CN106140439B - Powdery paints closed cycle flour milling unit - Google Patents

Abstract

The invention discloses a kind of powdery paints closed cycle flour milling units, including sequentially connected flour mill, cyclonic separation unit, bag filter and air-introduced machine, wherein：It further include the evaporator being arranged after air-introduced machine, the external refrigeration compressor set of evaporator, the evaporator is connected to flour mill, the evaporator is also connected with the tabletting cooling crusher before flour mill, pass through above-mentioned setting, gas and dust all recycle in milling machine equipment, or collect recycling with dust arrester, avoid atmosphere pollution, raw material availability is high, and the temperature of refrigeration compressor set added in can making entirely to recycle reduces, and reduces the temperature of flour mill, the lasting raising for avoiding milling built-in temperature, ensures the quality of the coating of output.

Description

Powdery paints closed cycle flour milling unit

Technical field

The present invention relates to a kind of powder coating processing device, more particularly to a kind of powdery paints closed cycle flour milling unit.

Background technology

Powdery paints is widely used in each neck because of the advantages that it is free of organic solvent, and the feature of environmental protection is good, storage, convenient transportation Domain.

Currently, to disclose a kind of automation of production powdery paints integrated for the Chinese patent of Publication No. CN105599168A Device, it includes mixing machine, extruder, tablet press machine, flour mill and dust cleaning case, it is characterised in that：The extruder is equipped with one A discharge terminal, the mixing machine are connected to by the discharge terminal with the extruder, and the feeding mouth of the tablet press machine is squeezed with described The discharge port for going out machine is fixedly connected, and the discharge port of the tablet press machine is connect by conveying pipeline with the flour mill, the milling Set between machine and the dust cleaning case there are one cyclone separator, set on the cyclone separator there are one powder feeding mouth, one Dust discharge port and a powder discharge port, the powder feeding mouth of the cyclone separator are connected with the discharge port of the flour mill Logical, the dust cleaning case is connected by the cyclone separator with the flour mill, the dust cleaning case and the cyclone separator Dust discharge port be connected.

But the exhaust gas of this integrating device and the dust not filtered are directly arranged outwardly after air-introduced machine, are generated to environment Pollution, while in order to meet the needs of environmental requirement, exhaust outlet need the high altitude discharge for 15 meters or more, equipment occupation space and It is higher to manufacture degree of difficulty.

Invention content

The object of the present invention is to provide a kind of no discharge, the powdery paints closed cycles for environmental protection, improving efficiency, reducing waste Flour milling unit.

The present invention above-mentioned technical purpose technical scheme is that：A kind of powdery paints closed cycle Flour milling unit, including sequentially connected flour mill, cyclonic separation unit, bag filter and air-introduced machine are set before the flour mill It is equipped with tabletting cooling crusher, wherein：Further include the evaporator being arranged after air-introduced machine, the external refrigerant compression of evaporator Unit, the evaporator are connected to flour mill, and the evaporator is also connected with tabletting cooling crusher.

By using above-mentioned technical proposal, gas and dust all recycle in flour milling unit equipment, or use dust arrester Recycling is collected, relative to traditional flour mill, this equipment not will produce the discharge of gas and useless dust, avoid air Pollution, the material of all entrance all can again be utilized by collecting again, and raw material availability is high；Refrigeration compressor set is added The temperature in entirely recycling can be made to reduce, powder and gas is avoided to rub with positions such as pipe side walls in moving process in equipment Heating is wiped, causes temperature excessively high, ensure that the safety of process, while also avoiding temperature excessively high, cause shopwork temperature It is excessively high, can also it be improved to the operating condition of employee；The cold air part that evaporator comes out returns to flour mill, but generates Cold air can be more than the cold air of cycle in flour milling unit, extra cold air can be cooled down faster for cooling down crusher Material on crusher, makes full use of the energy；It is most of direct by the mixture of gas after cooling and micro dust Flour mill is returned to by pipeline, on the one hand fine dusts can be recycled, material makes full use of, and on the other hand can also reduce The temperature of flour mill avoids the lasting raising of milling built-in temperature, ensures the quality of the coating of output.

The present invention is further arranged to：It is provided with three-way pipe between the evaporator and flour mill, the three of the three-way pipe A hole respectively leads to evaporator, tabletting cooling crusher and flour mill.

By using above-mentioned technical proposal, gas and little power is mixed after the cooling for being come out evaporator using three-way pipe Object shunting is closed, is connected firmly, good seal performance.

The present invention is further arranged to：The cyclopneumatic separator group is divided into three-level, is followed successively by primary cyclone, two level Related air valve is arranged in cyclone separator, three-stage cyclone separator, the cyclonic separation unit lower section.

Dust, more thorough, the Guan Feng of collection are collected using multi-cyclone by using above-mentioned technical proposal Valve seal performance is good, and inleakage is small, can all collect most dust, can be used for recycling, avoid outer row, It is more environmentally-friendly.

The present invention is further arranged to：The pass air valve includes the sealing valve set gradually and baiting valve, the sealing When valve is closed, baiting valve is opened, and the material between sealing valve and baiting valve is discharged, and after the baiting valve is closed, sealing valve is opened, The material being deposited at sealing valve is sent between baiting valve and sealing valve.

By using above-mentioned technical proposal, closes the sealing valve of air valve and baiting valve keeps at least one and is in seal shape State ensure that the sealing performance of cyclone separator, and blanking ability is stronger, while the feelings of air leakage will not occur in discharge Condition.

The present invention is further arranged to：It is provided with below pass air valve below the primary cyclone and turns sieve, institute It states and turns sieve and be additionally provided with mini-sized blender and additive feeder between air valve closing, described turn of sieve includes product outlet and slightly Powder exports, and the material that coarse powder outlet is sifted out returns to flour mill and is milled again, is provided with below the product outlet automatic Material collecting device.

By using above-mentioned technical proposal, additive feeder can increase additive, then profit below the air valve of pass So that powder is uniformly mixed with additive with mini-sized blender, ensure the additive effect of additive, goes to receive using automatic collecting device Collect finished product, is artificially collected relative to traditional, it is more convenient, while the material for turning the coarse powder outlet discharge of sieve can be collected into mill Powder machine continues to be milled, and to make non-compliant material be crushed again, makes up to suitable grain size.

The present invention is further arranged to：The automatic collecting device includes discharge nozzle and material receiving, and the discharge nozzle is led Notch on logical product outlet and material receiving, the material receiving lower section are provided with automatic feed mechanism, the auto-feed Mechanism includes watching of advancing of the picking-up container that is set on cradle of the cradle with idler wheel, uniform intervals, driving cradle interval Motor is taken, hollow out is arranged among the cradle, and cradle bottom is provided with the push disk for pushing picking-up container rise and fall, described Push disk moves under the driving of cylinder.

By using above-mentioned technical proposal, after what is be spaced on cradle piles picking-up container, cradle will be in driving portion Under the action of be spaced travel forward, and push rising that the picking-up container on the cradle can be by push disk and material receiving It matches, to which picking-up container realizes the powder received from discharge nozzle out, after completing rewinding, push disk drives under picking-up container It drops and picking-up container is again positioned on cradle, cradle will continue to travel forward under under the driving of driving portion later Cradle stops driving again after a picking-up container for waiting for splicing is in the top of push disk, and cylinder will be driven again on push disk It rises, and so on, realizes the collection automatically and continuously to powder, and only a worker is needed to carry out to machine in the process again The monitoring of device can complete the purpose of safety in production, and production efficiency is high, and cost of labor is low.

The present invention is further arranged to：The tabletting cooling crusher includes tablet press mechanism, conveyer belt, cooling body and breaks Broken mechanism, the cooling body include the multiple cooling fans being arranged on a moving belt and are arranged above multiple cooling fans Cooling dome, the cooling dome is connected with the gas outlet of evaporator, the external cooling-water machine of tablet press mechanism, and the cooling-water machine uses Refrigeration compressor set is freezed.

By using above-mentioned technical proposal, material is pressed into piece by tablet press mechanism, is pressed into being transferred to using conveyer belt after piece Crushing mechanism carries out break process, and when tabletting conveys on a moving belt, the wind for being set to the cooling fan blowout above conveyer belt is straight Connect and tabletting cooled down, compared to it is existing will reduce transport mechanism on temperature come realize to tabletting cool down by way of imitating Fruit is more preferable, and cooling dome is arranged in cooling fan, and cooling dome is connected to evaporator, and transmission is after cooling by evaporator Gas drives cold air in cooling dome in the case where cooling fan is opened, using cooling fan by cold wind with certain speed Tabletting is blowed to, is directly cooled down to tabletting；Tablet press mechanism is cooled down using cooling-water machine, can effectively reduce the temperature of pressure roller Degree, the high-temperature material squeezed out to extruder cool down.

The present invention is further arranged to：The evaporator includes two side and two cleaning doors, and the cleaning door is articulated with On side wall, the cleaning door is fixed with side wall using hand-opened type fixing piece, and the hand-opened type fixing piece includes being set on side wall Fixed station and the hook on cleaning door, be hinged with locking bar on the fixed station, lock ring be hinged on the locking bar, it is fixed When part opening state, for locking bar perpendicular to side wall, lock ring turns to hook position, rotating rod lock, and lock ring is fastened with hook.

It, can be with when staff needs to carry out cleaning to evaporator internal coil by using above-mentioned technical proposal Directly stirring locking bar using hand makes fixing piece open, and to which lock ring and hook can disengage, cleaning door is then opened, without using work Tool, it is easy to operate.

The present invention is further arranged to：The lock ring is set as "U" shaped, and connecting rod, lock ring are inserted in the locking bar Both ends spiral shell be threaded through the both ends of connecting rod, and screw thread is provided on lock ring, each junction in connecting rod passes through two Adjusting nut positioned at both sides is fixed.

By using above-mentioned technical proposal, the setting of adjusting nut keeps the length of lock ring adjusted, improves lock The adaptability of ring, while by two adjusting nuts, so that adjusting nut is fixed from former and later two directions, improving lock ring Crystallized ability after adjusting.

The present invention is further arranged to：The air-introduced machine includes blower motor and blower cover, the blower motor and air inducing Cover uses hinge connection, and the hinge connection includes being respectively arranged at the hinge plate of blower motor and blower cover, the hinge plate On be provided with threaded hole, the threaded hole is uniformly distributed on hinge plate circumference, and the threaded hole is connected to using lifting bolt Together.

By using above-mentioned technical proposal, when needing to clean air-introduced machine, it is only necessary to back out lifting bolt so that blower motor It is separated with blower cover hinge plate, then phase is cleaned in requisition for clean position, cleaning is completed to close back blower cover to draw Before wind turbine, the recovery that air-introduced machine can be completed in lifting bolt is screwed on, it is convenient for disassembly and assembly, convenient for cleaning.

In conclusion the invention has the advantages that：

1, gas and the not outer row of dust, totality recycle, avoid exhaust gas from polluting air, avoid simultaneously It needs that very high exhaust chimney is arranged, reduces the difficulty of equipment installation；

2, multistage air inducing separator and bag filter absorb the efficient of dust, and the dust being collected into can be used as original Material carries out secondary production, avoids wasting；

3, dismantled and assembled clean evaporator and air inducing function conveniently clean device, avoid using contaminated equipment for a long time；

4, circulating cooling, cooling effect chamber can carry out entire flour mill using refrigeration compressor set, powder is being processed It will not be denaturalized in the process because of high temperature, ensure product quality.

Description of the drawings

Fig. 1 is the principle schematic of embodiment；

Fig. 2 is the structural schematic diagram at embodiment transfer sieve and automatic collecting device；

Fig. 3 is the structural schematic diagram that tabletting cools down crusher in embodiment；

Fig. 4 is the structural schematic diagram of evaporator in embodiment；

Fig. 5 is the exploded perspective view of fixing piece between evaporator cleaning door and side wall in embodiment；

Fig. 6 is the structural schematic diagram of air-introduced machine in embodiment.

In figure：1, flour mill；2, cyclonic separation unit；21, primary cyclone；22, secondary cyclone；23、 Three-stage cyclone separator；3, air-introduced machine；31, blower motor；32, blower cover；33, hinge plate；34, lifting bolt；4, cloth bag removes Dirt device；5, evaporator；51, side wall；52, cleaning door；53, it links up with；54, fixed station；55, locking bar；56, lock ring；57, connecting rod； 58, adjusting nut；6, tabletting cools down crusher；61, tablet press mechanism；62, conveyer belt；63, cooling body；64, crushing mechanism； 65, cooling fan；66, cooling dome；7, three-way pipe；8, turn sieve；81, product outlet；82, coarse powder exports；9, automatic collecting device； 91, discharge nozzle；92, material receiving；93, cradle；94, picking-up container；95, servo motor；96, disk is pushed；97, cylinder；10, it makes Cold compression unit；11, air valve is closed；12, sealing valve；13, baiting valve；14, mini-sized blender；15, additive feeder；16、 Cooling-water machine.

Specific implementation mode

Below in conjunction with attached drawing, invention is further described in detail.

Embodiment：

A kind of powdery paints closed cycle flour milling unit passes sequentially through flour mill 1, whirlwind point since the charging referring to Fig.1 Disembark group 2, bag filter 4, air-introduced machine 3 and evaporator 5 and bag filter 4, evaporator 5 by refrigeration compressor set 10 into Row refrigeration cooling, is provided with three-way pipe 7 between evaporator 5 and flour mill 1, three-way pipe 7 is a part of by gas distribution after cooling Flour mill 1 is returned to, flour mill 1 is cooled down, milling built-in temperature is reduced, before another opening of three-way pipe 7 leads to flour mill 1 Tabletting cooling crusher 6 connect, the material on cooling tabletting cooling crusher 6.

Referring to Figures 1 and 2, cyclonic separation unit 2 divides for three-level, is followed successively by primary cyclone 21, two level whirlwind point From device 22, three-stage cyclone separator 23, related air valve is arranged in primary cyclone 21 and 22 lower section of secondary cyclone 11, it includes sealing valve 12 and the baiting valve 13 positioned at 12 lower section of sealing valve to close air valve 11, and sealing valve 12 and baiting valve 13 are all adopted It is controlled with solenoid valve, when sealing valve 12 is closed, baiting valve 13 is opened, and the material between sealing valve 12 and baiting valve 13 is arranged Go out, after baiting valve 13 is closed, sealing valve 12 is opened, and the material being deposited at sealing valve 12 is sent to baiting valve 13 and sealing valve 12 Between.

The lower section of baiting valve 13 is additionally provided with additive feeder 15, at the same be additionally provided with mini-sized blender 14 make additive with Powder is uniformly mixed, and lower section is arranged again turns 8 material screenings of sieve, and it includes product outlet 81 and coarse powder outlet 82, coarse powder outlet to turn sieve 8 82 materials sifted out are sent back to flour mill 1.

With reference to Fig. 2, automatic collecting device 9 includes the discharge nozzle 91 being connect with product outlet 81, picking-up container 94, material receiving 92 and automatic feed mechanism, automatic feed mechanism includes the driving portion that the cradle 93 with idler wheel drives cradle 93, driving portion Using servo motor 95, cradle 93 uniformly places four picking-up containers 94, and 93 vertical direction hollow out of cradle is arranged, and is set on bottom surface It is equipped with push disk 96 to contact box for feeding odd with material receiving 92 under the driving of cylinder 97, the flange on material receiving 92, which covers, to be connect On hopper 94, push disk 96 is fallen after each picking-up container 94 has expired, under cradle 93 makes under the driving of servo motor 95 One picking-up container 94 is directed at material receiving 92, then starts rewinding work.

Referring to Figure 1 and Figure 3, the tabletting cooling crusher 6 before flour mill 1 includes tablet press mechanism 61, conveyer belt 62, cooler Structure 63 and crushing mechanism 64, cooling body 63 include that multiple cooling fans 65 are arranged on conveyer belt 62 and are arranged in cooling fan Cooling dome 66 on 65, cooling dome 66 are connected with the venthole of evaporator 5, and the preforming roller in tablet press mechanism 61 is hollow, by cold Water dispenser 16 carries out water circulating cooling, and cooling-water machine is cooled down using refrigeration compressor set 10.

With reference to Fig. 4 and Fig. 5, evaporator 5 includes two side walls 51 and two cleaning doors 52 being hinged on side wall 51, cleaning Door 52 is fixed with side wall 51 using hand-opened type fixing piece, and hand-opened type fixing piece includes the hook 53 being set on cleaning door 52 and position In being hinged with locking bar 55 on the fixed station 54 on side wall 51, fixed station 54, lock ring 56, fixing piece open shape are hinged on locking bar 55 When state, for locking bar 55 perpendicular to side wall 51, lock ring 56 turns to 53 positions of hook, rotating rod lock 55, lock ring 56 and 53 fastening of hook, Lock ring 56 is set as "U" shaped, and connecting rod 57 is inserted in locking bar 55, and the both ends spiral shell of lock ring 56 is threaded through the two of connecting rod 57 End, and screw thread is provided on lock ring 56, the adjusting nut 58 that each junction in connecting rod 57 is located at both sides by two It is fixed.

With reference to Fig. 6, air-introduced machine 3 includes blower motor 31 and blower cover 32, and blower motor 31 and blower cover 32 use hinge Connection, hinge connection includes being respectively arranged at the hinge plate 33 of blower motor 31 and blower cover 32, and spiral shell is provided on hinge plate 33 Pit, threaded hole are uniformly distributed on 33 circumference of hinge plate, and threaded hole is linked together using lifting bolt 34, and cleaning is needed to draw When wind turbine 3, it is only necessary to back out lifting bolt 34 so that blower motor 31 and 32 hinge plate 33 of blower cover separate, then to phase It is cleaned in requisition for clean position, cleaning is completed before blower cover 32 is closed back blower motor 31, screws on lifting bolt 34 i.e. The recovery of air-introduced machine 3 can be completed, it is convenient for disassembly and assembly, convenient for cleaning.

This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this It is all protected by Patent Law in the right of invention.

Claims (8)

1. a kind of powdery paints closed cycle flour milling unit, including sequentially connected flour mill（1）, cyclonic separation unit (2), cloth Bag dust collector (4) and air-introduced machine (3) are provided with tabletting cooling crusher before the flour mill（6）, it is characterised in that：Further include The evaporator (5) being arranged after air-introduced machine (3), the evaporator（5）External refrigeration compressor set（10）, the evaporator (5) and flour mill（1）Connection, the evaporator (5) are also connected with tabletting cooling crusher (6), the cyclonic separation unit (2) It is divided into three-level, is followed successively by primary cyclone (21), secondary cyclone (22), three-stage cyclone separator (23), it is described Related air valve is set below cyclonic separation unit（11）, the pass air valve（11）Including the sealing valve set gradually（12）With Baiting valve（13）, the sealing valve（12）When closing, baiting valve（13）It opens, by sealing valve（12）And baiting valve（13）Between object Material discharge, the baiting valve（13）After closing, sealing valve（12）It opens, sealing valve will be deposited in（12）The material at place is sent to blanking Valve（13）And sealing valve（12）Between.

2. a kind of powdery paints closed cycle flour milling unit according to claim 1, it is characterised in that：The evaporator (5) and flour mill（1）Between be provided with three-way pipe (7), three holes of the three-way pipe (7) respectively lead to evaporator (5), tabletting Cooling crusher (6) and flour mill（1）.

3. a kind of powdery paints closed cycle flour milling unit according to claim 1, it is characterised in that：The one cyclonic It is provided with below pass air valve (11) below separator (21) and turns sieve, also set between described turn of sieve (8) and pass air valve (11) It is equipped with mini-sized blender（14）With additive feeder（15）, described turn of sieve (8) includes product outlet (81) and coarse powder outlet (82), the material that coarse powder outlet (82) is sifted out returns to flour mill（1）It is milled, is set below the product outlet (81) again It is equipped with automatic collecting device (9).

4. a kind of powdery paints closed cycle flour milling unit according to claim 3, it is characterised in that：The automatic material receiving Device (9) includes discharge nozzle (91) and material receiving (92), and product outlet (81) and material receiving is connected in the discharge nozzle (91) (92) notch on, material receiving (92) lower section are provided with automatic feed mechanism, and the automatic feed mechanism includes that band rolls Cradle (93), the uniform intervals of wheel are set to picking-up container (94) on cradle (93), driving cradle (93) is spaced and advances Servo motor (95), the intermediate hollow out setting of the cradle (93), cradle (93) bottom, which is provided with, pushes picking-up container (94) The push disk (96) of rise and fall, the push disk (96) move under the driving of cylinder (97).

5. a kind of powdery paints closed cycle flour milling unit according to claim 1, it is characterised in that：The tabletting cooling Crusher (6) includes tablet press mechanism (61), conveyer belt (62), cooling body (63) and crushing mechanism (64), the cooling body (63) including the multiple cooling fans (65) being arranged on conveyer belt (62) and setting above multiple cooling fans (65) Cooling dome (66), the cooling dome (66) and evaporator（5）Conducting, the tablet press mechanism（61）External cooling-water machine（16）, described Cooling-water machine（16）Using refrigeration compressor set（10）Refrigeration.

6. a kind of powdery paints closed cycle flour milling unit according to claim 1, it is characterised in that：The evaporator （5）Including two side (51) and two cleaning doors (52), the cleaning door (52) is articulated on side wall (51), the cleaning door (52) it is fixed using hand-opened type fixing piece with side wall (51), the hand-opened type fixing piece includes the hook being set on side wall (51) (53) and the fixed station (54) on the cleaning door (52) locking bar (55), the locking bar, are hinged on the fixed station (54) (55) it is hinged with lock ring (56) on, when fixing piece opening state, locking bar (55) is turned to perpendicular to cleaning door (52), lock ring (56) Link up with (53) position, rotating rod lock (55), lock ring (56) and hook (53) fastening.

7. a kind of powdery paints closed cycle flour milling unit according to claim 6, it is characterised in that：The lock ring (56) It is set as "U" shaped, is inserted with connecting rod (57) in the locking bar (55), the both ends spiral shell of lock ring (56) is threaded through connecting rod (57) Both ends, and screw thread is provided on lock ring (56), each junction in connecting rod (57) passes through two tune for being located at both sides It is fixed to save nut (58).

8. a kind of powdery paints closed cycle flour milling unit according to claim 1, it is characterised in that：The air-introduced machine (3) include blower motor (31) and blower cover (32), the blower motor (31) and blower cover (32) use hinge connection, described Hinge connection includes being respectively arranged at the hinge plate (33) of blower motor (31) and blower cover (32), is set on the hinge plate (33) It is equipped with threaded hole, the threaded hole is uniformly distributed on hinge plate (33) circumference, and the threaded hole is connected using lifting bolt (34) It is connected together.