Spraying room with recycling function

Abstract

The spraying room with the recycling function comprises a room body and a spraying gun, at least one powder barrel and at least one collecting barrel are installed in the room body, the powder barrel communicates with the spraying gun, a detachable negative pressure barrel is installed at an opening of the collecting barrel, a collecting opening matched with the spraying gun is formed in the negative pressure barrel, an air exhaust assembly is connected to the negative pressure barrel, and the air exhaust assembly is connected with the spraying gun. The air exhaust assembly comprises a negative pressure part, a connecting pipe and a negative pressure pipe, the two ends of the connecting pipe are connected with the negative pressure part and the negative pressure pipe in a communicating mode respectively, the end, away from the connecting pipe, of the negative pressure part penetrates through the negative pressure barrel to be communicated with the collecting barrel, and the end, away from the connecting pipe, of the negative pressure pipe is communicated with an air suction opening of the fan. The device has the beneficial effects that the fan can form negative pressure in the negative pressure barrel, and powder in air can be sucked by the negative pressure barrel and conveyed into the collecting barrel to be recycled; waste materials in the negative pressure pipe and the collecting chamber can be transferred into the waste material collecting chamber under the action of the fan to be discharged in a unified manner; the device has the advantages of simplicity in operation, high recovery rate and the like.

Description

Technical Field

[0001] This application relates to the field of powder coating equipment technology, and in particular to a spray booth with a recycling function. Background Technology

[0002] A spray booth is a commonly used industrial machine for spraying coatings onto product surfaces. Products coated with this material become more aesthetically pleasing and also exhibit better corrosion resistance. Currently, spray booths use spray guns to directly apply powder coatings to the product surface, making operation very simple. However, during the spraying process, a large amount of powder is released into the air upon impact with the product, causing dust pollution, or falls into the spray booth, resulting in resource waste. Therefore, to reduce production costs and protect the environment, spray booths are generally equipped with recovery devices to collect the airborne powder.

[0003] Currently, most recycling devices in spray booths connect the exhaust duct of the fan to the collection bin, using negative pressure to recover airborne powder into the collection bin. While this method can effectively recover airborne powder, when the type of powder changes, various powders can easily adhere to the exhaust duct, forming waste and posing a risk of contaminating the collection bin. In addition, in existing technologies, replacing the collection bin mostly relies on manually disassembling the collection bin from the fan's intake port, which is quite cumbersome. Utility Model Content

[0004] One objective of this application is to provide a spray booth with a recycling function that can solve at least one of the defects in the aforementioned background art.

[0005] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: a spray booth with a recycling function, comprising a booth body and a spray gun, wherein at least one powder tank and at least one collection tank are installed inside the booth body, the powder tank is connected to the spray gun, a detachable negative pressure tank is installed at the opening of the collection tank, and the negative pressure tank is provided with a collection port that cooperates with the spray gun; an air extraction assembly is connected to the negative pressure tank, the air extraction assembly comprising a negative pressure component, a connecting pipe and a negative pressure pipe; both ends of the connecting pipe are respectively connected to the negative pressure component and the negative pressure pipe, the end of the negative pressure component away from the connecting pipe passes through the negative pressure tank and is connected to the collection tank, and the end of the negative pressure pipe away from the connecting pipe is connected to the air intake of the fan.

[0006] With the above setup, the fan can work with the air extraction components to create negative pressure in the negative pressure tank and the collection tank. Dust in the air passes through the negative pressure tank and enters the collection tank under the action of negative pressure. Subsequently, most of the dust accumulates at the bottom of the collection tank under the action of gravity, effectively reducing the probability of dust entering the negative pressure pipe with the airflow.

[0007] Preferably, the negative pressure tank has a circular cross-section, and the collection port extends outward along the tangent of the side of the negative pressure tank. This arrangement allows the powder entering the negative pressure tank to move spirally downward along the inner wall of the tank, further accelerating the flow rate of the powder and improving the recovery efficiency of the device.

[0008] Preferably, a collection chamber is installed on the collection port. The collection chamber is inclined on all four sides and enclosed in a bucket shape. The opening size of the collection chamber is larger than the size of the collection port. This configuration can increase the effective absorption range of the collection port through the collection chamber, and the powder on the collection chamber can enter the collection port under the action of suction along its inclined surface.

[0009] Preferably, the connecting pipe is curved into an arc shape, and an installation pipe is welded to one end of the connecting pipe for connecting to the negative pressure pipe. The middle part of the installation pipe is connected to the connecting pipe, and the upper part of the installation pipe is used to install the negative pressure pipe. With this configuration, the powder in the collection bucket can be blocked by bending the connecting pipe, further reducing the probability of powder entering the negative pressure pipe.

[0010] Preferably, a removable cover plate is installed at the bottom of the installation pipe, and the cover plate cooperates with the lower part of the installation pipe to form a waste bin. With this configuration, the waste adhering inside the negative pressure pipe can be collected in the waste bin under the action of gravity, preventing waste from entering the collection bucket and causing pollution. The cover plate can also be used to clean the waste bin periodically.

[0011] Preferably, a cylinder is installed on the chamber body, and a connecting block is installed on the negative pressure pipe. The extension rod of the cylinder is fixedly connected to the connecting block. With this configuration, the negative pressure pipe can be driven by the cylinder to synchronously move the negative pressure tank closer to or away from the collection tank, making the replacement of the collection tank easier.

[0012] Preferably, a waste collection chamber is provided at the upper part of the chamber, and the waste collection chamber is connected to the negative pressure pipe. With this configuration, the waste in the negative pressure pipe can enter the waste collection chamber with the airflow.

[0013] Preferably, a discharge pipe is conductively connected to the waste collection chamber, and a cyclone separator for discharging waste is connected to one end of the discharge pipe away from the waste collection chamber; the blower is installed in the cyclone separator, and the blower's air intake is connected to the discharge pipe. With this configuration, waste in the waste collection chamber can be transferred to the cyclone separator for centralized discharge via the discharge pipe.

[0014] Preferably, the housing is further provided with a collection chamber, on which a filter screen is installed. The filter screen is used to hold the collection bucket and the powder bucket. With this arrangement, waste around the collection bucket and the powder bucket can pass through the filter screen into the collection chamber, preventing waste from accumulating inside the housing and affecting environmental cleanliness. At the same time, the filter screen can also block larger impurities from entering the collection chamber, preventing blockage inside the collection chamber.

[0015] Preferably, a transmission pipe is installed on the side of the chamber, with one end of the transmission pipe connected to the collection chamber and the other end connected to the waste collection chamber. This configuration allows waste in the collection chamber to enter the waste collection chamber via the transmission pipe for unified discharge.

[0016] Compared with the prior art, the beneficial effects of this application are as follows:

[0017] The negative pressure is created inside the negative pressure tank by the cooperation of the fan and the air extraction component. Powder that is not attached to the product can be sucked into the negative pressure tank and transferred to the collection tank for storage. The connecting pipe can use its own curvature to block the powder, reducing the probability that the powder in the collection tank will enter the negative pressure pipe and become waste. When changing the collection tank, the negative pressure tank can be moved closer to or away from the collection tank by the cylinder.

[0018] Waste inside the chamber can enter the collection chamber through a filter. Waste in the negative pressure pipe and collection chamber can be transferred to the waste collection chamber for unified discharge by a fan. Waste on the inner wall of the negative pressure pipe can fall into the waste bin under gravity, preventing waste from entering the collection bucket and causing pollution. This invention can classify and store powder and waste materials, and has the advantages of simple operation and high recovery rate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the spray booth in this application. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the overall structure of the spray booth in this application. Figure 2 .

[0021] Figure 3 This is a schematic diagram of the connection structure between the collection tank and the air extraction assembly in this application.

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the collection tank and the air extraction assembly after they are connected in this application.

[0023] Figure 5 This is a schematic diagram of the connecting pipe in this application.

[0024] Figure 6 This is a partial structural diagram of the spray booth in this application.

[0025] In the diagram: 1. Building; 11. Waste collection chamber; 12. Collection chamber; 100. Powder bucket; 2. Collection bucket; 200. Cylinder; 201. Connecting block; 3. Negative pressure bucket; 31. Collection port; 300. Filter screen; 310. Collection bin; 4. Exhaust assembly; 41. Negative pressure component; 42. Connecting pipe; 43. Negative pressure pipe; 400. Transmission pipeline; 420. Installation pipe; 421. Waste bin; 422. Cover plate; 5. Cyclone separator; 500. Discharge pipe. Detailed Implementation

[0026] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0028] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0030] One aspect of this application provides a spray booth with a recycling function, such as Figure 1 , Figure 2 and Figure 3As shown, one preferred embodiment includes a chamber 1 and a spray gun. The chamber 1 contains at least one powder container 100 and at least one collection container 2. The powder container 100 is in communication with the spray gun. The product is placed between the spray gun and the collection container 2. When the product is sprayed with powder, some of the powder can enter the collection container 2 for collection. To better recover excess powder, a detachable negative pressure tank 3 is installed at the opening of the collection container 2. The negative pressure tank 3 has a collection port 31 that cooperates with the spray gun. An air extraction component 4 is connected to the collection port 31. The air extraction component 4 can cooperate with a fan (not shown) to create negative pressure within the negative pressure tank 3, facilitating the suction of powder around the collection port 31 into the collection container 2 for recovery.

[0031] Specifically, such as Figure 3 and Figure 4 As shown, the air extraction assembly 4 includes a negative pressure component 41, a connecting pipe 42, and a negative pressure pipe 43. The two ends of the connecting pipe 42 are connected to the negative pressure component 41 and the negative pressure pipe 43 respectively. The end of the negative pressure component 41 away from the connecting pipe 42 passes through the negative pressure tank 3 and is connected to the collection tank 2. The end of the negative pressure pipe 43 away from the connecting pipe 42 is connected to the air intake of the fan.

[0032] Understandably, the fan, in conjunction with the air extraction component 4, can create negative pressure in the negative pressure tank 3 and the collection tank 2. Under the action of negative pressure, dust in the air passes through the negative pressure tank 3 and enters the collection tank 2. Subsequently, most of the dust accumulates at the bottom of the collection tank 2 under the action of gravity.

[0033] Furthermore, such as Figure 3 As shown, the cross-section of the negative pressure tank 3 is circular, and the collection port 31 extends outward along the tangent of the side of the negative pressure tank 3 to ensure that the powder entering the negative pressure tank 3 can move spirally downward along the inner wall of the negative pressure tank 3, further accelerating the flow speed of the powder and improving the recovery efficiency of the device.

[0034] In this embodiment, as Figure 3 As shown, a collection chamber 310 is installed on the collection port 31. The collection chamber 310 is inclined on all four sides and enclosed in a bucket shape, and the opening size of the collection chamber 310 is larger than the size of the collection port 31. When the powder sprayed by the spray gun is relatively dispersed, it can be blocked by the chamber wall of the collection chamber 310. Then the powder slides down the inclined surface. Some of the powder will directly enter the collection port 31, while the rest of the powder will first fall onto the chamber surface at the bottom of the collection chamber 310, and then enter the collection port 31 under the action of suction.

[0035] It should be noted that in some other embodiments of this application, the collection chamber 310 and the collection port 31 may also be integrally formed, that is, the opening of the collection port 31 extends outward to form a collection chamber 310 with an inclined surface.

[0036] Furthermore, such as Figure 3and Figure 5 As shown, the connecting pipe 42 is bent into an arc shape. One end of the connecting pipe 42, which is used to connect to the negative pressure pipe 43, is welded with an installation pipe 420. The installation pipe 420 is similar to a tee structure. The middle part of the installation pipe 420 is connected to the connecting pipe 42, and the upper part of the installation pipe 420 is used to install the negative pressure pipe 43. In this way, the powder in the collection bucket 2 can be blocked by the bent connecting pipe 42, reducing the probability that the powder in the collection bucket 2 will enter the negative pressure pipe 43 with the airflow.

[0037] Specifically, such as Figure 3 and Figure 5 As shown; a removable cover plate 422 is installed at the bottom of the installation pipe 420. The cover plate 422 can cooperate with the lower part of the installation pipe 420 to form a waste bin 421. The waste bin 421 is located below the welded joint between the connecting pipe 42 and the installation pipe 420, which can prevent the waste in the negative pressure pipe 43 from entering the collection bucket 2 and causing pollution. When the waste in the negative pressure pipe 43 falls downward under the action of gravity, it can fall directly into the waste bin 421 for collection. The cover plate 422 can be used to clean the waste bin 421 regularly.

[0038] In this embodiment, as Figure 3 As shown, a cylinder 200 is installed on the chamber 1, and a connecting block 201 is installed on the negative pressure pipe 43. The telescopic rod of the cylinder 200 is fixedly connected to the connecting block 201. The operator can use the cylinder 200 to drive the negative pressure pipe 43 to move the negative pressure tank 3 closer to or away from the collection tank 2, making the replacement of the collection tank 2 easier.

[0039] Furthermore, such as Figure 6 As shown, a waste collection chamber 11 is provided at the upper part of the chamber 1. The waste collection chamber 11 is connected to the negative pressure pipe 43 so as to collect the waste in the negative pressure pipe 43 into the waste collection chamber 11.

[0040] Furthermore, the waste collection chamber 12 is connected to a discharge pipe 500. The end of the discharge pipe 500 away from the waste collection chamber 11 is connected to a cyclone separator 5 for discharging waste. A fan is installed in the cyclone separator 5, and the fan's air intake is connected to the discharge pipe 500, so as to transfer the waste in the waste collection chamber 11 to the cyclone separator 5 for centralized discharge through the discharge pipe 500.

[0041] It should be noted that during the powder coating process, some powder cannot enter the negative pressure tank 3 in time. This powder will fall to the bottom of the spray booth under the influence of gravity, which will affect the internal environment of the spray booth and increase the cleaning time for operators.

[0042] To address the aforementioned problems, in some embodiments of this application, such as Figure 1 and Figure 6As shown, a collection chamber 12 is provided at the lower part of the chamber 1, and a filter screen 300 is installed above the collection chamber 12. The filter screen 300 is used to hold the collection bucket 2 and the powder bucket 100. When the powder falls downwards, it can pass through the filter screen 300 into the collection chamber 12, preventing waste from accumulating in the chamber 1 and affecting the cleanliness of the environment. In addition, the filter screen 300 can also block larger impurities from entering the collection chamber 12, preventing blockage inside the collection chamber 12.

[0043] Furthermore, such as Figure 6 As shown, in order to avoid the accumulation of waste in the collection chamber 12, a transmission pipe 400 is installed on the side of the chamber 1. One end of the transmission pipe 400 is connected to the collection chamber 12, and the other end is connected to the waste collection chamber 11. When the fan is running, the waste in the collection chamber 12 enters the waste collection chamber 11 through the transmission pipe 400 under negative pressure for unified discharge.

[0044] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A spray booth with a recycling function, comprising a booth body (1) and spray guns, characterized in that, The chamber (1) is equipped with at least one powder tank (100) and at least one collection tank (2). The powder tank (100) is connected to the spray gun. A detachable negative pressure tank (3) is installed at the opening of the collection tank (2). The negative pressure tank (3) is provided with a collection port (31) that cooperates with the spray gun. An air extraction assembly (4) is connected to the negative pressure tank (3). The air extraction assembly (4) includes a negative pressure component (41), a connecting pipe (42), and a negative pressure pipe (43). The two ends of the connecting pipe (42) are respectively connected to the negative pressure component (41) and the negative pressure pipe (43). The end of the negative pressure component (41) away from the connecting pipe (42) passes through the negative pressure tank (3) and is connected to the collection tank (2). The end of the negative pressure pipe (43) away from the connecting pipe (42) is connected to the air intake of the fan.

2. The spray booth with recycling function as described in claim 1, characterized in that, The cross-section of the negative pressure tank (3) is circular, and the collection port (31) extends outward along the tangent of the side of the negative pressure tank (3).

3. The spray booth with recycling function as described in claim 2, characterized in that, A collection chamber (310) is installed on the collection port (31). The collection chamber (310) is inclined on all four sides and enclosed in a bucket shape. The opening size of the collection chamber (310) is larger than the size of the collection port (31).

4. The spray booth with recycling function as described in claim 1, characterized in that, The connecting pipe (42) is bent into an arc shape. An installation pipe (420) is welded to one end of the connecting pipe (42) for connecting the negative pressure pipe (43). The middle part of the installation pipe (420) is connected to the connecting pipe (42), and the upper part of the installation pipe (420) is used to install the negative pressure pipe (43).

5. The spray booth with recycling function as described in claim 4, characterized in that, The bottom of the mounting tube (420) is fitted with a removable cover plate (422), which cooperates with the lower part of the mounting tube (420) to form a waste bin (421).

6. The spray booth with recycling function as described in claim 1, characterized in that, A cylinder (200) is provided on the chamber body (1), and a connecting block (201) is provided on the negative pressure pipe (43). The telescopic rod of the cylinder (200) is fixedly connected to the connecting block (201).

7. The spray booth with recycling function as described in claim 1, characterized in that, The upper part of the chamber (1) is provided with a waste collection chamber (11), which is connected to the negative pressure pipe (43).

8. The spray booth with recycling function as described in claim 7, characterized in that, The waste collection chamber (11) is connected to a discharge pipe (500), and the end of the discharge pipe (500) away from the waste collection chamber (11) is connected to a cyclone separator (5) for discharging waste; the fan is installed on the cyclone separator (5), and the air inlet of the fan is connected to the discharge pipe (500).

9. The spray booth with recycling function as described in claim 8, characterized in that, The housing (1) is also provided with a collection chamber (12), and a filter screen (300) is installed on the collection chamber (12). The filter screen (300) is used to place the collection bucket (2) and the powder bucket (100).

10. The spray booth with recycling function as described in claim 9, characterized in that, A transmission pipe (400) is installed on the side of the housing (1). One end of the transmission pipe (400) is connected to the collection chamber (12), and the other end is connected to the waste collection chamber (11).

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