CN110860393A - Plate and strip powder spraying device - Google Patents

Plate and strip powder spraying device Download PDF

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Publication number
CN110860393A
CN110860393A CN201911249328.6A CN201911249328A CN110860393A CN 110860393 A CN110860393 A CN 110860393A CN 201911249328 A CN201911249328 A CN 201911249328A CN 110860393 A CN110860393 A CN 110860393A
Authority
CN
China
Prior art keywords
strip
plate
spraying
powder
plate strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911249328.6A
Other languages
Chinese (zh)
Inventor
张卫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MCC Capital Engineering and Research Incorporation Ltd
Zhongye Jingcheng Engineering Technology Co Ltd
CERI Technology Co Ltd
Original Assignee
Zhongye Jingcheng Engineering Technology Co Ltd
CERI Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongye Jingcheng Engineering Technology Co Ltd, CERI Technology Co Ltd filed Critical Zhongye Jingcheng Engineering Technology Co Ltd
Priority to CN201911249328.6A priority Critical patent/CN110860393A/en
Publication of CN110860393A publication Critical patent/CN110860393A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16Arrangements for supplying liquids or other fluent material
    • B05B5/1683Arrangements for supplying liquids or other fluent material specially adapted for particulate materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/16Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • B05B12/18Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area using fluids, e.g. gas streams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0278Arrangement or mounting of spray heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/48Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths specially adapted for particulate material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00Spray booths
    • B05B16/60Ventilation arrangements specially adapted therefor

Abstract

The invention provides a plate and strip powder spraying device which comprises at least one group of spraying mechanisms, wherein each spraying mechanism comprises a plurality of spray guns which are arranged at intervals along the width direction of a plate and strip, each spray gun comprises a plurality of powder spraying spray guns and at least two air injection spray guns, the powder spraying guns are all arranged corresponding to the surface of the plate and strip, and at least one air injection spray gun is respectively and correspondingly arranged on the outer sides of two side edges of the plate and strip in the width direction. The plate strip powder spraying device provided by the invention can effectively improve the powder coating amount of powder on the edge part of the plate strip in the width direction of the surface of the plate strip, reduce the loss and waste of the powder, ensure that the powder kept on the surface of the plate strip can be uniformly attached to the surface of the plate strip, ensure the uniformity of the powder coating on the surface of the plate strip, ensure the consistent thickness of a paint film on each part of the surface of the plate strip after baking, and improve the product percent of pass of the electrostatic powder spraying plate strip.

Description

Plate and strip powder spraying device
Technical Field
The invention relates to the technical field of powder electrostatic spraying, in particular to a plate belt powder spraying device of a continuous electrostatic powder spraying technology for a plane interrupted steel plate, an aluminum plate or a steel coil or an aluminum coil.
Background
At present, in the production standard of carrying out powder continuous electrostatic spraying on intermittent steel plates, aluminum plates or steel coils and aluminum coils, after the electrostatic powder spraying is adopted and heated and baked, the thickness of a paint film on the electrostatic powder spraying is required to be uniform and consistent along the width range of the plates and the strips, and the error is very small. In the existing plate and belt continuous electrostatic powder spraying mode, electrostatic powder spray guns are adopted, and a plurality of spray guns are arranged in a row and are arranged in multiple rows for spraying; the spray guns carry powder by adopting compressed air, the powder with static electricity sprayed out of the spray guns is sprayed out by charging of the electrostatic discharge device at the head of the spray guns, and the powder with static electricity sprayed out of the spray guns is adsorbed on the surface of the metal plate strip by the attraction between the charge and the metal under the action of the static electricity.
Take one row of spray guns as an example: because a plurality of spray guns arranged in a row simultaneously spray a large amount of compressed air and powder, the compressed air quickly expands after being sprayed out of the spray guns; the spray guns in the row are close to each other, the compressed air sprayed by the spray guns in the middle row can transversely extrude and blow the compressed air and the sprayed powder sprayed by the spray guns at the edge part, so that the transverse drift velocity of the powder sprayed by the spray guns at the edge part is far greater than that of the powder sprayed by the spray guns at the middle part, therefore, the powder sprayed by the spray guns on the edge part is relatively poor in the capability of being adsorbed on the surface of the plate strip by utilizing the electrostatic charge effect, is extruded and blown to the outer parts of two sides of the plate strip in the width direction without falling on the plate strip, reduces the powder adhering amount of the powder sprayed by the spray guns on the surface of the plate strip, and causes serious powder waste, and the powder on the surface of the plate strip is uneven along the width direction of the plate strip, and the thickness of the powder on the edge of the plate strip is thinner, so that the thickness of a paint film on the surface of the plate strip is inconsistent along the width direction of the plate strip after baking, and the qualification rate of the plate strip is lower.
Disclosure of Invention
The invention aims to provide a plate strip powder spraying device which can effectively improve the powder coating amount of the upper edge part of the surface of a plate strip in the width direction in the spraying process, reduce the powder waste in the spraying process and ensure the uniform powder coating of the surface of the plate strip, thereby ensuring the consistent thickness of a paint film on the surface of the plate strip after baking and improving the qualification rate of the plate strip.
In order to achieve the above object, the present invention provides a plate and strip powder spraying apparatus, wherein the plate and strip powder spraying apparatus includes at least one group of spraying mechanisms, the spraying mechanisms include a plurality of spray guns arranged at intervals along a width direction of a plate and strip, the plurality of spray guns include a plurality of powder spray guns and at least two air injection spray guns, the plurality of powder spray guns are all arranged corresponding to a surface of the plate and strip, nozzles of the powder spray guns face the surface of the plate and strip, at least one air injection spray gun is respectively arranged corresponding to outer sides of two side edges of the plate and strip in the width direction, and nozzles of the air injection spray guns face a plane where the surface of the plate and strip is located.
The strip powder coating apparatus as defined above, wherein each of the guns is movable in a direction perpendicular to the strip to approach or move away from the strip.
The plate strip powder spraying device described above, wherein a difference between a distance between each air-jet gun and a plane of the plate strip and a distance between each air-jet gun and the plate strip is 0mm to 200 mm.
The sheet strip powder spraying device as described above, wherein the air injection pressure of each air injection lance is 0.1MPa to 0.8 MPa.
The plate strip powder spraying device is characterized in that the spraying mechanisms are provided with a plurality of groups, and the plurality of groups of spraying mechanisms are arranged at intervals along the length direction of the plate strip.
The plate strip powder spraying device comprises a spraying room, wherein an inlet is formed in the side wall of one end of the spraying room, an outlet opposite to the inlet is formed in the side wall of the other end of the spraying room, and the spraying mechanism is arranged above the inside of the spraying room.
The plate strip powder spraying device is characterized in that the top plate of the spraying room and/or the side walls of the two sides of the spraying room are/is provided with an air inlet, and the bottom plate of the spraying room is provided with a negative pressure air inlet.
The plate strip powder spraying device is characterized in that a plurality of air inlets are formed in the plate strip powder spraying device, and the plurality of air inlets correspond to two sides of the plate strip in the width direction;
the negative pressure air suction opening is formed in a center line of a bottom plate of the spraying room, and the center line is parallel to the movement direction of the plate strip.
As above slab band powder spraying device, wherein, spout the inside of room and be equipped with two air current baffle, two air current baffle symmetry is located the edge of negative pressure inlet scoop both sides on the width direction of slab band, two the top edge of air current baffle respectively with spout the internal surface of the lateral wall of room and meet, and two the lower limb of air current baffle respectively with spout the bottom plate of room and meet, two distance between the air current baffle reduces gradually from top to bottom, and two the air current baffle with the bottom plate of spouting the room meets the position and is located respectively the edge of negative pressure inlet scoop both sides on the width direction of slab band.
Compared with the prior art, the invention has the following advantages:
according to the plate strip powder spraying device provided by the invention, the air spraying guns are correspondingly arranged on the outer sides of the two side edges of the plate strip respectively, when the air spraying guns are used for spraying air, the air flow walls can be formed on the outer sides of the two side edges of the plate strip respectively, the powder sprayed by each powder spraying gun is effectively prevented from drifting towards the outer parts of the two sides of the plate strip, the powder sprayed by each powder spraying gun is kept on the surface of the plate strip, the powder coating amount of the powder on the edge part area of the surface of the plate strip in the width direction is effectively increased, the loss and waste of the powder are reduced, the powder kept on the surface of the plate strip can be uniformly attached to the surface of the plate strip, the powder coating uniformity of the surface of the plate strip is ensured, the thickness of a paint film on each part of the surface of.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic perspective view of a plate strip powder spraying device provided by the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1;
fig. 3 is a schematic view of the structure in the direction B in fig. 1.
The reference numbers illustrate:
1. a spraying mechanism;
11. a powder spraying gun;
12. a gas injection spray gun;
2. plate and strip;
3. spraying a room;
31. an inlet;
32. an outlet;
33. an air inlet;
34. a negative pressure air inlet;
4. an air flow guide plate.
Detailed Description
In order to clearly understand the technical solution, the purpose and the effect of the present invention, a detailed description of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present invention provides a sheet strip powder spraying apparatus, wherein the sheet strip powder spraying apparatus includes at least one group of spraying mechanism 1, the spraying mechanism 1 includes a plurality of spray guns arranged at intervals along the width direction of the sheet strip 2, the plurality of spray guns includes a plurality of spray guns 11 and at least two spray guns 12, the plurality of spray guns 11 are all arranged corresponding to the surface of the sheet strip 2, and the outer sides of the two sides (see fig. 3) of the sheet strip 2 in the width direction are respectively provided with at least one spray gun 12, i.e. the plurality of spray guns are arranged in a row, wherein each spray gun 11 is located in the middle corresponding to the sheet strip 2, the spray guns 12 are located on the two sides corresponding to the outer sides of the two sides of the sheet strip 2, the nozzle of each spray gun 11 faces the sheet strip 2, the nozzle of each spray gun 12 faces the plane of the surface of the sheet strip 2, which is described in detail by taking fig., the powder spraying guns 11 downwards spray powder towards the plate strip 2, the powder sprayed by the powder spraying guns 11 directly reaches the surface of the plate strip 2, the gas spraying guns 12 spray gas towards the outer sides of the edges of the two sides of the plate strip 2 (close to the edges of the two sides of the plate strip 2), the gas sprayed by the gas spraying guns 12 is not sprayed towards the surface of the plate strip 2 but is sprayed towards the lower side of the plate strip 2 from the edges of the two sides of the plate strip 2, so that airflow sprayed by the gas spraying guns 12 forms airflow walls on the two sides of the plate strip 2, the powder sprayed by the powder spraying guns 11 is kept above the plate strip 2, the powder is prevented from drifting towards the two outer sides from the edges of the two sides of the plate strip 2, the powder coating amount of the powder on the edge part of the surface of the plate strip 2 is improved, the powder loss is reduced, the powder coating uniformity of the powder on the edge part of the, the product qualification rate of the powder spraying plate belt 2 is ensured.
It should be noted that the powder spray gun 11 and the air injection spray gun 12 may be the same spray gun, the powder spray gun 11 may be obtained by introducing powder and compressed air into the spray gun, and the air injection spray gun 12 may be obtained by introducing only compressed air into the spray gun without introducing powder into the spray gun, and in the actual production process, the number of the powder spray guns 11 is selected according to the width of the plate strip 2, and the powder passage is cut off by two spray guns corresponding to the outer sides of the two sides of the plate strip 2 and adjacent to the selected outermost powder spray gun, and only compressed air is supplied, so as to obtain the air injection spray gun 12.
Further, as shown in fig. 1 and 3, in the plate strip powder spraying apparatus provided by the present invention, each spray gun can move in a direction perpendicular to the plate strip 2 to approach the plate strip 2 or depart from the plate strip 2, that is, the distance between each spray gun and the plate strip 2 can be adjusted to meet different powder and spraying requirements.
Preferably, as shown in fig. 3, the present invention provides the powder coating apparatus for a sheet strip, wherein the range of the compressed air sprayed from each air spray gun 12 is formed in a substantially umbrella shape, and the range of the powder sprayed from each powder spray gun 11 is also formed in a substantially umbrella shape, and the umbrella-shaped range of the compressed air sprayed from the air spray gun 12 can partially intersect with the umbrella-shaped range of the powder sprayed from the powder spray guns 11 located on both sides in the width direction of the sheet strip 2 when installed, so that the compressed air sprayed from the air spray gun 12 can block the powder sprayed from the powder spray guns 11.
Preferably, the difference between the distance between each air injection gun 12 and the plane of the sheet strip 2 and the distance between each powder injection gun 11 and the sheet strip 2 is 0mm to 200mm, so as to ensure that the air flow sprayed by each air injection gun 12 has proper strength and spraying form when reaching the two sides of the sheet strip 2 to effectively prevent the powder sprayed by each powder injection gun 11 from flowing away from the two sides of the sheet strip 2.
Preferably, the plate strip powder spraying device provided by the invention is characterized in that the air injection pressure of each air injection spray gun 12 is 0.1-0.8 MPa, so that the air flow sprayed by each air injection spray gun 12 has enough strength to form an air flow wall capable of blocking powder loss.
Preferably, as shown in fig. 1 and 2, the plate strip powder spraying device provided by the invention is provided with a plurality of groups of spraying mechanisms 1, wherein the plurality of groups of spraying mechanisms 1 are arranged at intervals along the length direction of the plate strip 2 so as to increase the spraying speed and further increase the production speed of the plate strip 2.
Further, as shown in fig. 1 to 3, the plate strip powder spraying apparatus provided by the present invention further includes a spraying room 3, wherein the specific spraying operation of the plate strip 2 is completed in the spraying room 3, the spraying room 3 includes two side walls at the end perpendicular to the advancing direction of the plate strip 2, two side walls at the side parallel to the advancing direction of the plate strip 2 and perpendicular to the width direction of the plate strip 2, a top plate and a bottom plate, an inlet 31 is opened on the side wall at one end of the spraying room 3, an outlet 32 opposite to the inlet 31 is opened on the side wall at the other end of the spraying room 3, the spraying mechanism 1 is disposed above the inside of the spraying room 3, the plate strip 2 enters the inside of the spraying room 3 through the inlet 31 at one end of the spraying room 3 during the spraying process, and the spraying mechanism 1 disposed above the inside of the spraying room 3 performs the spraying operation on the plate strip 2 during the movement of the plate strip 2 in the spraying room 3, and the plate strip 2 after being sprayed reaches the outside of the spraying room 3 from the outlet 32 at the other end of the spraying room 3 to carry out the next process, the spraying operation is completed in the spraying room 3, so that the powder in the spraying process can be effectively prevented from diffusing to the surrounding environment to cause harm to the health of workers, meanwhile, the plate strip 2 to be sprayed can be protected, the condition that impurities in the outside air are mixed into the powder and adhere to the surface of the plate strip 2 in the spraying process is prevented, and the spraying quality of the plate strip 2 is ensured.
Further, as shown in fig. 1 and 3, the plate strip powder spraying apparatus provided by the present invention includes an air inlet 33 disposed on a top plate of the spraying room 3 and/or on side walls of two sides of the spraying room 3, a negative pressure air suction opening 34 disposed on a bottom plate of the spraying room 3, and a negative pressure suction device disposed at the negative pressure air suction opening 34, so that an air flow inside the spraying room 3 moves from top to bottom, and powder not attached to the surface of the plate strip 2 is sucked out from the negative pressure air suction opening 34, thereby preventing the floating powder in the spraying room 3 from diffusing into the surrounding environment and causing harm to the health of workers.
Preferably, as shown in fig. 1 and 3, in the plate strip powder spraying device provided by the present invention, the plurality of air inlets 33 are formed to ensure that the air flow in the spraying room 3 can uniformly pass through each position in the spraying room 3, so as to suck the floating powder in the air at each position in the spraying room 3, and the plurality of air inlets 33 correspond to both sides of the plate strip 2 in the width direction, so as to ensure the smoothness of the air flow path in the spraying room 3, and reduce the occurrence of the situation that the air flow in the spraying room 3 collides with the plate strip 2 and the spraying mechanism 1 to change the flow direction, thereby affecting the strength of the air flow wall and taking away the powder between the spraying mechanism 1 and the plate strip 2.
Preferably, as shown in fig. 3, the plate strip powder spraying apparatus provided by the present invention, wherein the negative pressure air suction ports 34 are opened on a center line of a bottom plate of the spraying room 3 parallel to the moving direction of the plate strip 2, that is, each negative pressure air suction port 34 extends along the length direction of the spraying room 3 (that is, the length direction of the plate strip 2), two air flow guide plates 4 are provided inside the spraying room 3, one side edges of the two air flow guide plates 4 are respectively connected with the inner surfaces of the side walls at both sides of the spraying room 3, the other side edges of the two air flow guide plates 4 are connected with the bottom plate of the spraying room 3, the connection positions of the two air flow guide plates 4 and the bottom plate of the spraying room 3 are both located at both sides of the negative pressure air suction ports 34 along the width direction of the plate strip 2, that is, that the two air flow guide plates 4 are obliquely provided inside the spraying room 3 and symmetrically located at both sides of the negative pressure air suction ports 34, the upper edges of the two air flow guide plates, and the lower edges of the two air flow guide plates 4 are respectively connected with the bottom plates of the spraying room 3, which are positioned at two sides of the negative pressure air suction opening 34, along the width direction of the plate strip 2, the distance between the two air flow guide plates 4 is gradually reduced, namely the distance between the two air flow guide plates 4 is gradually reduced from top to bottom, so that air is guided to the negative pressure air suction opening 34 in the flowing process of the air in the spraying room 3, the air flow dead angle existing in the spraying room 3 is reduced, and the air at each position in the spraying room 3 can be sucked out from the negative pressure air suction opening 34 (namely discharged from the negative pressure air suction opening 34).
The negative pressure suction opening 34 may be provided in plurality, and the air flow guide plate 4 may be omitted, which is not limited in the present invention.
In the above embodiments and the accompanying drawings, the case where the strip is disposed in the transverse direction (i.e., disposed horizontally) is taken as an example for description, and in addition, the strip may be in a vertical state or inclined at an angle (the angle is not equal to 90 °) to the horizontal plane, and the directions of the powder spray guns 11 and the air spray guns 12 in the spraying mechanism are adjusted according to the direction of the corresponding strip, so that the direction of the strip is always vertical or nearly vertical, and the present invention is not limited thereto.
Compared with the prior art, the invention has the following advantages:
according to the plate strip powder spraying device provided by the invention, the air spraying guns are correspondingly arranged on the outer sides of the two side edges of the plate strip respectively, when the air spraying guns are used for spraying air, the air flow walls can be formed on the outer sides of the two side edges of the plate strip respectively, the powder sprayed by each powder spraying gun is effectively prevented from drifting towards the outer parts of the two sides of the plate strip, the powder sprayed by each powder spraying gun is kept on the surface of the plate strip, the powder coating amount of the powder on the edge part area of the surface of the plate strip in the width direction is effectively increased, the loss and waste of the powder are reduced, the powder kept on the surface of the plate strip can be uniformly attached to the surface of the plate strip, the powder coating uniformity of the surface of the plate strip is ensured, the thickness of a paint film on each part of the surface.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.

Claims (9)

1. The plate and strip powder spraying device is characterized by comprising at least one group of spraying mechanisms, wherein each spraying mechanism comprises a plurality of spray guns which are arranged at intervals along the width direction of a plate strip, each spray gun comprises a plurality of powder spraying guns and at least two air injection spray guns, the powder spraying guns are all arranged corresponding to the surface of the plate strip, the nozzle of each powder spraying gun faces the surface of the plate strip, at least one air injection spray gun is correspondingly arranged on the outer sides of two side edges in the width direction of the plate strip respectively, and the nozzle of each air injection spray gun faces the plane where the surface of the plate strip is located.
2. A strip powder coating apparatus according to claim 1, wherein each lance is movable in a direction perpendicular to the strip to move towards and away from the strip.
3. A strip powder coating apparatus according to claim 1 or 2, wherein the difference between the distance between each spray gun and the plane of the strip and the distance between each spray gun and the strip is 0mm to 200 mm.
4. A strip powder spraying apparatus according to claim 1, wherein the air injection pressure of each air injection lance is 0.1MPa to 0.8 MPa.
5. A strip powder coating apparatus according to claim 1, wherein the coating means is provided in a plurality of groups, the groups being spaced apart along the length of the strip.
6. A strip powder spraying apparatus according to claim 1, further comprising a spraying chamber, wherein an inlet is formed in a side wall of one end of the spraying chamber, an outlet opposite to the inlet is formed in a side wall of the other end of the spraying chamber, and the spraying mechanism is disposed above an inside of the spraying chamber.
7. A plate and strip powder spraying device as claimed in claim 6, wherein the top plate of the spraying chamber and/or the side walls on both sides of the spraying chamber are provided with air inlets, and the bottom plate of the spraying chamber is provided with a negative pressure air suction opening.
8. A plate and strip powder spraying device as claimed in claim 7, wherein a plurality of air inlets are formed in the plate and strip, and the plurality of air inlets correspond to both sides of the plate and strip in the width direction;
the negative pressure air suction opening is formed in a center line of a bottom plate of the spraying room, and the center line is parallel to the movement direction of the plate strip.
9. A plate belt powder spraying device as claimed in claim 7, wherein two air flow guide plates are provided inside the spraying chamber, the two air flow guide plates are symmetrically provided at both sides of the negative pressure air suction opening in the width direction of the plate belt, upper edges of the two air flow guide plates are respectively connected to inner surfaces of side walls of the spraying chamber, lower edges of the two air flow guide plates are respectively connected to a bottom plate of the spraying chamber, a distance between the two air flow guide plates is gradually reduced from top to bottom, and connection positions of the two air flow guide plates and the bottom plate of the spraying chamber are respectively located at both sides of the negative pressure air suction opening in the width direction of the plate belt.
CN201911249328.6A 2019-12-09 2019-12-09 Plate and strip powder spraying device Pending CN110860393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911249328.6A CN110860393A (en) 2019-12-09 2019-12-09 Plate and strip powder spraying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911249328.6A CN110860393A (en) 2019-12-09 2019-12-09 Plate and strip powder spraying device

Publications (1)

Publication Number Publication Date
CN110860393A true CN110860393A (en) 2020-03-06

Family

ID=69658741

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911249328.6A Pending CN110860393A (en) 2019-12-09 2019-12-09 Plate and strip powder spraying device

Country Status (1)

Country Link
CN (1) CN110860393A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114950827A (en) * 2022-05-05 2022-08-30 北京京诚之星科技开发有限公司 Powder electrostatic spraying room

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114950827A (en) * 2022-05-05 2022-08-30 北京京诚之星科技开发有限公司 Powder electrostatic spraying room

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