Air draft structure of powder spraying room

Abstract

The utility model discloses an air draft structure of a powder spraying room, which comprises a cyclone separator, the air inlet end of the cyclone separator is connected with an air inlet pipe, and the air outlet end of the cyclone separator is connected with an air supply pipe; the filter box is connected to the end, away from the cyclone separator, of the air supply pipe, an exhaust fan is arranged on one side of the filter box, and the air outlet end of the filter box is connected with the air inlet end of the exhaust fan through an air outlet cover; and the filtering piece is arranged in the filtering box. Air containing dust is preliminarily separated through the cyclone separator, the air is discharged into the filter box from the air supply pipe, filtered on the filter element and then discharged out of the filter element, and during cleaning, the cleaning pipe can be connected with external blowing equipment, air is supplied into the filter element, back flushing cleaning can be conducted on the filter element, or pressing of the positioning pipe on the filter element is relieved, and therefore the filter element can be cleaned. The protection plate is lifted, the filter element is conveniently taken out to be cleaned or replaced, air containing dust in the powder spraying room can be pumped out, filtered and discharged, meanwhile, the dust is conveniently collected, and a filtering part is easy to clean and replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to a powder spraying room accessory technical field, specifically a kind of powder spraying room exhaust structure. BACKGROUND

[0002] Powder spraying room is a closed work space widely used in industrial coating field, mainly used for the spraying operation of powder coating, its purpose is to uniformly spray powder coating to the surface of the coated workpiece, while avoiding powder flying out, protecting the environment and protecting the health of operating personnel. Through reasonable exhaust, the powder dispersed in the air is extracted in time, so that the dust concentration in the air in the room is always kept within the safe and compliant range, to prevent safety accidents such as dust explosion, while protecting the health of operating personnel, avoiding respiratory diseases caused by long-term inhalation of powder. When exhaust, corresponding exhaust structure is configured on one side of the powder spraying room to extract and filter the powder.

[0003] For example, the existing patent No. CN217250042U discloses a kind of electrostatic powder spraying room powder recovery system, comprising: powder spraying room, the inner top surface of powder spraying room is provided with a plurality of spray guns, the inner bottom surface of powder spraying room is provided with first fan;First cyclone filter, first cyclone filter is arranged on one side of powder spraying room, second fan is arranged at the air inlet of first cyclone filter;Second filter element filter, second filter element filter is arranged on one side of first cyclone filter, filter element is arranged in second filter element filter, and the top of filter element is provided with blowback device;By setting first fan, the adsorption and collection of floating paint powder are accelerated, and then by setting first cyclone filter and second filter element filter, paint powder is filtered twice for recovery, and finally by setting start powder pump and powder pipeline, the recovered paint powder is transported to powder supply barrel for recycling.

[0004] The above-mentioned powder recovery system can be used for exhaust in powder spraying room, and can be used for dust removal during exhaust. However, the fan is arranged in multiple places, and when powder is extracted, the fan is easily worn out, and the flow of dust is affected, which is not conducive to dust collection during exhaust. In addition, the filtering part is not convenient to clean. Therefore, a kind of powder spraying room exhaust structure is provided. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of powder spraying room exhaust structure.

[0006] The utility model discloses a kind of powder spraying room exhaust structure, including cyclone separator, the air inlet end of cyclone separator is connected with air inlet pipe, the air outlet end of cyclone separator is connected with air supply pipe;

[0007] Filtering box is connected to the air supply pipe far from the air inlet end of cyclone separator, the air inlet end of cyclone separator is connected with air supply pipe;

[0008] The filter element arranged in the filter box comprises a plurality of filter cores, the inner wall of the filter box is provided with a butt joint pipe butt jointing with the end of the filter core at the position corresponding to the air outlet cover, and the side of the filter box away from the air outlet cover is provided with a perforation for the filter core to pass through.

[0009] The positioning element arranged on one side of the filter box is used for limiting the filter core, which comprises a protective cover connected to the outer wall of the filter box and a protective plate slidingly arranged on one side of the protective cover, the protective cover is slidingly connected with a positioning pipe corresponding to the filter core, the positioning pipe is threadedly connected with a positioning bolt, the side of the positioning pipe away from the filter core is connected with a cleaning pipe, and one side of the filter box is provided with a lifting element for adjusting the lifting of the protective plate.

[0010] Preferably, the bottom of the filter box is connected with an ash outlet pipe.

[0011] Preferably, the bottom of the ash outlet pipe is connected with a sealing cover.

[0012] Preferably, the air outlet cover is in communication with the inner cavity of the butt joint pipe.

[0013] Preferably, the lifting element comprises a mounting plate and an electric telescopic rod, the mounting plate is connected to the top of the protective plate, the electric telescopic rod is arranged on one side of the filter box, and the top telescopic end of the electric telescopic rod is connected to the bottom of the mounting plate.

[0014] Preferably, the end of the filter core extending into the inner cavity of the protective cover is connected with a handle.

[0015] Preferably, the end of the filter core is provided with an annular groove butt jointing with the butt joint pipe.

[0016] Preferably, the protective plate is provided with a sliding hole for the sliding of the pipe body of the positioning pipe, the positioning bolt is threadedly connected to the outer edge of the positioning pipe, and the outer wall of the protective plate is provided with a screw hole threadedly matched with the positioning bolt.

[0017] Preferably, the cleaning pipe is in communication with the inner cavity of the filter core through the positioning pipe, and a one-way valve is arranged on the cleaning pipe.

[0018] Preferably, a one-way valve is arranged on the end of the air supply pipe close to the cyclone separator.

[0019] Compared with the prior art, the air exhaust structure of the powder spraying room has the following beneficial effects:

[0020] The powder spraying room exhaust structure, through the cyclone separator, preliminarily separates the air containing dust, the air is discharged from the air supply pipe to the filter box, and after being filtered on the filter core, the air is discharged from the inside of the filter core; when cleaning, the cleaning pipe can be connected to the external blowing equipment, air is supplied to the filter core, the filter core can be back-flushed and cleaned, or the pressing of the filter core by the positioning pipe is released, the protective plate is raised, the filter core is conveniently taken out for cleaning or replacement, the air containing dust in the powder spraying room can be extracted and filtered and discharged, and the dust is conveniently collected, and the filter part is easy to clean and replace. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the utility model;

[0022] Figure 2 It is a structural schematic view of the positioning member setting position in the utility model;

[0023] Figure 3 It is a structural schematic view of the positioning member in the utility model;

[0024] Figure 4 It is a partial structural schematic view of the utility model.

[0025] In the drawings, 1, cyclone separator; 2, air inlet pipe; 3, air supply pipe; 4, filter box; 5, air extractor; 6, air outlet cover; 7, filter member; 8, positioning member; 9, ash discharge pipe;

[0026] 71, filter core; 72, butt joint pipe; 73, handle;

[0027] 81, protective cover; 82, protective plate; 83, positioning pipe; 84, positioning bolt; 85, cleaning pipe; 86, lifting member;

[0028] 861, mounting plate; 862, electric telescopic rod. DETAILED DESCRIPTION

[0029] The embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0030] The embodiments of the present disclosure will be described in detail below with reference to the drawings. The embodiments of the present disclosure will be described in detail below with reference to the drawings. It is obvious that the described embodiments are only a part of the embodiments of the present disclosure, not all the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and each detail in the specification can be modified or changed based on different views and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0031] With reference to Figures 1-4 , the powder spraying room exhaust structure in the embodiment comprises a cyclone separator 1, an air inlet pipe 2 connected to the air inlet end of the cyclone separator 1, and an air supply pipe 3 connected to the air outlet end of the cyclone separator 1.

[0032] A filter box 4 is connected to the end of the air supply pipe 3 away from the cyclone separator 1, one side of the filter box 4 is provided with an air extractor 5, and the air outlet end of the filter box 4 is connected to the air inlet end of the air extractor 5 through an air outlet cover 6.

[0033] A filter element 7 is arranged in the filter box 4, which comprises a plurality of filter cores 71, and a butt joint pipe 72 is arranged on the inner wall of the filter box 4 corresponding to the position of the air outlet cover 6 and is butt jointed with the end of the filter core 71, and a perforation for the filter core 71 to pass through is arranged on the side of the filter box 4 away from the air outlet cover 6; and

[0034] A positioning element 8 is arranged on one side of the filter box 4 for limiting the filter core 71, which comprises a protective cover 81 connected to the outer wall of the filter box 4 and a protective plate 82 slidingly arranged on one side of the protective cover 81, a positioning pipe 83 corresponding to the filter core 71 is slidingly connected to the protective cover 81, the positioning pipe 83 is threadedly connected to a positioning bolt 84, a cleaning pipe 85 is connected to the side of the positioning pipe 83 away from the filter core 71, and a lifting element 86 for adjusting the lifting of the protective plate 82 is arranged on one side of the filter box 4.

[0035] By using the above scheme, the air inlet pipe 2 is connected to the powder spraying room, so that the powder spraying room is in communication with the inner cavity of the air inlet pipe 2, the air extractor 5 is in operation, a negative pressure is generated in the filter box 4, the air inlet pipe 2 is in air extraction and air supply to the cyclone separator 1, the air containing dust is preliminarily separated, the dust is discharged from the bottom of the cyclone separator 1, the air is discharged from the air supply pipe 3 to the filter box 4, and after being filtered on the filter core 71, the air is discharged from the inside of the filter core 71.

[0036] With reference to Figure 1 , the bottom of the filter box 4 is connected to an ash discharge pipe 9 for subsequent ash discharge.

[0037] Further, the bottom of the ash discharge pipe 9 is connected to a cover, which can be removed during ash discharge, the size of the cover is selected according to actual needs, the cover is arranged according to the type of the pipe opening at the bottom of the ash discharge pipe 9, and in actual use, a valve can also be arranged at the ash discharge pipe 9.

[0038] Further, the inner cavity of the air outlet cover 6 is in communication with the butt joint pipe 72, the air in the filter core 71 flows into the air outlet cover 6 from the butt joint pipe 72, and then is extracted by the air extractor 5.

[0039] With reference to Figure 3The lifting piece 86 comprises a mounting plate 861 and an electric telescopic rod 862. The mounting plate 861 is connected to the top of the protection plate 82, and the electric telescopic rod 862 is mounted on one side of the filter box 4. The telescopic end of the electric telescopic rod 862 is connected to the bottom of the mounting plate 861. The electric telescopic rod 862 works to adjust the height of the mounting plate 861, thereby adjusting the height of the protection plate 82. After the protection plate 82 is raised, the filter core 71 is convenient to take out.

[0040] With reference to Figure 4 The end of the filter core 71 extends to the outer wall of the end of the inner cavity of the protection cover 81, and the handle 73 is connected to the outer wall. The handle 73 is convenient to operate the installation and removal of the filter core 71.

[0041] Further, the end of the filter core 71 is provided with an annular groove matched with the butt joint pipe 72. The stable butt joint of the filter core 71 and the butt joint pipe 72 is facilitated, and the air leakage gap is reduced.

[0042] Further, the protection plate 82 is provided with a sliding hole for positioning the sliding of the pipe body of the positioning pipe 83. The positioning bolt 84 is threadedly connected to the outer edge of the positioning pipe 83. The outer wall of the protection plate 82 is provided with a screw hole matched with the positioning bolt 84. The positioning pipe 83 can move in the sliding hole along the axial direction of the positioning pipe 83. After the protection plate 82 is lowered, the positioning pipe 83 is pushed to the side close to the filter core 71,

[0043] Further, the cleaning pipe 85 is communicated with the inner cavity of the filter core 71 through the positioning pipe 83, and a one-way valve is mounted on the cleaning pipe 85. The cleaning pipe 85 can be connected with an external blowing device to send air to the filter core 71, so that the filter core 71 can be cleaned by back blowing.

[0044] Further, the one-way valve is mounted on one end of the air supply pipe 3 close to the cyclone separator 1. The air in the cyclone separator 1 is sent to the air supply pipe 3. When subsequent back blowing cleaning is performed, the one-way valve can avoid air backflow.

[0045] In the present application, the one-way valve is selected from the existing common structure, and no more description is made.

[0046] In summary, the air inlet pipe 2 is connected to the powder spraying room, so that the powder spraying room is communicated with the inner cavity of the air inlet pipe 2. The air blower 5 works, a negative pressure is generated in the filter box 4, air is sucked into the cyclone separator 1 through the air inlet pipe 2, the air containing dust is preliminarily separated, the dust is discharged from the bottom of the cyclone separator 1, and the air is discharged from the air supply pipe 3 to the filter box 4, and then filtered by the filter core 71, and finally discharged from the inside of the filter core 71.

[0047] When subsequent cleaning is performed, the cleaning pipe 85 can be connected with an external blowing device to send air to the filter core 71, so that the filter core 71 can be cleaned by back blowing. Or the pressing of the filter core 71 by the positioning pipe 83 is released, the protection plate 82 is raised, and the filter core 71 is convenient to take out for cleaning or replacement.

[0048] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "intermediate", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0049] In the utility model, unless explicitly specified and limited, the first feature is "on" the second feature, which can be direct contact of the first and second features, or indirect contact of the first and second features through an intermediate medium. The meaning of "a plurality of" is at least two, for example, two, three, etc., unless explicitly and specifically limited.

[0050] In the utility model, unless explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0051] The above is only for illustrating the embodiment of the utility model, and is not used for limiting the utility model, for ordinary skilled in the art, any modification, equivalent replacement, improvement, etc. made without creative labor within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A powder spraying booth exhaust structure, characterized in that, include:

1. Cyclone separator (1), the air inlet end of the cyclone separator (1) is connected to the air inlet pipe (2), and the air outlet end of the cyclone separator (1) is connected to the air supply pipe (3); A filter box (4) is connected to the end of the air supply pipe (3) away from the cyclone separator (1). A blower (5) is provided on one side of the filter box (4). The air outlet of the filter box (4) is connected to the air inlet of the blower (5) through an air outlet cover (6). A filter element (7) is installed inside a filter box (4), comprising several filter elements (71). A connecting pipe (72) corresponding to the end of the filter element (71) is installed on the inner wall of the filter box (4) at a position corresponding to the air outlet hood (6). A perforation for the filter element (71) to pass through is provided on the side of the filter box (4) away from the air outlet hood (6). A positioning component (8) installed on one side of the filter box (4) is used to limit the filter element (71). It includes a protective cover (81) connected to the outer wall of the filter box (4) and a protective plate (82) slidably disposed on one side of the protective cover (81). A positioning tube (83) corresponding to the filter element (71) is slidably connected on the protective cover (81). The positioning tube (83) is threadedly connected to a positioning bolt (84). A cleaning tube (85) is connected to the side of the positioning tube (83) away from the filter element (71). A lifting component (86) for adjusting the lifting of the protective plate (82) is provided on one side of the filter box (4).

2. The exhaust structure for a powder spraying booth according to claim 1, characterized in that: The bottom of the filter box (4) is connected to the ash outlet pipe (9).

3. The exhaust structure for a powder spraying booth according to claim 2, characterized in that: The bottom of the ash discharge pipe (9) is connected to a cap.

4. The exhaust structure for a powder spraying booth according to claim 1, characterized in that: The air outlet hood (6) is connected to the inner cavity of the connecting pipe (72).

5. The exhaust structure for a powder spraying booth according to claim 1, characterized in that: The lifting component (86) includes a mounting plate (861) and an electric telescopic rod (862). The mounting plate (861) is connected to the top of the protective plate (82). The electric telescopic rod (862) is installed on one side of the filter box (4), and the top telescopic end of the electric telescopic rod (862) is connected to the bottom of the mounting plate (861).

6. The exhaust structure for a powder spraying booth according to claim 1, characterized in that: The filter element (71) extends to the outer wall of the end of the protective cover (81) and connects to the handle (73).

7. The exhaust structure for a powder spraying booth according to claim 1, characterized in that: The filter element (71) has an annular groove at its end that connects to the connecting pipe (72).

8. The exhaust structure for a powder spraying booth according to claim 6, characterized in that: The protective plate (82) is provided with a sliding hole for sliding of the positioning tube (83), the positioning bolt (84) is threadedly connected to the outer edge of the positioning tube (83), and the outer wall of the protective plate (82) is provided with a screw hole that is threadedly engaged with the positioning bolt (84).

9. The exhaust structure for a powder spraying booth according to claim 8, characterized in that: The cleaning tube (85) is connected to the inner cavity of the filter element (71) through the positioning tube (83), and a one-way valve is installed on the cleaning tube (85).

10. The exhaust structure for a powder spraying booth according to claim 5, characterized in that: A one-way valve is installed at one end of the air supply pipe (3) near the cyclone separator (1).

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