阅读说明：本技术 工件淬火后pag淬火剂回收装置 (PAG quenching agent recovery device after workpiece quenching ) 是由 王军 于 2020-11-26 设计创作，主要内容包括：本发明提供一种工件淬火后PAG淬火剂回收装置,通过从顶罩左侧开口处进淬火后的工件,淬火后的工件进入到网带输送机上左部,处于液面以下,通过网带输送机进行从左往右输送,在网带输送机上通过两个液面下喷射系统进行喷射清洗,回收PAG淬火剂,之后运输到网带输送机右部,通过下液面上喷射系统和上液面上喷射系统在液面以上对工件进行喷射清洗,回收PAG淬火剂,紧跟着通过下风刀和上风刀对工件进行风干,最后通过顶罩右侧开口出料,可以对工件淬火后PAG的回收再利用,降低了日常使用中PAG的损失率,节约了成本。(The invention provides a PAG quenching agent recovery device after workpiece quenching, which is characterized in that a quenched workpiece enters from an opening on the left side of a top cover, enters the upper left part of a mesh belt conveyor and is positioned below the liquid level, the quenched workpiece is conveyed from left to right through the mesh belt conveyor, the mesh belt conveyor is sprayed and cleaned through two liquid level lower spraying systems to recover the PAG quenching agent, then the PAG quenching agent is conveyed to the right part of the mesh belt conveyor, the workpiece is sprayed and cleaned above the liquid level through a lower liquid level upper spraying system and an upper liquid level upper spraying system to recover the PAG quenching agent, the workpiece is air-dried through a lower air knife and an upper air knife, and finally the material is discharged through an opening on the right side of the top cover, so that the work piece can be recycled after quenching, the loss rate of PAG in daily use is reduced, and the cost is saved.)

1. The utility model provides a work piece quenching back PAG quenchant recovery unit, is including open-topped main tank body (1), its characterized in that: a top cover (2) with openings at the left side and the right side is arranged above the main box body (1), a mesh belt conveyor (3) which is inclined towards the upper right and is transported from left to right is arranged at the upper part in the main box body (1), so that the left side of the mesh belt conveyor (3) is low and the right side of the mesh belt conveyor (3) is high, the right end of the mesh belt conveyor (3) faces to the right side opening of the top cover (2), and the left end of the mesh belt conveyor (3) is positioned below the left side opening of the top cover (; the left part of the mesh belt conveyor (3) is provided with two liquid level subsurface injection systems (4) which are arranged on the left and right and are always opened, and the liquid level subsurface injection systems (4) are positioned below the liquid level in the main box body (1); a lower liquid surface upper injection system (5) is arranged at the right part of the mesh belt conveyor (3), the lower liquid surface upper injection system (5) is positioned above the liquid level in the main box body (1), an upper liquid surface upper injection system (6) which is vertically corresponding to the lower liquid surface upper injection system (5) is arranged in the top cover (2) close to the opening at the right side, and the upper liquid surface upper injection system (6) is positioned above the right part of the mesh belt conveyor (3); the right end of the mesh belt conveyor (3) is positioned on the right side of the lower liquid level upper injection system (5) and is provided with a lower air knife (7), an upper air knife (8) which vertically corresponds to the lower air knife (7) is arranged in the top cover (2) close to the opening on the right side, and the upper air knife (8) is positioned above the right end of the mesh belt conveyor (3).

2. The post-quench PAG quenchant recovery apparatus of claim 1, wherein: duckbill nozzles (9) are distributed on the liquid surface lower injection system (4), and fan-shaped nozzles (10) are uniformly distributed at the top of the lower liquid surface upper injection system (5) and the bottom of the upper liquid surface upper injection system (6).

3. The PAG quenchant recovery apparatus after workpiece quenching according to claim 1 or 2, wherein: the water inlets of the two liquid surface lower spraying systems (4) are connected with first pipelines (11), the water inlets of the lower liquid surface upper spraying system (5) and the upper liquid surface upper spraying system (6) are connected with second pipelines (12), all the first pipelines (11) and the second pipelines (12) are connected with spraying water inlets (13) together, and the spraying water inlets (13) are positioned on the front side wall of the main box body (1); a first water outlet (14) is formed in the bottom of the front side of the main box body (1) and is used for being connected with a first pipeline pump to pump water; the injection water inlet (13) is connected with the first pipeline pump for water inlet; and a second water outlet (15) is formed in the bottom of the rear side of the main box body (1) and is used for connecting a second pipeline pump to pump water.

4. The post-quench PAG quenchant recovery apparatus of claim 1, wherein: an overflow box (16) is arranged on the rear side wall of the main box body (1), and the contact part of the main box body (1) and the top of the overflow box (16) is communicated; a return pipe (17) is arranged at the bottom of the overflow tank (16), the return pipe (17) is connected to the main tank body (1), and a recovery valve (18) is arranged on the return pipe (17).

5. The post-quench PAG quenchant recovery apparatus of claim 1, wherein: a water filling port (19) is arranged at the rear corner of the top of the left side of the main box body (1); a spare cooling system water outlet (20) is arranged at the rear corner of the bottom of the left side of the main box body (1); the front angle of the left side of the top of the main box body (1) is provided with a concentration observation port (21).

Technical Field

The invention relates to the field of workpiece quenching, in particular to a PAG quenching agent recovery device after workpiece quenching.

Background

The PAG quenching agent is the most common aqueous quenching medium used at home and abroad at present and has the best use effect. In order to slow down the PAG concentration reduction and waste, the soaking time of the workpiece in the quenching tank is mainly prolonged, the quenching liquid carried out from the workpiece is manually cleaned in time, and then the water for cleaning is supplemented into the quenching tank. There is no specific PAG recovery device. It is therefore important to solve the above problems.

Disclosure of Invention

In order to solve the problems, the invention provides a PAG quenching agent recovery device after quenching of a workpiece, the quenched workpiece enters the left part of a mesh belt conveyor from an opening at the left side of a top cover, is positioned below the liquid level, is conveyed from left to right through the mesh belt conveyor, is sprayed and cleaned on the mesh belt conveyor through two subsurface spraying systems, the subsurface spraying systems are always in an operating state when the equipment is started, on one hand, the liquid in a box body can keep flowing, so that the PAG can be uniformly mixed, the poor PAG recovery effect caused by overhigh concentration is avoided, on the other hand, when the workpiece passes through the spraying area, the high-speed flowing water flow can rapidly flow around the part, the cooling effect and the PAG dissolving speed are increased, then the workpiece is conveyed to the right part of the mesh belt conveyor, and is sprayed and cleaned above the liquid level through the subsurface spraying system and the upper liquid level spraying system, following closely and air-drying the work piece through air knife and last air knife down, can on the one hand weather the water stain, avoid the discharge gate environment relatively poor, can clear up the remaining PAG on workpiece surface through high-pressure gas on the other hand, through the ejection of compact of hood right side opening at last, the PAG to workpiece surface after quenching that like this can be fine washs the recovery, and is effectual, has solved the problem that appears in the background art.

The invention aims to provide a PAG quenching agent recovery device after workpiece quenching, which comprises a main box body with an opening at the top, wherein a top cover with openings at the left and right sides is arranged above the main box body; the left part of the mesh belt conveyor is provided with two liquid level subsurface injection systems which are arranged on the left and right and are always opened, and the liquid level subsurface injection systems are positioned below the liquid level in the main box body; a lower liquid level upper injection system is arranged at the right part of the mesh belt conveyor and is positioned above the liquid level in the main box body, an upper liquid level upper injection system which corresponds to the lower liquid level upper injection system up and down is arranged in the top cover close to the opening at the right side, and the upper liquid level upper injection system is positioned above the right part of the mesh belt conveyor; the right end of the mesh belt conveyor is positioned on the right side of the lower liquid level upper injection system and is provided with a lower air knife, an upper air knife which corresponds to the lower air knife up and down is arranged in the top cover and is close to the opening on the right side, and the upper air knife is positioned above the right end of the mesh belt conveyor.

The further improvement lies in that: duckbill nozzles are distributed on the liquid surface lower spraying system, and fan-shaped nozzles are uniformly distributed at the top of the lower liquid surface upper spraying system and the bottom of the upper liquid surface upper spraying system.

The further improvement lies in that: the water inlets of the two liquid surface lower injection systems are connected with first pipelines, the water inlets of the lower liquid surface upper injection system and the upper liquid surface upper injection system are connected with second pipelines, all the first pipelines and the second pipelines are connected with injection water inlets together, and the injection water inlets are positioned on the front side wall of the main box body; the bottom of the front side of the main box body is provided with a first water outlet which is used for connecting a first pipeline pump to pump water; the injection water inlet is connected with the first pipeline pump for water inlet; and a second water outlet is formed in the bottom of the rear side of the main box body and used for being connected with a second pipeline pump to pump water.

The further improvement lies in that: the rear side wall of the main box body is provided with an overflow box, and the contact part of the main box body and the top of the overflow box is communicated; the bottom of the overflow tank is provided with a return pipe which is connected to the main tank body and provided with a recovery valve.

The further improvement lies in that: a water filling port is arranged at the rear angle of the top of the left side of the main box body; a spare cooling system water outlet is formed in the rear corner of the bottom of the left side of the main box body; the front angle of the left side of the top of the main box body is provided with a concentration observation port.

The invention has the beneficial effects that: the invention carries out spray cleaning on the work piece after quenching from the opening at the left side of the top cover, the work piece after quenching enters the left part of the mesh belt conveyor and is positioned below the liquid level, the work piece is conveyed from left to right through the mesh belt conveyor, the mesh belt conveyor is used for carrying out spray cleaning through two liquid level lower spray systems, the liquid level lower spray systems are always in a running state when the equipment is opened, on one hand, the liquid in the box body can keep flowing, so that PAG can be uniformly mixed, the poor PAG recovery effect caused by overhigh concentration is avoided, on the other hand, when the work piece passes through the spray area, the water flow flowing at high speed can rapidly flow through the periphery of the part, the cooling effect and the dissolution speed of the PAG are increased, then the work piece is conveyed to the right part of the mesh belt conveyor, the work piece is spray cleaned above the liquid level through the lower liquid level upper spray system and the upper liquid level upper spray system, the work, on one hand, water stain can be dried to avoid poor environment of the discharge port, on the other hand, PAG remained on the surface of the workpiece can be cleaned through high-pressure gas, and finally, the material is discharged through the opening at the right side of the top cover,

part after the quenching can be with partial water with PAG bring recovery unit in, cause the water level too high to spill over the main tank body, consequently, the main tank body rear side has added the overflow case, after the water level reached the take the altitude, the liquid of excessive play can flow in the overflow case, the overflow case is controlled through the recovery valve with the main tank body, main tank body PAG concentration reaches 10% back (inspector regularly detects inside concentration), open the second tubing pump, take out the inside liquid of main tank body and preserve in leaving the holding vessel, four injection system are supplied with simultaneously to first tubing pump.

The invention can recycle the PAG after quenching the workpiece, reduces the loss rate of the PAG in daily use and saves the cost. And meanwhile, PAG is adhered to the surface of a workpiece and presents a sticky paste shape, so that a material frame is difficult to clean, the surrounding working environment is poor, and the like.

Drawings

Fig. 1 is an overall schematic view of the present invention.

Fig. 2 is a rear schematic view of the present invention.

FIG. 3 is a schematic view of the top of the canopy and the top of the front side of the main housing of the present invention shown hidden.

Fig. 4 is a schematic view of the mesh belt conveyor of the present invention (with the mesh belt hidden).

Wherein: 1-main box body, 2-top cover, 3-mesh belt conveyor, 4-liquid level lower injection system, 5-lower liquid level upper injection system, 6-upper liquid level upper injection system, 7-lower air knife, 8-upper air knife, 9-duckbill nozzle, 10-fan nozzle, 11-first pipeline, 12-second pipeline, 13-injection water inlet, 14-first water outlet, 15-second water outlet, 16-overflow box, 17-return pipe, 18-recovery valve, 19-water inlet, 20-standby cooling system water outlet and 21-concentration observation port.

Detailed Description

For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1-4, the embodiment provides a PAG quenchant recovery device after workpiece quenching, which comprises a main box body 1 with an open top, wherein a top cover 2 with openings at the left and right sides is arranged above the main box body 1, a mesh belt conveyor 3 which is inclined towards the upper right and is transported from left to right is arranged at the upper part in the main box body 1, so that the mesh belt conveyor 3 is low at the left and high at the right, the right end of the mesh belt conveyor 3 faces to the opening at the right side of the top cover 2, and the left end of the mesh belt conveyor 3 is positioned below the opening at the left side of the top cover; the left part of the mesh belt conveyor 3 is provided with two liquid level subsurface injection systems 4 which are arranged on the left and right and are always opened, and the liquid level subsurface injection systems 4 are positioned below the liquid level in the main box body 1; a lower liquid level upper injection system 5 is arranged at the right part of the mesh belt conveyor 3, the lower liquid level upper injection system 5 is positioned above the liquid level in the main box body 1, an upper liquid level upper injection system 6 which is vertically corresponding to the lower liquid level upper injection system 5 is arranged in the top cover 2 close to the opening at the right side, and the upper liquid level upper injection system 6 is positioned above the right part of the mesh belt conveyor 3; the right end of the mesh belt conveyor 3 is positioned on the right side of the lower liquid level upper injection system 5 and is provided with a lower air knife 7, an upper air knife 8 which vertically corresponds to the lower air knife 7 is arranged in the top cover 2 and is close to the opening on the right side, and the upper air knife 8 is positioned above the right end of the mesh belt conveyor 3.

Duckbill nozzles 9 are distributed on the liquid surface lower spraying system 4, and fan-shaped nozzles 10 are uniformly distributed at the top of the lower liquid surface upper spraying system 5 and the bottom of the upper liquid surface upper spraying system 6.

The water inlets of the two liquid surface lower injection systems 4 are connected with a first pipeline 11, the water inlets of the lower liquid surface upper injection system 5 and the upper liquid surface upper injection system 6 are connected with a second pipeline 12, all the first pipelines 11 and the second pipelines 12 are connected with an injection water inlet 13 together, and the injection water inlet 13 is positioned on the front side wall of the main box body 1; a first water outlet 14 is arranged at the bottom of the front side of the main box body 1 and is used for connecting a first pipeline pump to pump water; the injection water inlet 13 is connected with the first pipeline pump inlet water; and a second water outlet 15 is arranged at the bottom of the rear side of the main box body 1 and is used for connecting a second pipeline pump to pump water.

An overflow box 16 is arranged on the rear side wall of the main box body 1, and the contact part of the main box body 1 and the top of the overflow box 16 is communicated; the bottom of the overflow tank 16 is provided with a return pipe 17, the return pipe 17 is connected to the main tank 1, and the return pipe 17 is provided with a recovery valve 18.

A water filling port 19 is arranged at the rear angle of the top of the left side of the main box body 1; a spare cooling system water outlet 20 is arranged at the rear corner of the bottom of the left side of the main box body 1; the front corner of the left side of the top of the main box body 1 is provided with a concentration observation port 21.

The quenched workpiece enters from the opening on the left side of the top cover, enters the upper left part of a mesh belt conveyor and is positioned below the liquid level, the quenched workpiece is conveyed from left to right through the mesh belt conveyor, the mesh belt conveyor is sprayed and cleaned through two under-liquid-level spraying systems 4, the under-liquid-level spraying systems are always in a running state during the opening of the equipment, on one hand, liquid in the box body can keep flowing, PAG can be uniformly mixed, poor PAG recovery effect caused by overhigh concentration is avoided, on the other hand, when the workpiece passes through the spraying area, high-speed flowing water flows through the periphery of the part rapidly, the cooling effect and the PAG dissolving speed are increased, then the workpiece is conveyed to the right part of the mesh belt conveyor, the workpiece is sprayed and cleaned above the liquid level through the under-liquid-level spraying system 5 and the upper-liquid-level spraying system 6, and then the workpiece is air-dried through a lower air knife 7 and an upper air knife 8, on one hand, water stain can be dried to avoid poor environment of the discharge port, on the other hand, PAG remained on the surface of the workpiece can be cleaned through high-pressure gas, and finally, the material is discharged through the opening at the right side of the top cover,

part after the quenching can be with partial water with PAG bring recovery unit in, cause the water level too high to spill over the main tank body, consequently, the main tank body rear side has added the overflow case, after the water level reached the take the altitude, the liquid of excessive play can flow in the overflow case, the overflow case is controlled through the recovery valve with the main tank body, main tank body PAG concentration reaches 10% back (inspector regularly detects inside concentration), open the second tubing pump, take out the inside liquid of main tank body and preserve in leaving the holding vessel, four injection system are supplied with simultaneously to first tubing pump.

The method can recycle the PAG after quenching the workpiece, reduce the loss rate of the PAG in daily use and save the cost. And meanwhile, PAG is adhered to the surface of a workpiece to present a sticky paste shape, so that a material frame is difficult to clean, the surrounding working environment is poor, and the like.