] Further, the cleaning nozzle is connected with an external pressurized pipeline, and the cleaning nozzle is installed on a rotating mechanism, the rotating mechanism is composed of a fixing frame, a motor and a shaft body, the cleaning nozzle is driven to rotate through the rotating mechanism, and the filter screen is comprehensively washed.

[0013] Further, the bottom surface of the preliminary filtration zone is in a circular arc structure, and the lowest point is provided with a water receiving hole, and the water receiving hole is connected with the sewage pipe.

[0014] Further, the outer side of the support is provided with a driving motor, and the output end of the driving motor is fixed with the metal brush roller.

[0015] Further, the metal bristles of the metal brush roller are attached to the filter screen.

[0016] Compared with the prior art, the oil fume filter has the advantages that:

[0017] By arranging the preliminary filtration zone, the spacer zone and the secondary purification zone, and by adopting the adjustable metal filter screen and the cleaning mechanism, the problem that the filter screen is easily blocked when the oil fume amount is large is effectively solved, the metal brush roller is driven to ascend and descend by the air cylinder, the oil and the particulate matter on the filter screen can be effectively removed, and the trouble that the filter screen needs to be replaced or frequently cleaned due to continuous blocking in the traditional mode is avoided.

[0018] The cleaning nozzle and the cleaning mechanism are respectively installed on the two sides of the filter screen, the cleaning nozzle is supplied with water through the external pressurized pipeline, and is driven to rotate by the rotating mechanism, so that the filter screen is comprehensively washed, the design improves the cleaning efficiency, and ensures that the filter screen maintains a high filtering efficiency for a long time.

[0019] The telescopic rod and the baffle at the first through gap are designed, so that the size of the gap is reduced during cleaning, and a relatively closed cleaning space is avoided.

[0020] The filter adsorption unit additionally arranged in the secondary purification zone can effectively remove the harmful gas and the small particulate matter in the oil fume exhaust gas, improve the overall purification effect, and prolong the continuous use time. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The overall structural schematic diagram of the oil fume waste gas filtering device is provided.

[0022] Figure 2 The filter bin side surface structure dissection schematic diagram of the oil fume waste gas filtering device is provided.

[0023] Figure 3 The A partial enlarged schematic diagram of the oil fume waste gas filtering device is provided.

[0024] Figure 4 The connecting arm structure schematic diagram of the oil fume waste gas filtering device is provided.

[0025] Legend: 1, filter bin; 11, air suction bin; 12, air inlet pipe; 13, air outlet pipe;

[0026] 2, preliminary filtering area; 21, filter screen; 22, cleaning nozzle; 23, water receiving hole;

[0027] 3, interval area; 31, interval plate;

[0028] 4, secondary purification area;

[0029] 5, first through gap; 51, telescopic rod; 52, baffle;

[0030] 6, second through gap;

[0031] 7, cleaning mechanism; 71, air cylinder; 72, connecting arm; 73, support; 74, metal brush roller; 75, driving motor. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the related description, and several embodiments of the present application are given. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0034] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element is described as being "connected" or "coupled" to another element, it can be directly connected or coupled or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0036] Embodiment 1

[0037] As Figures 1-4 The utility model provides a kind of technical scheme: a kind of oil fume exhaust filtering device, the input end of filter bin 1 is sequentially divided into preliminary filtration zone 2, interval area 3 and secondary purification zone 4 towards output end, preliminary filtration zone 2 and secondary purification zone 4 realize the step-by-step purification of oil fume exhaust, interval area 3 is equipped with interval plate 31 interval in both sides, interval area 3 can also be increased existing filter equipment according to demand, interval plate 31 close to preliminary filtration zone 2 and filter bin 1 bottom form first through gap 5, and interval plate 31 close to secondary purification zone 4 and filter bin 1 top end form second through gap 6;

[0038] Preliminary filtration zone 2 is arranged with filter screen 21, cleaning nozzle 22 and cleaning mechanism 7, cleaning nozzle 22 and cleaning mechanism 7 are respectively installed in the both sides of filter screen 21, and cleaning mechanism 7 is close to filter screen 21 and away from interval area 3 end;

[0039] Cleaning mechanism 7 includes cylinder 71, connecting arm 72, support 73 and metal brush roller 74, metal brush roller 74 is installed in the inside of support 73, cylinder 71 and connecting arm 72 are equipped with two groups, support 73 both sides are fixed by connecting arm 72, and cylinder 71 is fixed in the side wall of filter bin 1, connecting arm 72 is parallel with cylinder 71, and is fixed with the output end thereof, support 73 is lifted by the telescopic cylinder 71, to brush filter screen 21.

[0040] In summary, when the cleaning mechanism 7 is started, the cylinder 71 starts to work, and the piston inside it performs telescopic movement under the action of air pressure. This movement is transmitted to the bracket 73 through the connecting arm 72, so that the bracket 73 performs lifting and lowering movement along the extension and retraction direction of the cylinder 71. The lifting and lowering movement of the bracket 73 drives the metal brush roller 74 to brush and clean the filter 21. During the cleaning process, the metal bristles of the metal brush roller 74 fit tightly with the filter 21, and the grease and particulate matter on the surface of the filter 21 are brushed off by the brushing action of the bristles. At the same time, the cleaning nozzle 22 will also be started to flush the filter 21 to further remove the grease and particulate matter brushed off.

[0041] The telescopic movement of the cylinder 71 is periodic (externally controlled by staff or designed timing control program), so that the cleaning mechanism 7 can regularly clean the filter 21, thereby maintaining its efficient filtering performance. In addition, by adjusting the telescopic frequency and amplitude of the cylinder 71, the cleaning intensity and frequency of the cleaning mechanism 7 can also be controlled to adapt to different working environments and needs.

[0042] Example 2

[0043] like Figure 2 As shown, exhaust bins 11 are installed at both ends of the filter bin 1 and at the second through-notch 6, and a fan is built into the exhaust bin 11. The wind direction of the fan is toward the output end of the filter bin 1, and the input end and output end of the filter bin 1 are respectively connected to the air inlet pipe 12 and the air outlet pipe 13, which is a conventional design for existing oil fume exhaust gas filtration, assisting the flow of air intake and exhaust and oil fume.

[0044] A telescopic rod 51 is installed in the partition plate 31 at the first passing gap 5, and a baffle 52 is installed at the output end of the telescopic rod 51. The telescopic rod 51 is extended and retracted to drive the baffle 52 to block the first passing gap 5. The telescopic rod 51 can be extended and retracted to drive the baffle 52 to partially or completely block the first passing gap 5. This design is particularly important when cleaning the filter 21. It can reduce the size of the gap and prevent sewage and particulate matter during the cleaning process from entering the subsequent treatment unit, thereby maintaining the stability and efficiency of the entire filtration system.

[0045] Among them, the secondary purification area 4 is equipped with a filtration adsorption unit.

[0046] It should be noted that the type of filtration and adsorption unit is physical adsorption;

[0047] Working principle: Utilize filter materials such as organic polymer composite fabrics or felts with high oil absorption performance, inorganic filter materials (such as hydrophobic perlite, ceramsite, coke, etc.), etc., and select them according to needs to intercept and adsorb particulate matter in oil fume exhaust gas. These filter materials can be placed in a direction perpendicular to or parallel to the direction of flue gas flow, and are suitable for the placement of this device.

[0048] The cleaning nozzle 22 is connected with an external pressurizing pipeline, the external pressurizing pipeline is connected with a cleaning agent and a clean water conveying line, pressurized by a water pump and then sprayed out through the cleaning nozzle 22, and the cleaning nozzle 22 is installed on a rotating mechanism, the rotating mechanism is composed of a fixing frame, a motor and a shaft body, and the rotating mechanism drives the cleaning nozzle 22 to rotate, thereby comprehensively flushing the filter screen 21.

[0049] Meanwhile, the bottom surface of the preliminary filtering area 2 is in a circular arc structure, and the lowest point is provided with a water receiving hole 23 connected with a sewage discharge pipe, thereby facilitating the discharge of the sewage.

[0050] As shown in Fig. 3, a driving motor 75 is installed on the outer side of the support 73, the driving motor 75 is installed on the outer side of the support 73, the driving motor 75 drives the metal brush roller 74 to rotate, thereby improving the cleaning efficiency, and the output end of the driving motor 75 is fixed with the metal brush roller 74.

[0051] The metal bristles of the metal brush roller 74 are in close contact with the filter screen 21, and the filter screen 21 is more effectively brushed when the metal brush roller 74 rotates.

[0052] The working process of the utility model is as follows: when the oil fume waste gas filtering device is used, first, the oil fume waste gas enters the preliminary filtering area 2 of the filtering bin through the air inlet pipe 12, in the preliminary filtering area 2, the oil fume waste gas first passes through the metal filter screen 21, the filter screen 21 can preliminarily intercept the large particle grease, particulate matter and other impurities in the oil fume waste gas, with the continuous entry of the oil fume waste gas, the filter screen 21 surface may gradually accumulate grease and particulate matter, resulting in a decrease in the filtering efficiency, in order to maintain the cleanliness of the filter screen 21 and the high filtering efficiency, the cleaning mechanism 7 starts to work, the cylinder 71 drives the support 73 to ascend and descend through the connecting arm 72, thereby making the metal brush roller 74 brush the filter screen 21, the metal bristles of the metal brush roller 74 are in close contact with the filter screen 21, through the driving of the driving motor 75, the grease and particulate matter on the filter screen 21 can be effectively removed, at the same time, in order to further enhance the cleaning effect, the cleaning nozzle 22 also works, the cleaning nozzle 22 is connected with an external pressurizing pipeline, through the driving of the rotating mechanism (composed of a fixing frame, a motor and a shaft body), the filter screen 21 is comprehensively flushed, the design not only improves the cleaning efficiency, but also through the transition of the interval area, the oil fume waste gas enters the secondary purification area 4, in the secondary purification area 4, a filtering and adsorbing unit is additionally installed, through the processing of the filtering and adsorbing unit, the harmful gas and the small particulate matter in the oil fume waste gas are effectively removed, thereby further improving the overall purification effect, finally, the oil fume waste gas treated by the secondary purification area 4 is discharged through the air outlet pipe 13, in the discharging process, the fan in the air suction bin 11 provides power, thereby helping the oil fume waste gas to be smoothly discharged.

[0053] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooking fume exhaust filtering device comprising a filtering bin (1), characterized in that: The input end of the filter bin (1) is sequentially divided into a preliminary filtering area (2), an interval area (3) and a secondary purification area (4) from the input end to the output end, interval plates (31) are arranged on both sides of the interval area (3), the interval plate (31) close to the preliminary filtering area (2) forms a first passing gap (5) with the bottom of the filter bin (1), and the interval plate (31) close to the secondary purification area (4) forms a second passing gap (6) with the top end of the filter bin (1); The preliminary filtering area (2) is arranged with a filter screen (21), a cleaning nozzle (22) and a cleaning mechanism (7), the cleaning nozzle (22) and the cleaning mechanism (7) are respectively installed on both sides of the filter screen (21), and the cleaning mechanism (7) is close to the filter screen (21) and away from the interval area (3) end; The cleaning mechanism (7) comprises a cylinder (71), a connecting arm (72), a bracket (73) and a metal brush roller (74), the metal brush roller (74) is installed on the inner side of the bracket (73), the cylinder (71) and the connecting arm (72) are provided in two groups, the bracket (73) is fixed on both sides through the connecting arm (72), and the cylinder (71) is fixed in the side wall of the filter bin (1), the connecting arm (72) is parallel to the cylinder (71) and is fixed with the output end of the cylinder (71), the bracket (73) is driven to ascend and descend through the extension and contraction of the cylinder (71), and then the filter screen (21) is brushed.

2. The oil fume exhaust filtering device according to claim 1, characterized in that: Both ends of the filter bin (1) and the second passing gap (6) are provided with an air extraction bin (11), and a fan is arranged in the air extraction bin (11), the air direction of the fan is towards the output end of the filter bin (1), and the input end and the output end of the filter bin (1) are respectively connected with an air inlet pipe (12) and an air outlet pipe (13).

3. The oil fume exhaust filtering device according to claim 1, characterized in that: A telescopic rod (51) is installed in the interval plate (31) at the first passing gap (5), a baffle (52) is installed at the output end of the telescopic rod (51), and the baffle (52) is driven to block the first passing gap (5) through the extension and contraction of the telescopic rod (51).

4. The oil fume exhaust filtering device according to claim 1, characterized in that: A filter adsorption unit is additionally arranged in the secondary purification area (4).

5. The oil fume exhaust filtering device according to claim 1, characterized in that: The cleaning nozzle (22) is connected with an external pressurized pipeline, and the cleaning nozzle (22) is installed on a rotating mechanism, the rotating mechanism comprises a fixing frame, a motor and a shaft body, the cleaning nozzle (22) is driven to rotate through the rotating mechanism, and the filter screen (21) is fully washed.

6. The oil fume exhaust filtering device according to claim 1, characterized in that: The bottom surface of the preliminary filtering area (2) is in a circular arc structure, and a water receiving hole (23) is arranged at the lowest point, and the water receiving hole (23) is connected with a sewage pipe.

7. The oil fume exhaust filtering device according to claim 1, characterized in that: A driving motor (75) is installed on the outer side of the bracket (73), and the output end of the driving motor (75) is fixed with the metal brush roller (74).

8. The oil fume exhaust filtering device according to claim 1, characterized in that: The metal bristles of the metal brush roller (74) are attached to the filter screen (21).

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