JPS5931384B2 - powder spray booth - Google Patents

powder spray booth

Info

Publication number
JPS5931384B2
JPS5931384B2 JP54149645A JP14964579A JPS5931384B2 JP S5931384 B2 JPS5931384 B2 JP S5931384B2 JP 54149645 A JP54149645 A JP 54149645A JP 14964579 A JP14964579 A JP 14964579A JP S5931384 B2 JPS5931384 B2 JP S5931384B2
Authority
JP
Japan
Prior art keywords
powder
booth
chamber
filter
powder recovery
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.)
Expired
Application number
JP54149645A
Other languages
Japanese (ja)
Other versions
JPS5573367A (en
Inventor
ギユンタ−・ジエ−・リシイ−
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.)
Nordson Corp
Original Assignee
Nordson Corp
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 Nordson Corp filed Critical Nordson Corp
Publication of JPS5573367A publication Critical patent/JPS5573367A/en
Publication of JPS5931384B2 publication Critical patent/JPS5931384B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2407—Filter candles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/43—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by filtering the air charged with excess material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/43—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by filtering the air charged with excess material
    • B05B14/435—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by filtering the air charged with excess material with means for cleaning the filters by gas flow, e.g. blasts of air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/90—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2273/30—Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Description

【発明の詳細な説明】 本発明は粉末塗装技術、特に粉末のスプレー塗装を行な
うためのブースに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to powder coating technology, and more particularly to a booth for spray coating powders.

粉末塗装技術は塗装業界においてかなりよく知られてい
る。Powder coating technology is fairly well known in the coating industry.

一般的に、粉末樹脂は基質すなわち被塗物に塗布されそ
の後被塗物と粉末が加熱されて粉末は融け、冷却された
後には被塗物の上に粉末が塗装された形となる。粉末は
ほとんど均一に被塗物上へ静電処理技術によつて付着さ
れる。これら静電処理技術は普通被塗物上に粉末を付着
しそのまま維持するために粉末、被塗物又はブースに静
電気を帯びさせる処理を含んでいる。これら静電技術は
周知であり、ここでは詳細に記述する必要はない。概し
て粉末処理はブース内の、被塗物に付着しない過剰スプ
レー粉末を内含するようにされた制御領域内で行なわれ
る。Generally, a powdered resin is applied to a substrate, that is, an object to be coated, and then the object to be coated and the powder are heated to melt the powder, and after cooling, the powder becomes coated on the object. The powder is deposited almost uniformly onto the substrate by electrostatic processing techniques. These electrostatic processing techniques typically involve electrostatically charging the powder, the workpiece, or the booth to deposit and maintain the powder on the workpiece. These electrostatic techniques are well known and need not be described in detail here. Powder processing generally takes place within a booth in a controlled area designed to contain excess spray powder that does not adhere to the workpiece.

多くの装置において粉末をブース内に内含することは、
ブース内に負圧を発生し、過剰スプレー粉末をブースか
ら回収及び、フィルター装置へ制御された方法で吸引す
る排気装置によつて補助される。ある装置においては集
められた過剰粉末は後の使用のために貯えられ、又ある
装置においては自動的に処理装置に還流される。粉末塗
装装置においては、いくつかの重要な、又は望ましい考
慮すべき点がある。In many devices, the inclusion of powder within the booth is
This is assisted by an exhaust system which creates a negative pressure within the booth and collects excess spray powder from the booth and draws it into the filter device in a controlled manner. In some systems, the collected excess powder is stored for later use, and in some systems it is automatically returned to the processing equipment. There are several important or desirable considerations in powder coating equipment.

それらは、安全性、効率、装置の大きさ、操作や構造の
複雑さ、色変化、清掃、保守、被塗物上に付着しない粉
末の内含及び／又は回収、等々である。これらの装置で
使用されるスプレーブースはまた、該装置の一部分であ
つて、以上の点についても又考慮しなければならない。
それ故、本発明の一般的な目的はこれらの基準に照らし
て実質的に全体として改良されたスプレーブースを提供
することである。多くの場合、装置のフイルタ一および
回収の面の部品として静止カートリツジ型フイルタ又は
典型的なバツグハウス型を使用するのがよい。これらの
型式のフイルタ一は可動部分を有してはおらず、従つて
簡単であり信頼性及び効率がよい。しかし、もしこれら
のフイルタ一／回収ユニツトが遠くに位置していると粉
末を含んだ空気はスプレーブースからダクト又は他の制
約物又は限定領域を通つてフイルタ一／回収ユニツトへ
送られる。すべてでないにしても多くの装置において、
フイルタ一／回収ユニツトはそれ自身が限定領域を構成
している。この点が従来の技術においては爆発の危険を
有するという欠点となつている。粉末塗装において使用
される樹脂は基本的に一般には引火し易い。These include safety, efficiency, equipment size, complexity of operation and construction, color change, cleaning, maintenance, inclusion and/or recovery of powders that do not adhere to the substrate, etc. The spray booth used in these devices is also part of the device and these considerations must also be taken into account.
It is therefore a general object of the present invention to provide a spray booth that is substantially generally improved in light of these criteria. In many cases, it is advantageous to use stationary cartridge type filters or a typical baghouse type filter as part of the filter and collection side of the device. These types of filters have no moving parts and are therefore simple, reliable and efficient. However, if these filter/recovery units are located remotely, powder-laden air may be routed from the spray booth through ducts or other restrictions or confined areas to the filter/recovery units. In many, if not all, devices,
The filter/recovery unit itself constitutes a confined area. This is a drawback in the prior art as it poses a risk of explosion. The resins used in powder coating are generally flammable.

粉末の形のとき、そしてある粉末と空気の比率にあると
き急速に燃焼する。従つて、若し空気／粉末混合体が閉
鎖又は制限空間内において何らかにより点火されると爆
発が起ることは理解できよう。開放された空間での粉末
の燃焼ですら不都合で生命や手足に対して危険であるけ
れども、爆発は通常もつと悲惨な結果をもたらす。従つ
て、従来の技術のこれらの制限領域は爆発の危険性があ
るので本発明の１つの目的は潜在的に爆発性の状態を作
り出すような制限領域のないブース／回収装置を提供す
ることである。本発明の装置の回収／フイルタ一部はブ
ースと一体に位置しており、従つて制限領域を構成する
ようなダクトを有する必要はない。ある種の従来型ブー
スはブースと一体型の回収装置を有し、又それらのある
ものは実質的に゛制限領域″″を減らしてはぃるけれど
も、これらの装置は複雑で製作費が高く、運転及び／又
は維持も高くつく。It burns rapidly when in powder form and at certain powder-to-air ratios. Therefore, it can be appreciated that if the air/powder mixture is ignited by something within a closed or restricted space, an explosion will occur. Although even the burning of powder in an open space is inconvenient and dangerous to life and limb, explosions usually have disastrous consequences. These restricted areas of the prior art are therefore an explosion hazard and it is therefore an object of the present invention to provide a booth/recovery device that does not have restricted areas that create potentially explosive conditions. be. The collection/filter part of the device of the invention is located integrally with the booth and therefore does not need to have any ducts forming a restricted area. Some conventional booths have collection devices that are integral to the booth, and although some of them do substantially reduce the "restricted area," these devices are complex and expensive to manufacture. , are also expensive to operate and/or maintain.

従つて、本発明の次の目的は、設計、製作、維持、運転
が簡単であつてしかも爆発性の空気／粉末混合体を含む
制限領域を削除した粉末スプレーブース／回収装置を提
供することである。粉末塗装ブースにおいて考慮すべき
他の重要なことがらは、スプレーする粉末、又は粉末の
色を迅速に変更、できる能力である。この点におぃては
、前の混合物を装置内から効果的に除き、続いて使用す
る別の粉末による汚染を防ぐことが重要である。従つて
本発明の更に次の目的は、安全で簡単な、１つの色又は
粉末から他のものへ速やかに且つ効果的に変更できる能
力を持ち、更に装置の保守はスプレー塗装作業をやめる
ことなくできるようなスプレーブース／回収装置を提供
することである。一般的に本発明は静止フィルタ一を使
用し、向上した安全性、色変更能力をコンパクトにまと
めた装置としてもたらすスプレーブース／回収装置を提
供することである。It is therefore a further object of the present invention to provide a powder spray booth/collection device that is simple to design, construct, maintain and operate, yet eliminates restricted areas containing explosive air/powder mixtures. be. Another important consideration in a powder coating booth is the powder being sprayed, or the ability to quickly change the color of the powder. In this regard, it is important to effectively remove the previous mixture from the equipment to prevent contamination with subsequent powders. It is therefore a further object of the present invention to have the ability to quickly and effectively change from one color or powder to another, safely and easily, and to maintain the equipment without stopping the spray painting operation. The objective is to provide a spray booth/collection device that can Generally, the present invention provides a spray booth/collection device that uses a static filter and provides improved safety, color change capability in a compact device.

本発明のブース／回収装置は、天井部，側壁及び端壁並
びに床部から成り、被塗装物に粉末塗装するための制御
された領域を形成するブース手段と、ブース手段の内部
と連通した粉未回収チヤンバ一と、ブース手段及び粉未
回収チヤンバ一から遮断され、粉未回収チヤンバ一から
続く開口が形成された清浄空気チヤンバ一と、粉未回収
チヤンバ一内に配設され、粉末が清浄空気チヤンバ一に
入るのを防止する静止フイルタ手段であつて、複数の静
置フイルタカートリツジから成る静止フィルタ手段と、
フイルタカートリツジを通過する空気の逆流によつてフ
イルタカートリツジの表面から粉末を周期的に除去する
手段と、清浄空気チヤンバ一内に負圧を発生させるべく
作動可能なブロワ一手段と、粉未回収チヤンバ一内の火
気が爆発を発生させるのを防止する手段であつて、粉未
回収チヤンバ一からブースに連なつて粉未回収チヤンバ
一内の火災発生圧力を爆発をおこすことなくブースに排
除する制約のない流れ通路を含む爆発防止手段とから成
つている。The booth/recovery device of the present invention comprises a ceiling, side and end walls, and a floor, and includes a booth means forming a controlled area for powder coating an object to be coated, and a powder coating communicating with the interior of the booth means. an uncollected powder chamber, a clean air chamber isolated from the booth means and the uncollected powder chamber and formed with an opening extending from the uncollected powder chamber; and a clean air chamber disposed within the uncollected powder chamber; stationary filter means for preventing air from entering the chamber, the stationary filter means comprising a plurality of stationary filter cartridges;
means for periodically removing powder from the surface of the filter cartridge by backflow of air through the filter cartridge; a blower means operable to create a negative pressure within the clean air chamber; This is a means to prevent fire in the collection chamber from causing an explosion, and is connected to the booth from the uncollected powder chamber to remove the fire-generating pressure in the unrecovered powder chamber to the booth without causing an explosion. explosion protection means including an unrestricted flow passageway.

収集領域はブースの床の断面領域を通つて直接収集領域
へ通するＩつの穴を介してスプレーブースの内側へ通じ
ている。室内に負圧を発生するためブロワ一が設けられ
ており、従つて、粉末を含んだ空気はブースの床の穴を
通つてブース直下の収集領域に引き込まれ、その後、フ
イルタ一を通して上方に清浄空気室へと吸引される。フ
イルタ一を通り非爆発性の割合に微細粉だけを含んだこ
の空気は、プロア一で清浄空気室から吸引され最終的に
▲過するためアブソリユートフイルタ一を通過する。従
来のシステムではブースと回収装置の両者のための床ス
ペースを必要としたけれども、回収装置を完全にスプレ
ーブースの床下に収めると、ブース／回収装置全体に要
求されるスペースはブース自身に必要な床スペースだけ
でよいことになる。The collection area communicates with the inside of the spray booth through two holes that pass directly into the collection area through the cross-sectional area of the floor of the booth. A blower is provided to create a negative pressure in the chamber, so that powder-laden air is drawn through holes in the floor of the booth into a collection area directly below the booth and then purified upwards through a filter. is sucked into the air chamber. This air, which passes through the filter 1 and contains only fine particles in a non-explosive proportion, is sucked from the clean air chamber by the proar 1 and finally passes through the absolute filter 1 for filtration. Traditional systems required floor space for both the booth and collection equipment, but by housing the collection equipment completely under the floor of the spray booth, the space required for the entire booth/collection equipment is less than that required by the booth itself. All you need is floor space.

ブースの床の収集領域へ通する開口の相当な断面積のた
めに爆発性の状態を生みだず制限領域０というものがな
い。空気流路中にわずかに存在する制限領域はフイルタ
一の下流であり、そこでは空気／粉末比は危険性がない
。ブースの下の完全な収集器は取りはずし可能にブース
に取り付けられており、車輪を有し、プロウに通するダ
クトへ取りはずし可能に取り付ける締め具を有している
ので、色の変更が必要になつたとき、又はフイルタ一交
換が必要になつたとき、又は収集器の保守が要求される
とき、別の収集装置を速やかに且つ効果的にブースの下
に置き、取り付けし運転することができ、従つてこれら
の作業中でもスプレー塗装は継続できる。Due to the substantial cross-sectional area of the opening leading to the collection area in the floor of the booth, there is no zero restricted area that will not create an explosive situation. The only restricted area that exists in the air flow path is downstream of the filter, where the air/powder ratio is not critical. The complete collector under the booth is removably attached to the booth, has wheels, and has fasteners that removably attach to the duct leading to the plow, necessitating a color change. or when a filter needs to be replaced or when maintenance of the collector is required, another collection device can be quickly and effectively placed under the booth, installed and operated; Therefore, spray painting can be continued even during these operations.

第１図において、本装置は粉末用のフイルタ／回収装置
から成るベース２を有するベース１と、ダクト３を通じ
てベース２に連結されたアブソリユートフイルタ５とか
ら成る。In FIG. 1, the device consists of a base 1 with a base 2 consisting of a filter/recovery device for powders and an absolute filter 5 connected to the base 2 through a duct 3.

ダクト３はベース２の１つの端部のいずれかの側を取り
外し容易な接続具３０でベースの穴２２（第２図）に接
続している。このダクト３はベース２の内部をプロア一
４に連絡し、詳しく後述するようにベース２内に負圧を
発生させる。プロア一４は、混合空気を浄化するフイル
タ一２８を持つプレナム２９に排気を行なう。プロア４
は都合上ベース１０に載置されてぃる。スプレーブース
１はスプレーするための制御領域を構成しており、通常
、天井６、向かぃ合う側壁７、向かい合う端壁３２及び
床８を含んでいる。The duct 3 is connected to a hole 22 (FIG. 2) in the base by a removable fitting 30 on either side of one end of the base 2. This duct 3 connects the inside of the base 2 to the prower 14, and generates negative pressure within the base 2, as will be described in detail later. Proar 14 exhausts the air into a plenum 29 having a filter 28 that purifies the mixed air. Proa 4
is placed on the base 10 for convenience. The spray booth 1 constitutes a control area for spraying and typically includes a ceiling 6, opposing side walls 7, opposing end walls 32 and a floor 8.

本実施例における床８は実際上回収／収集ユニツト即ち
ベース２の上部を含んでおり、従つてここでは共通の参
照番号で両要素を表示している。ブース１はベース２上
に脚で支持されている。ブース１の側壁７の１つ及び端
壁３２の両者に入口が設けられている。側壁７の入口は
スプレー装置をブース１の内側へ入れるため、又は人が
出入りするための入口である。端壁３２の２つの入口は
スプレーするために製品を出し入れする入口である。ブ
ースの天井６にはスロツト９があり頭上のコンベアーで
被塗物をブース１に出し入れするためコンベアーフツク
又は同類のものが通過できるようになつている。第２図
にブース１のベース２内にある回収／フィルターユニツ
トの詳細を示す。The floor 8 in this embodiment actually includes the upper part of the recovery/collection unit or base 2, so that both elements are designated here with a common reference numeral. A booth 1 is supported on a base 2 by legs. An inlet is provided in both one of the side walls 7 and the end wall 32 of the booth 1. The entrance in the side wall 7 is an entrance for entering the spray device into the inside of the booth 1 or for people to enter and exit. Two inlets in end wall 32 are inlets for entering and removing product for spraying. In the ceiling 6 of the booth there is a slot 9 through which a conveyor hook or the like can be passed for transporting objects to be coated into and out of the booth 1 on an overhead conveyor. FIG. 2 shows details of the collection/filter unit located in the base 2 of booth 1.

第２図は収集／回収ユニツトの内部詳細を示す部分図で
ある。ベース２は通常向かい合つた側壁２１、端壁３３
上部壁８及び底部１３から構成されている。前述のよう
に上部壁８は又ブースの床を構成している。ブース２の
向かい合つた側壁２１に沿つて、ブース１の床８の下に
清浄空気室１９があり、該清浄空気室はベースの外側壁
２１の部分、ベースの上部壁８、内側壁１１の部分と底
部壁２０との間に構成される。清浄空気室１９の上方に
は粉未回収チヤンバ一４１が配置され、該チャンバ一４
１は側壁２１、内側壁１１及び底部壁４２との間に構成
される。清浄空気室１９内に負圧を発生させ、その中に
空気を吸い込むため、各清浄空気室をダクト３（第１図
）に接続する穴２２が一方の端壁３３につけられている
。FIG. 2 is a partial view showing internal details of the collection/retrieval unit. The base 2 usually has opposing side walls 21 and end walls 33.
It is composed of an upper wall 8 and a bottom part 13. As mentioned above, the upper wall 8 also constitutes the floor of the booth. Along the opposite side walls 21 of the booth 2, below the floor 8 of the booth 1, there is a clean air chamber 19, which comprises a portion of the outer wall 21 of the base, the upper wall 8 of the base, the inner wall 11. and the bottom wall 20. An uncollected powder chamber 41 is arranged above the clean air chamber 19, and
1 is constructed between the side wall 21, the inner wall 11 and the bottom wall 42. In order to create a negative pressure in the clean air chamber 19 and draw air into it, a hole 22 is provided in one end wall 33, connecting each clean air chamber to the duct 3 (FIG. 1).

内側壁１１は床８から下方に傾斜してブースから直接清
浄空気室１９の下の粉未収集領域１４への空気流路を構
成している。The inner wall 11 slopes downwardly from the floor 8 to provide an air flow path from the booth directly to the uncollected powder area 14 below the clean air chamber 19.

中央の空気流路１２は塗装する粒子の移動する方向に細
長く延びており、ブース１の全長にわたつて延在してい
る。それは断面領域内に位置しており、爆発につながる
゛制限領域″゛を形成するような制約はしない。各室１
９には底壁２０を通して多数の穴１７が設けられている
。これらの各穴１７には靜止カートリツジ型フイルタ一
１６が付けられている。フイルタ一１６は適当な手段に
よつて室１９に取りはずし可能に取り付けられている。
本実施例においては、清浄空気室１９の底壁２０Ｑ穴及
びこれと連携のフイルタ一要素１６はユニツトの各側に
６つのフイルタ一を３層に配置し、合わせて６つのフイ
ルタ一層を構成している。各層は２列で３深（奥行）に
なつている。第２図には、各側に２つづつ、合計４つの
フイルタ一１６が見られる。６層のフィルタ一の夫々の
下に、ベース２の底１３がピラミツド型に下方にテーパ
ーしており、各ピラミツドが６つの粉未収集領域１４の
１つを構成し、ここでフイルタ一１６によつて空気から
▲過された粉末が集められる。The central air flow path 12 is elongated in the direction of movement of particles to be coated, and extends over the entire length of the booth 1. It is located within the cross-sectional area and does not constrain it to create a ``restricted zone'' that could lead to an explosion.
9 is provided with a number of holes 17 through the bottom wall 20. A locking cartridge type filter 16 is attached to each of these holes 17. Filter 16 is removably attached to chamber 19 by suitable means.
In this embodiment, the hole 20Q in the bottom wall of the clean air chamber 19 and the filter element 16 associated therewith are arranged in three layers with six filters on each side of the unit, making a total of six filter layers. ing. Each layer has two rows and three depths. In FIG. 2, four filters 16 can be seen, two on each side. Beneath each of the six layers of filters, the bottom 13 of the base 2 tapers downwardly in the shape of a pyramid, each pyramid forming one of six uncollected powder areas 14, where the filters 16 The powder that has passed from the air is then collected.

各ピラミツドの先端に、ベンチユリポンプ又は他の適当
な手段があり集められた粉末を再循環貯蔵箱又は後に使
うための貯蔵又は廃棄のための貯蔵所へ移送する。各ピ
ラミツドの先端に（図示なき）開口があり、各ヴエンチ
ユリポンプ１５を連絡している。清浄空気室１９の内側
で、ヴエンチユリ気管１８が各穴１７の上回りに位置し
ており、これをフイルタ一を通つた空気が通過する。At the tip of each pyramid there is a bench lily pump or other suitable means for transferring the collected powder to a recirculation storage box or to a repository for storage for later use or disposal. There is an opening (not shown) at the tip of each pyramid, which communicates with each venue pump 15. Inside the clean air chamber 19, a ventilator trachea 18 is located above each hole 17, through which the air passing through the filter passes.

一連のパイプ２５がベース２を横断して延在しており夫
々は４つのすべてのヴエンチユリ気管１８及びフイルタ
一１６と１列になつている。パイプ２５の夫々は、その
下側に４つの穴２６を持つており、それらが互いに夫々
のヴエンチユリ気管１８と一直線になつている。各パイ
プ２５と連携し外側壁２１の外部に載置された空気ソレ
ノイド２４が一吹きの空気を夫々のパイプ２５へ排気し
、従つてパイプ２５の下側にある穴２６から各ヴエンチ
ユリ気管１８へ排気する。一吹きはフイルタ一１６を逆
流する空気流を瞬時引き起こし、集められた粉末をフィ
ルタ一材から引きはがす。引きはがされた粉末は夫夫の
ピラミツドの収集領域１４へ落下する。ソレノイド２４
は技術的に良く知られた適当な制御機構によつて連続運
転され、その結果１度にたｙ１つの層又は列のみが清掃
される。従つてフィルタ一／制御ユニツト即ちベース２
を通る空気流に実質的な支障はない。サービスドア２７
が、フイルタ一１６の交換や手入れのために外側の側壁
２１に取り付けられている。ベース２全体は車輪２３上
に載置されており、スプレーブース１の下側から容易に
除去でき、従つて新らしい粉末や色を塗装したり、ユニ
ツトを手入れするために新らしいペース２と容易に交換
できる。もし必要ならばベースユニツトの外周とブース
とを気密にするためにゴムのガスケツトを使用すること
もできる。A series of pipes 25 extend across the base 2, each in line with all four ventilators 18 and filters 16. Each of the pipes 25 has four holes 26 on its underside, which are in line with each other and with the respective Ventilus trachea 18. An air solenoid 24 mounted on the exterior of the outer wall 21 in conjunction with each pipe 25 exhausts a puff of air into the respective pipe 25 and thus through a hole 26 in the underside of the pipe 25 into each Ventuli trachea 18. Exhaust. The puff causes a momentary flow of air back through the filter 16, drawing the collected powder away from the filter material. The separated powder falls into the collection area 14 of the husband's pyramid. Solenoid 24
is operated continuously by suitable control mechanisms well known in the art so that only one layer or row is cleaned at a time. Therefore, the filter 1/control unit or base 2
There is no substantial impediment to airflow through the. Service door 27
is attached to the outer side wall 21 for replacement and maintenance of the filter 16. The entire base 2 rests on wheels 23 and can be easily removed from the underside of the spray booth 1, thus making it easy to apply a new powder or color or to clean the unit with a new pace 2. can be exchanged for If desired, a rubber gasket may be used to provide an airtight seal between the outer periphery of the base unit and the booth.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はそのベース内に回収／収差装置を持つスプレー
塗装ブースの透視図、第２図は第１図のブースのベース
内の回収／収集装置の内側構造を示す部分図である。 主要部分の符号の説明、１・・・・・・ブース、２・・
・・・・ペース 回収／収集 ユニツト、３・・・・・
・ダクト、４・・・・・・ブロワ− ２９・・・・・・
プレナム、２８・・・・・・フイルタ一 ６・・・・・
・天井、７・・・・・・側壁、３２・・・・・・端壁、
８・・・・・・床。FIG. 1 is a perspective view of a spray painting booth having a collection/aberration device in its base, and FIG. 2 is a partial view showing the internal structure of the collection/collection device within the base of the booth of FIG. Explanation of symbols of main parts, 1...booth, 2...
...Pace Collection/Collection Unit, 3...
・Duct, 4...Blower 29...
Plenum, 28...Filter 6...
・Ceiling, 7... Side wall, 32... End wall,
8...floor.

Claims (1)

【特許請求の範囲】 １ 天井部、側壁及び端壁並びに床部から成り、被塗装
物に粉末塗装するための制御された領域を形成するブー
ス手段と、該ブース手段の内部と連通した粉末回収チャ
ンバーと、前記ブース手段及び粉末回収チャンバーから
遮断され、該粉末回収チャンバーから続く開口が形成さ
れた清浄空気チャンバーと、前記粉末回収チャンバー内
に配設され、粉末が前記清浄空気チャンバーに入るのを
防止する静止フィルタ手段であつて、複数の静置フィル
タカートリッジから成る静止フィルタ手段と、該フィル
タカートリッジを通過する空気の逆流によつてフィルタ
カートリッジの表面から粉末を周期的に除去する手段と
、前記清浄空気チャンバー内に負圧を発生させるべく作
動可能なブロワー手段と、前記粉末回収チャンバー内の
火気が爆発を発生させるのを防止する手段であつて、粉
末回収チャンバーからブースに連なつて粉末回収チャン
バー内の火災発生圧力を爆発をおこすことなくブースに
排除する制限のない流れ通路を含む爆発防止手段と、か
ら成ることを特徴とする粉末スプレーブース及び粉末回
収フィルタユニット。 ２ 前記爆発防止手段の流通路は、ブースの床部に形成
されて粉末回収チャンバーに直接開口している特許請求
の範囲第１項記載の粉末スプレーブース及び粉末回収ユ
ニット。[Scope of Claims] 1. Booth means comprising a ceiling, side walls, end walls, and floor and forming a controlled area for powder coating objects to be coated, and a powder collection communicating with the interior of the booth means. a chamber, a clean air chamber insulated from the booth means and the powder recovery chamber and formed with an opening leading from the powder recovery chamber; and a clean air chamber disposed within the powder recovery chamber to prevent powder from entering the clean air chamber. stationary filter means for preventing, the stationary filter means comprising a plurality of stationary filter cartridges, and means for periodically removing powder from the surface of the filter cartridges by backflow of air through the filter cartridges; blower means operable to create a negative pressure in the clean air chamber; and means for preventing flames in the powder recovery chamber from creating an explosion, the powder recovery chamber being connected to the booth for powder recovery; A powder spray booth and a powder recovery filter unit comprising: explosion protection means including an unrestricted flow passageway for rejecting fire-generating pressure within the chamber into the booth without causing an explosion. 2. The powder spray booth and powder recovery unit according to claim 1, wherein the flow path of the explosion prevention means is formed in the floor of the booth and opens directly into the powder recovery chamber.
JP54149645A 1978-11-20 1979-11-20 powder spray booth Expired JPS5931384B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96250778A 1978-11-20 1978-11-20
US000000962507 1978-11-20

Publications (2)

Publication Number Publication Date
JPS5573367A JPS5573367A (en) 1980-06-03
JPS5931384B2 true JPS5931384B2 (en) 1984-08-01

Family

ID=25505979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54149645A Expired JPS5931384B2 (en) 1978-11-20 1979-11-20 powder spray booth

Country Status (4)

Country Link
JP (1) JPS5931384B2 (en)
CA (1) CA1133691A (en)
DE (1) DE2946436C2 (en)
FR (1) FR2441433A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3131565C2 (en) * 1981-08-10 1984-12-13 Ransburg-Gema AG, St.Gallen Booth for spray coating objects with powder
DE3435619A1 (en) * 1984-09-28 1986-04-03 Chemische Fabrik Pfersee Gmbh, 8900 Augsburg METHOD FOR SHRINKING AND FELT-FASTENING TEXTILE MATERIAL CONTAINING KERATINE FIBERS
US4723505A (en) * 1986-03-17 1988-02-09 Nordson Corporation Powder booth
US4704953A (en) * 1986-11-12 1987-11-10 Nordson Corporation Powder spray system
DE3813259A1 (en) * 1988-04-20 1989-11-02 Nordson Corp POWDER RECOVERY DEVICE FOR POWDER COATING PLANTS OR THE LIKE
US6522770B1 (en) 1999-05-19 2003-02-18 Digimarc Corporation Management of documents and other objects using optical devices
DE102005013711B4 (en) 2005-03-24 2022-07-28 Dürr Systems Ag Plant for painting objects
CN110076038B (en) * 2019-05-15 2024-04-09 金方圆安全技术研究院（苏州）有限公司 Explosion suppression and explosion suppression gas leakage protection intelligent control system for powder processing and coating equipment
JP6773388B1 (en) * 2020-02-25 2020-10-21 パーカーエンジニアリング株式会社 Paint mist collector

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7246393U (en) * 1973-08-02 Andrasfalvy K Device for powder recovery, especially in systems for electrostatic see powder coating
DE1962698A1 (en) * 1969-12-13 1971-06-24 Buettner Schilde Haas Ag Powdered plastics electrostatic spray booth
FR2182403A5 (en) * 1972-04-27 1973-12-07 Air Ind
DE2262084C2 (en) * 1972-12-19 1981-12-10 Kálmán 7553 Muggensturm Andrásfalvy Device for powder recovery from a powder-air mixture, especially in systems for electrostatic powder coating
JPS6012886B2 (en) * 1974-07-05 1985-04-04 ダナルドソン、カムパニ、インコーパレイテイド Air cleaning device with reverse jet cleaning means
CH611184A5 (en) * 1975-09-29 1979-05-31 Gema Ag

Also Published As

Publication number Publication date
CA1133691A (en) 1982-10-19
DE2946436A1 (en) 1980-05-29
JPS5573367A (en) 1980-06-03
FR2441433A1 (en) 1980-06-13
DE2946436C2 (en) 1984-03-08
FR2441433B1 (en) 1984-12-07

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