Exhaust multi-stage purification device for paint spraying and baking house

Abstract

The utility model relates to the technical field of spray-baking finish house waste gas treatment devices, and discloses a spray-baking finish house exhaust multi-stage purification device which comprises a combustion bin, a gas inlet mechanism, a gas inlet fan, a telescopic rod and a combustor, the gas inlet mechanism is communicated with the top of the combustion bin, the gas inlet fan is communicated with the left side of the gas inlet mechanism, and the telescopic rod is communicated with the combustor. The telescopic rod is installed at the inner top of the combustion bin, the combustor is installed at the inner bottom of the combustion bin, the air inlet mechanism comprises a square box, the square box is communicated with an air inlet fan, the top of the square box is communicated with an inclined pipe through a bent pipe, the top of a collecting box is communicated with a short pipe, and the short pipe is communicated with the combustion bin. According to the multi-stage exhaust purification device of the paint spraying and baking room, workers can conveniently treat carbon deposition waste chips in a centralized mode, the situation that the carbon deposition waste chips block a combustion opening of a combustor is avoided, meanwhile, after combustion and purification are completed, waste gas can be subjected to multi-stage purification and exhausted through a multi-stage filter element, and the treatment effect on the waste gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment devices for spray-bake paint booths, in particular to a multi-stage exhaust gas purification device for spray-bake paint booths. Background Art

[0002] A spray paint booth is a device used for spraying and baking coatings, and is usually used in the automotive repair and painting industries. This equipment can ensure that the coating is uniform, durable, and has a good appearance. For example, a spray paint booth exhaust gas purification combustion device proposed in Chinese patent CN 220338478 U prevents the carbon deposits on the inner wall of the combustion chamber from accumulating thicker and thicker, making it difficult for the carbon deposits to affect the combustion efficiency of the combustion chamber for the exhaust gas, thereby improving the exhaust gas purification efficiency.

[0003] In the above scheme, the carbon deposits inside the combustion chamber are cleaned to improve the combustion effect of the combustion chamber. However, the cleaned waste chips inside the combustion chamber may fall on the top of the burner and block the flame outlet of the burner, thereby affecting the service life of the burner. At the same time, the exhaust gas is directly discharged into the combustion chamber, which may lead to incomplete combustion due to too short a stay time, thereby reducing the overall exhaust gas treatment efficiency of the device. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a multi-stage exhaust purification device for a spray paint booth to solve the technical problem that the cleaned waste chips inside the above-mentioned combustion chamber may fall on the top of the burner, thereby clogging the flame nozzle of the burner, thereby affecting the service life of the burner; at the same time, the exhaust gas is directly discharged into the combustion chamber, which may lead to incomplete combustion due to too short a stay time, thereby reducing the overall exhaust gas treatment efficiency of the device.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage exhaust purification device for a spray paint room, comprising: a combustion chamber, an air intake mechanism, an air intake fan, a telescopic rod and a burner, the air intake mechanism is connected to the top of the combustion chamber, the air intake fan is connected to the left side of the air intake mechanism, the telescopic rod is installed on the inner top of the combustion chamber, the burner is installed on the inner bottom of the combustion chamber, the air intake mechanism includes a square box, the square box is connected to the air intake fan, and the top of the square box is connected to an inclined pipe through a bend pipe.

[0008] The output end of the telescopic rod is connected with a cross arm, the outside of the cross arm is fixedly connected with a cleaning brush, and the cleaning brush is slidably connected with the inner wall of the combustion chamber.

[0009] A vertical groove is provided on the left side of the combustion chamber, an annular groove is provided on the top of the burner, an exhaust pipe is connected to the top right side of the combustion chamber, and a multi-stage filter element is installed inside the exhaust pipe, and a collection box is connected to the bottom right side of the combustion chamber.

[0010] Preferably, both ends of the annular groove are respectively connected to the collecting box and the vertical groove, and the inside of the annular groove is polished, and the annular groove cooperates with the vertical groove and the collecting box to guide the exhaust gas.

[0011] Preferably, the bottom of the inclined tube faces the vertical groove, and the bottom of the inclined tube is designed with a wide mouth. The inclined tube can discharge the exhaust gas into the interior of the vertical groove, and the wide mouth design can reduce the flow pressure of the exhaust gas.

[0012] Preferably, the exhaust pipe and the combustion chamber are connected by bolts, and the multi-stage filter element inside the exhaust pipe includes a ceramic filter membrane layer, and an activated carbon layer is connected to the right side of the ceramic filter membrane layer, and a filter paper layer is connected to the right side of the activated carbon layer. The multi-stage filter element can perform multi-stage purification and discharge of the exhaust gas after combustion.

[0013] Preferably, a short tube is connected to the top of the collecting box, and the short tube is connected to the combustion chamber, so that the short tube can discharge the exhaust gas entering the collecting box into the combustion chamber again.

[0014] Preferably, the outside of the cleaning brush is connected with steel wire bristles at equal intervals, and the steel wire bristles are connected to the inner wall of the combustion chamber, so that the cleaning brush can clean the inner wall of the combustion chamber.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a multi-stage exhaust purification device for a spray paint booth, which has the following beneficial effects:

[0017] The spray paint room exhaust multi-stage purification device can increase the retention time of the exhaust gas in the combustion chamber through the cooperation of the added air intake mechanism, vertical groove, annular groove and collecting box when the exhaust gas passes through the combustion treatment chamber, and at the same time disturbs the exhaust gas to prevent the exhaust gas from being directly filtered and discharged through the exhaust pipe, thereby improving the quality of the exhaust gas combustion treatment. At the same time, the added vertical groove, annular groove and collecting box can automatically collect the waste chips cleaned by the telescopic rod, which is convenient for the staff to centrally treat the carbon deposited waste chips and avoid the carbon deposited waste chips from clogging the combustion port of the burner. At the same time, after the exhaust gas is burned and purified, it will be discharged through the multi-stage filter element for multi-stage purification, thereby improving the treatment effect of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front schematic diagram of the utility model;

[0019] Figure 2This is a front sectional view of the utility model;

[0020] Figure 3 This is a front sectional view of the combustion chamber of the utility model;

[0021] Figure 4 This is a front view of the air intake mechanism of the utility model;

[0022] Figure 5 This is a front view of the exhaust pipe and collection box of the utility model.

[0023] In the figure: 1. combustion chamber; 2. air intake mechanism; 21. square box; 22. bent pipe; 23. inclined pipe; 3. air inlet fan; 4. telescopic rod; 41. cleaning brush; 42. cross arm; 5. burner; 51. annular groove; 52. vertical groove; 6. exhaust pipe; 61. multi-stage filter element; 7. collecting box; 71. short pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a technical solution, please refer to Figure 1 and Figure 2 A multi-stage exhaust purification device for a spray paint room comprises: a combustion chamber 1, an air intake mechanism 2, an air intake fan 3, a telescopic rod 4 and a burner 5. This scheme is a structural improvement of the non-electronic component part on the basis of the exhaust gas combustion purifier in the prior art, wherein the combustion chamber 1, the air intake mechanism 2, the air intake fan 3, the telescopic rod 4 and the burner 5 are common exhaust gas combustion purification products that have been promoted in the prior art. The air intake fan 3 can guide the exhaust gas and then cooperate with the air intake mechanism 2 to discharge it into the interior of the combustion chamber 1. The telescopic rod 4 can clean the inner wall of the combustion chamber 1.

[0026] See also Figure 3 , Figure 4 and Figure 5The burner 5 can burn and purify the exhaust gas inside the combustion chamber 1, the air intake mechanism 2 is connected to the top of the combustion chamber 1, the air intake fan 3 is connected to the left side of the air intake mechanism 2, the telescopic rod 4 is installed at the inner top of the combustion chamber 1, and the burner 5 is installed at the inner bottom of the combustion chamber 1. The air intake mechanism 2 includes a square box 21, and the square box 21 can guide the exhaust gas. The square box 21 is connected to the air intake fan 3, and the top of the square box 21 is connected to an inclined pipe 23 through a bent pipe 22. The bottom of the inclined pipe 23 faces the vertical groove 52, and the bottom of the inclined pipe 23 is a wide-mouth design. The inclined pipe 23 can discharge the exhaust gas into the interior of the vertical groove 52, and the wide-mouth design can reduce the flow pressure of the exhaust gas.

[0027] The output end of the telescopic rod 4 is connected to a cross arm 42. The telescopic rod 4 can be a hydraulic telescopic arm or an electric telescopic arm. The outside of the telescopic rod 4 is heat-insulated. The cross arm 42 can transmit the cleaning brush 41. The outside of the cross arm 42 is fixedly connected to the cleaning brush 41. The cleaning brush 41 can clean the inner wall of the combustion chamber 1. The outside of the cleaning brush 41 is evenly connected with steel wire bristles, and the steel wire bristles are connected to the inner wall of the combustion chamber 1. The cleaning brush 41 can clean the inner wall of the combustion chamber 1, and the cleaning brush 41 is slidably connected to the inner wall of the combustion chamber 1.

[0028] A vertical groove 52 is provided on the left side inside the combustion chamber 1, and an annular groove 51 is provided on the top of the burner 5. The two ends of the annular groove 51 are respectively connected to the collecting box 7 and the vertical groove 52, and the inside of the annular groove 51 is polished. The annular groove 51 cooperates with the vertical groove 52 and the collecting box 7 to guide the exhaust gas. The top right side of the combustion chamber 1 is connected to the exhaust pipe 6, and a multi-stage filter element 61 is installed inside the exhaust pipe 6, which can discharge the exhaust gas.

[0029] The exhaust pipe 6 is connected to the combustion chamber 1 by bolts, and the multi-stage filter element 61 inside the exhaust pipe 6 includes a ceramic filter membrane layer, and an activated carbon layer is connected to the right side of the ceramic filter membrane layer, and a filter paper layer is connected to the right side of the activated carbon layer. The multi-stage filter element 61 can perform multi-stage purification and discharge of the exhaust gas after combustion.

[0030] The right bottom of the combustion chamber 1 is connected to a collecting box 7, and the collecting box 7 and the short tube 71 are connected to the combustion chamber 1 by bolts, so that the collecting box 7 can be disassembled for maintenance and cleaning. The top of the collecting box 7 is connected to a short tube 71, and the short tube 71 is connected to the combustion chamber 1. The short tube 71 can discharge the exhaust gas entering the collecting box 7 into the combustion chamber 1 again.

[0031] In this solution, the air inlet fan 3 is first connected to the spray paint room, and the combustion chamber 1 is installed on the outside of the spray paint room by installing a bracket or bolts. The air inlet fan 3 and the burner 5 are started, so that the exhaust gas inside the spray paint room can be extracted and discharged into the interior of the air inlet mechanism 2, and then the exhaust gas is blown into the interior of the vertical groove 52 through the elbow 22 and the inclined pipe 23. The exhaust gas is guided by the vertical groove 52 into the interior of the annular groove 51, and after entering the interior of the collecting box 7, it is discharged into the interior of the combustion chamber 1 again through the short pipe 71 to be burned by the burner 5. The smoke generated by the combustion passes through the exhaust pipe 6 and is filtered by the multi-stage filter element 61 before being discharged. When it is necessary to clean the inner wall of the combustion chamber 1, the telescopic rod 4 is started to drive the cross arm 42 and the cleaning brush 41 to descend, and then the inner wall of the combustion chamber 1 is scraped and cleaned, and the waste chips will fall into the interior of the annular groove 51. At the same time, the waste chips that fall on the top of the burner 5 will roll into the interior of the annular groove 51 through the conical design of the burner 5.

[0032] The waste chips falling into the annular groove 51 will be driven by the exhaust gas and brought into the collection box 7 for collection. The staff can remove the collection box 7 from the outside of the combustion chamber 1 and clean the waste chips inside.

[0033] When the exhaust gas passes through the combustion treatment chamber, the cooperation of the added air intake mechanism 2, the vertical groove 52, the annular groove 51 and the collecting box 7 can increase the retention time of the exhaust gas inside the combustion chamber 1, and at the same time turbulent the exhaust gas to prevent the exhaust gas from being directly filtered and discharged through the exhaust pipe 6, thereby improving the quality of the exhaust gas combustion treatment. At the same time, the added vertical groove 52, the annular groove 51 and the collecting box 7 can automatically collect the waste chips cleaned by the telescopic rod 4, so that the staff can centrally process the carbon deposited waste chips and avoid the carbon deposited waste chips from clogging the combustion port of the burner 5.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage exhaust purification device for a spray paint booth, comprising: A combustion chamber (1), an air intake mechanism (2), an air intake fan (3), a telescopic rod (4) and a burner (5), wherein the air intake mechanism (2) is connected to the top of the combustion chamber (1), the air intake fan (3) is connected to the left side of the air intake mechanism (2), the telescopic rod (4) is installed at the inner top of the combustion chamber (1), and the burner (5) is installed at the inner bottom of the combustion chamber (1), characterized in that: the air intake mechanism (2) comprises a square box (21), the square box (21) is connected to the air intake fan (3), and the top of the square box (21) is connected to an inclined pipe (23) through a bent pipe (22); The output end of the telescopic rod (4) is connected to a cross arm (42), the outside of the cross arm (42) is fixedly connected to a cleaning brush (41), and the cleaning brush (41) is slidably connected to the inner wall of the combustion chamber (1); A vertical groove (52) is provided on the left side of the combustion chamber (1), an annular groove (51) is provided on the top of the burner (5), an exhaust pipe (6) is connected to the top right side of the combustion chamber (1), a multi-stage filter element (61) is installed inside the exhaust pipe (6), and a collection box (7) is connected to the bottom right side of the combustion chamber (1).

2. A multi-stage exhaust purification device for a spray booth according to claim 1, characterized in that: The two ends of the annular groove (51) are respectively connected to the collection box (7) and the vertical groove (52), and the interior of the annular groove (51) is polished.

3. The multi-stage exhaust purification device for a spray booth according to claim 1 is characterized in that: The bottom of the inclined tube (23) faces the vertical groove (52), and the bottom of the inclined tube (23) is designed to be wide-mouthed.

4. The multi-stage exhaust purification device for a spray booth according to claim 1, characterized in that: The exhaust pipe (6) is connected to the combustion chamber (1) by bolts, and the multi-stage filter element (61) inside the exhaust pipe (6) comprises a ceramic filter membrane layer, and an activated carbon layer is connected to the right side of the ceramic filter membrane layer, and a filter paper layer is connected to the right side of the activated carbon layer.

5. The multi-stage exhaust purification device for a spray booth according to claim 1, characterized in that: The top of the collecting box (7) is connected to a short tube (71), and the short tube (71) is connected to the combustion chamber (1).

6. The multi-stage exhaust purification device for a spray booth according to claim 1, characterized in that: The outside of the cleaning brush (41) is connected with steel wire bristles at equal intervals, and the steel wire bristles are connected to the inner wall of the combustion chamber (1).

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