阅读说明：本技术 一种出土文物的真空浸渍保护系统 (Vacuum impregnation protection system of unearthed cultural relics ) 是由 武仙竹 于 2020-07-01 设计创作，主要内容包括：本发明公开了一种出土文物的真空浸渍保护系统,包括真空浸渍装置和以PDMS/SiO2无机-有机纳米复合材料为浸渍剂材料；所述真空浸渍装置包括安装架；抽气底座,所述抽气底座固定安装于所述安装架内表面的底部,所述抽气底座的底部连通有抽气管,所述抽气管的一端与真空泵连通；该出土文物的真空浸渍保护系统,该真空浸渍装置通过设置抽气底座配合输送组件在对抽真空的同时将浸渍剂加入到第一密封罩内部,且通过设置脱气膜,可以在脱气的同时保证液体不会漏出,将双腔系统改为一个系统,同时通过设置增流组件,当真空浸泡结束后可以增加文物表面的气流,提高固化的速度,提高整个真空浸渍的效率。(The invention discloses a vacuum impregnation protection system for unearthed cultural relics, which comprises a vacuum impregnation device and an impregnant material which is PDMS/SiO2 inorganic-organic nano composite material; the vacuum impregnation device comprises a mounting frame; the air exhaust base is fixedly arranged at the bottom of the inner surface of the mounting frame, the bottom of the air exhaust base is communicated with an air exhaust pipe, and one end of the air exhaust pipe is communicated with a vacuum pump; this vacuum impregnation protection system of unearthed historical relic, this vacuum impregnation device through set up the base cooperation transport assembly of bleeding add the impregnant to first sealed cowling in to the evacuation inside, and through setting up the degasification membrane, can guarantee that liquid can not spill in the degasification, change two-chamber system into a system, through setting up the flow increasing subassembly simultaneously, can increase the air current on historical relic surface after the vacuum soaks, improve the speed of solidification, improve whole vacuum impregnation's efficiency.)

1. A vacuum impregnation protection system for unearthed cultural relics is characterized by comprising a vacuum impregnation device and an impregnant material which is PDMS/SiO2 inorganic-organic nano composite material;

the vacuum impregnation device comprises a mounting frame;

the air exhaust base is fixedly arranged at the bottom of the inner surface of the mounting frame, the bottom of the air exhaust base is communicated with an air exhaust pipe, and one end of the air exhaust pipe is communicated with a vacuum pump;

the hydraulic cylinder is fixedly arranged at the top of the mounting frame, a first sealing cover is fixedly arranged at the bottom end of an output shaft of the hydraulic cylinder, an annular groove is formed in the surface of the first sealing cover, a flow increasing assembly is arranged in the annular groove, and a conveying assembly is arranged on the first sealing cover and below the flow increasing assembly;

the liquid storage tank is fixed on one side of the mounting frame, and the conveying assembly is communicated with the upper side of the liquid storage tank;

the axial flow fan is fixedly installed on the upper side of the back face of the installation frame, a second sealing cover is fixedly installed on one side, located on the axial flow fan, of the inner side of the installation frame, and the flow increasing assembly is communicated with the second sealing cover.

2. The vacuum impregnation protection system for unearthed cultural relics of claim 1, wherein: the air exhaust base comprises a placing seat, a supporting plate is arranged in the middle of the interior of the placing seat, a plurality of through holes are formed in the supporting plate, and a degassing membrane is fixedly connected to the lower side of the supporting plate.

3. The vacuum impregnation protection system for unearthed cultural relics of claim 2, wherein: the surface of the placing seat is fixedly connected with a support ring, the top of the support ring is fixedly connected with a sealing lug, and a sealing rubber sleeve is sleeved on the surface of the sealing lug.

4. The vacuum impregnation protection system for unearthed cultural relics of claim 1, wherein: the flow increasing assembly comprises an annular guide cylinder and an exhaust hole, an air outlet hole is formed in the inner side of the annular guide cylinder, and the air outlet hole and the exhaust hole are arranged in a staggered mode.

5. The vacuum impregnation protection system for unearthed cultural relics of claim 4, wherein: the top of annular draft tube is provided with the internal thread ring, the upside of annular groove internal surface is provided with the internal thread, the internal thread ring through internal thread threaded connection in the surface of annular groove.

6. The vacuum impregnation protection system for unearthed cultural relics of claim 5, wherein: the two sides of the annular guide cylinder are communicated with air guide pipes, one ends of the two air guide pipes are communicated with a first three-way pipe, the bottom end of the first three-way pipe is communicated with a connecting pipe, and one end of the connecting pipe is communicated with one side of the second sealing cover.

7. The vacuum impregnation protection system for unearthed cultural relics of claim 1, wherein: the conveying assembly comprises two liquid inlet grooves and two liquid inlet pipes, the two liquid inlet grooves are formed in the two sides of the inner wall of the first sealing cover respectively and are communicated with one end of each liquid inlet pipe, a buffer piece is arranged inside each liquid inlet groove, and a flow guide hole is formed in each buffer piece.

8. The vacuum impregnation protection system for unearthed cultural relics of claim 7, wherein: one end of each of the two liquid inlet pipes is communicated with a second three-way pipe, the bottom end of each second three-way pipe is communicated with a liquid guide pipe, and one end of each liquid guide pipe is communicated with the upper side of the liquid storage tank.

9. The vacuum impregnation protection system for unearthed cultural relics of claim 1, wherein: one side fixed mounting at first sealed cowling top has the atmospheric pressure detector, the position that one side at first sealed cowling inner wall top corresponds the atmospheric pressure detector is seted up flutedly, annular seal groove has been seted up to the bottom of first sealed cowling.

10. The vacuum impregnation protection system for unearthed cultural relics of claim 1, wherein: the method comprises the following steps:

s1: cleaning soil and the like on the surface and inside the cultural relic, and then binding and reinforcing the cultural relic with lower strength by using gauze;

s2, completely soaking the cleaned and bound cultural relics in a high-concentration acetone solution, and replacing the cultural relics for 1 time every 3 days and 3 times in total;

s3: placing the soaked cultural relics on a supporting plate in a placing seat, starting a hydraulic cylinder, pushing a first sealing cover to cover the placing seat, wherein a sealing lug on the side of the placing seat is correspondingly inserted into an annular sealing groove at the bottom of the first sealing cover for sealing;

s4: starting a vacuum pump, pumping the interior of the first sealing cover into negative pressure through an exhaust pipe by the vacuum pump, so that the impregnant in the liquid storage tank enters the liquid inlet tank through the liquid guide pipe, then gradually slowly enters the interior of the first sealing cover through the flow guide holes on the buffer piece, gradually submerging the cultural relic, enabling the impregnant to be located below the groove, closing a valve on the liquid guide pipe, keeping the air pressure in the first sealing cover at 60-6Pa, and keeping for 1-3 hours;

s5: then controlling the air pressure in the first sealing cover by the vacuum pump again, and keeping the air pressure for 1-2 hours after the air pressure reaches 1-3 atmospheric pressures;

s6: after the flooding is finished, emit the inside impregnant of first sealed cowling, then make first sealed cowling upwards lift up a little through the pneumatic cylinder, then through anticlockwise rotation annular draft tube, annular draft tube moves down, makes venthole and exhaust hole correspond, opens axial fan, produces the air current and increases the air current on historical relic surface for historical relic surface impregnant solidification, and when the impregnant material is the semi-solid state, removes the gauze of wrapping.

Technical Field

The invention particularly relates to a vacuum impregnation protection system for unearthed cultural relics.

Background

The cultural relics refer to specific substance relics and are characterized in that: first, must be created by a human or related to human activity; second, it must be a history that has been made and cannot be recreated. At present, the names of the cultural relics in various countries are not consistent, and the meanings and the ranges of the cultural relics are not the same, so that a unified definition of the common confirmation of the cultural relics is not formed so far.

The existing double-cavity vacuum system is usually arranged in the vacuum and medicament dipping treatment process of cultural relics, the cultural relics are required to be respectively vacuumized when in use, the operation is complex, the cultural relics are usually naturally air-dried after being dipped, the treatment rate of the whole cultural relics is slow, and the efficiency is low.

Disclosure of Invention

The invention aims to provide a vacuum impregnation protection system for unearthed cultural relics aiming at the defects of the prior art and aims to improve the treatment efficiency of the cultural relics through vacuum impregnation.

In order to solve the technical problem, the vacuum impregnation protection system for the unearthed cultural relics comprises a vacuum impregnation device and an impregnant material which is PDMS/SiO2 inorganic-organic nano composite material;

the vacuum impregnation device comprises a mounting frame;

the air exhaust base is fixedly arranged at the bottom of the inner surface of the mounting frame, the bottom of the air exhaust base is communicated with an air exhaust pipe, and one end of the air exhaust pipe is communicated with a vacuum pump;

the hydraulic cylinder is fixedly arranged at the top of the mounting frame, a first sealing cover is fixedly arranged at the bottom end of an output shaft of the hydraulic cylinder, an annular groove is formed in the surface of the first sealing cover, a flow increasing assembly is arranged in the annular groove, and a conveying assembly is arranged on the first sealing cover and below the flow increasing assembly;

the liquid storage tank is fixed on one side of the mounting frame, and the conveying assembly is communicated with the upper side of the liquid storage tank;

the axial flow fan is fixedly installed on the upper side of the back face of the installation frame, a second sealing cover is fixedly installed on one side, located on the axial flow fan, of the inner side of the installation frame, and the flow increasing assembly is communicated with the second sealing cover.

Preferably, the air exhaust base comprises a placing seat, a supporting plate is arranged in the middle of the interior of the placing seat, a plurality of through holes are formed in the supporting plate, and a degassing membrane is fixedly connected to the lower side of the supporting plate.

The gas can be discharged while the liquid is prevented from being discharged by providing a degassing membrane through which the gas on the support plate can pass and then be discharged through the degassing membrane.

Preferably, the surface of the placing seat is fixedly connected with a supporting ring, the top of the supporting ring is fixedly connected with a sealing lug, and a sealing rubber sleeve is sleeved on the surface of the sealing lug.

Through setting up sealed lug, the annular seal groove of cooperation first sealed cowling bottom makes first sealed cowling combine closely with placing the seat.

Preferably, the flow increasing assembly comprises an annular guide cylinder and an exhaust hole, an air outlet is formed in the inner side of the annular guide cylinder, and the air outlet and the exhaust hole are arranged in a staggered mode.

Through setting up the venthole and the exhaust hole staggeredly, can be when not needing to increase a class subassembly, can keep the inside sealed of first sealed cowling.

Preferably, the top of the annular guide shell is provided with an internal thread ring, the upper side of the inner surface of the annular groove is provided with internal threads, and the internal thread ring is connected to the surface of the annular groove through the internal threads in a threaded manner.

The annular guide cylinder is in threaded connection with the inner surface of the annular groove through the internal thread ring, and the position of the annular guide cylinder can be adjusted, so that the air outlet and the exhaust hole correspondingly form a passage.

Preferably, the two sides of the annular guide cylinder are communicated with air guide tubes, one ends of the two air guide tubes are communicated with a first three-way pipe, the bottom end of the first three-way pipe is communicated with a connecting pipe, and one end of the connecting pipe is communicated with one side of the second sealing cover.

Preferably, the conveying assembly comprises two liquid inlet grooves and two liquid inlet pipes, wherein the two liquid inlet grooves are formed in the two sides of the inner wall of the first sealing cover respectively and are communicated with one end of each liquid inlet pipe, a buffer piece is arranged inside each liquid inlet groove, and a flow guide hole is formed in the buffer piece.

When can preventing that liquid from getting into through setting up the bolster, the rivers impact force is big, reduces the dynamics of rivers, makes it slowly enter into inside first sealed cowling through the water conservancy diversion hole.

Preferably, one end of each of the two liquid inlet pipes is communicated with a second three-way pipe, the bottom end of each second three-way pipe is communicated with a liquid guide pipe, and one end of each liquid guide pipe is communicated with the upper side of the liquid storage tank.

Preferably, an air pressure detector is fixedly mounted on one side of the top of the first sealing cover, a groove is formed in the position, corresponding to the air pressure detector, on one side of the top of the inner wall of the first sealing cover, and an annular sealing groove is formed in the bottom of the first sealing cover.

The air pressure detector is used for detecting air pressure inside the first sealing cover.

Preferably, the method comprises the following steps:

s1: cleaning soil and the like on the surface and inside the cultural relic, and then binding and reinforcing the cultural relic with lower strength by using gauze;

s2, completely soaking the cleaned and bound cultural relics in a high-concentration acetone solution, and replacing the cultural relics for 1 time every 3 days and 3 times in total;

s3: placing the soaked cultural relics on a supporting plate in a placing seat, starting a hydraulic cylinder, pushing a first sealing cover to cover the placing seat, wherein a sealing lug on the side of the placing seat is correspondingly inserted into an annular sealing groove at the bottom of the first sealing cover for sealing;

s4: starting a vacuum pump, pumping the interior of the first sealing cover into negative pressure through an exhaust pipe by the vacuum pump, so that the impregnant in the liquid storage tank enters the liquid inlet tank through the liquid guide pipe, then gradually slowly enters the interior of the first sealing cover through the flow guide holes on the buffer piece, gradually submerging the cultural relic, enabling the impregnant to be located below the groove, closing a valve on the liquid guide pipe, keeping the air pressure in the first sealing cover at 60-6Pa, and keeping for 1-3 hours;

s5: then controlling the air pressure in the first sealing cover by the vacuum pump again, and keeping the air pressure for 1-2 hours after the air pressure reaches 1-3 atmospheric pressures;

s6: after the flooding is finished, emit the inside impregnant of first sealed cowling, then make first sealed cowling upwards lift up a little through the pneumatic cylinder, then through anticlockwise rotation annular draft tube, annular draft tube moves down, makes venthole and exhaust hole correspond, opens axial fan, produces the air current and increases the air current on historical relic surface for historical relic surface impregnant solidification, and when the impregnant material is the semi-solid state, removes the gauze of wrapping.

Compared with the related art, the vacuum impregnation protection system for unearthed cultural relics provided by the invention has the following beneficial effects:

the invention provides a vacuum impregnation protection system for unearthed cultural relics, which is characterized in that an air exhaust base is arranged in a vacuum impregnation device, an impregnant is added into a first sealing cover while vacuumizing is performed by matching with a conveying assembly, a degassing film is arranged, liquid can be prevented from leaking while degassing is performed, a double-cavity system is changed into a system, and meanwhile, by arranging a flow increasing assembly, airflow on the surface of the cultural relics can be increased after vacuum impregnation is finished, the solidification speed is improved, and the whole vacuum impregnation efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of a vacuum dipping protection system for unearthed cultural relics according to a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of the entirety shown in FIG. 1;

FIG. 3 is a side view of the ensemble shown in FIG. 1;

FIG. 4 is a cross-sectional view of the first seal boot shown in FIG. 2;

FIG. 5 is a cross-sectional view of the pumping base shown in FIG. 2;

FIG. 6 is a rear view of the first seal cap shown in FIG. 1;

fig. 7 is a partial cross-sectional view of the mounting bracket shown in fig. 1.

Reference numbers in the figures: 1. mounting bracket, 2, air extraction base, 21, placing seat, 22, support plate, 23, through hole, 24, degassing membrane, 25, support ring, 26, sealing lug, 3, hydraulic cylinder, 4, first sealing cover, 5, annular groove, 6, flow increasing assembly, 61, annular guide cylinder, 62, air outlet hole, 63, exhaust hole, 64, air duct, 65, sealing gasket, 66, connecting pipe, 67, internal thread ring, 68, first three-way pipe, 7, conveying assembly, 71, liquid inlet groove, 72, buffer piece, 73, liquid inlet pipe, 74, second three-way pipe, 75, liquid guide pipe, 8, liquid storage box, 9, air pressure detector, 10, air extraction pipe, 11, groove, 12, annular sealing groove, 13, axial fan, 14, second sealing cover, 15 and dustproof net.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, wherein fig. 1 is a schematic structural view of a vacuum impregnation protection system for unearthed cultural relics according to a preferred embodiment of the present invention; FIG. 2 is a cross-sectional view of the entirety shown in FIG. 1; FIG. 3 is a side view of the ensemble shown in FIG. 1; FIG. 4 is a cross-sectional view of the first seal boot shown in FIG. 1; FIG. 5 is a cross-sectional view of the pumping base shown in FIG. 1; FIG. 6 is a rear view of the first seal cap shown in FIG. 1; fig. 7 is a partial cross-sectional view of the mounting bracket shown in fig. 1. The vacuum impregnation protection system for the unearthed cultural relics comprises a vacuum impregnation device and an impregnant material which is PDMS/SiO2 inorganic-organic nano composite material;

the vacuum impregnation device comprises a mounting frame 1;

the air exhaust base 2 is fixedly arranged at the bottom of the inner surface of the mounting frame 1, the bottom of the air exhaust base 2 is communicated with an air exhaust pipe 10, and one end of the air exhaust pipe 10 is communicated with a vacuum pump;

the hydraulic cylinder 3 is fixedly mounted at the top of the mounting frame 1, a first sealing cover 4 is fixedly mounted at the bottom end of an output shaft of the hydraulic cylinder 3, an annular groove 5 is formed in the surface of the first sealing cover 4, a flow increasing assembly 6 is arranged in the annular groove 5, and a conveying assembly 7 is arranged on the first sealing cover 4 and below the flow increasing assembly 6;

the liquid storage tank 8 is fixed on one side of the mounting frame 1, and the conveying assembly 7 is communicated with the upper side of the liquid storage tank 8;

the axial flow fan 13 is fixedly installed on the upper side of the back face of the installation frame 1, a second sealing cover 14 is fixedly installed on one side, located on the axial flow fan 13, of the inner side of the installation frame 1, and the flow increasing assembly 6 is communicated with the second sealing cover 10.

The air exhaust base 2 comprises a placing seat 21, a supporting plate 22 is arranged in the middle of the inside of the placing seat 21, a plurality of through holes 23 are formed in the supporting plate 22, and a degassing membrane 24 is fixedly connected to the lower side of the supporting plate 22.

The bottom of the air exhaust base 2 is a detachable plate and is fixed through screws.

The surface of the placing seat 21 is fixedly connected with a supporting ring 25, the top of the supporting ring 25 is fixedly connected with a sealing lug 26, and the surface of the sealing lug 26 is sleeved with a sealing rubber sleeve.

The sealing lug 26 is annular, and the top of the support ring 25 is bonded with a sealing ring.

The flow increasing assembly 6 comprises an annular guide cylinder 61 and an exhaust hole 63, an air outlet 62 is formed in the inner side of the annular guide cylinder 61, and the air outlet 62 and the exhaust hole 63 are arranged in a staggered mode.

The air outlet holes 62 and the air outlet holes 63 are all provided with a plurality of air outlet holes, when the annular guide cylinder 61 rotates downwards to a position where the annular guide cylinder cannot rotate, the air outlet holes 62 correspond to the air outlet holes 63 at the moment and are all arranged obliquely downwards, and therefore downward air flow guiding of air flow is facilitated.

The top of annular draft tube 61 is provided with internal thread ring 67, the upside of annular recess 5 internal surface is provided with the internal thread, internal thread ring 67 through internal thread threaded connection in the surface of annular recess 5.

The two sides of the annular guide cylinder 61 are both communicated with gas guide pipes 64, one ends of the two gas guide pipes 64 are communicated with a first three-way pipe 68, the bottom end of the first three-way pipe 68 is communicated with a connecting pipe 66, and one end of the connecting pipe 66 is communicated with one side of the second sealing cover 14.

The connecting pipe 66 is a hose and has a length enough to satisfy the telescopic distance of the hydraulic cylinder 3, and the inner side of the second sealing cover 14 is provided with a dust screen 15 corresponding to the connecting pipe 66.

Conveying assembly 7 includes two feed liquor grooves 71 and two feed liquor pipes 73, two feed liquor grooves 71 set up respectively in the both sides of 4 inner walls of first sealed cowling, two the one end of feed liquor pipe 73 with feed liquor groove 71 intercommunication, the inside in feed liquor groove 71 is provided with bolster 72, the water conservancy diversion hole has been seted up on the bolster 72.

The water conservancy diversion hole is provided with a plurality of.

One end of each of the two liquid inlet pipes 73 is communicated with a second three-way pipe 74, the bottom end of the second three-way pipe 74 is communicated with a liquid guide pipe 75, and one end of the liquid guide pipe 75 is communicated with the upper side of the liquid storage tank 8.

The liquid guide pipe 75 is a hose and has a length enough for the hydraulic cylinder 3 to extend and retract, and a valve is arranged on the liquid guide pipe 75.

An air pressure detector 9 is fixedly mounted on one side of the top of the first sealing cover 4, a groove 11 is formed in the position, corresponding to the air pressure detector 9, on one side of the top of the inner wall of the first sealing cover 4, and an annular sealing groove 11 is formed in the bottom of the first sealing cover 4.

The method comprises the following steps:

s1: cleaning soil and the like on the surface and inside the cultural relic, and then binding and reinforcing the cultural relic with lower strength by using gauze;

s2, completely soaking the cleaned and bound cultural relics in a high-concentration acetone solution, and replacing the cultural relics for 1 time every 3 days and 3 times in total;

s3: placing the soaked cultural relics in a supporting plate 22 in a placing seat 21, starting a hydraulic cylinder 3, pushing a first sealing cover 4 to cover the placing seat 21, wherein a sealing convex block 26 at the side of the placing seat 21 is correspondingly inserted into an annular sealing groove 12 at the bottom of the first sealing cover 4 for sealing;

s4: starting a vacuum pump, wherein the vacuum pump pumps the interior of the first sealing cover 4 into negative pressure through the exhaust pipe 10, so that the impregnant in the liquid storage tank 8 enters the liquid inlet tank 71 through the liquid guide pipe 75, a valve is arranged on the liquid guide pipe 75, the valve is opened before use, then the impregnant gradually and slowly enters the interior of the first sealing cover through the flow guide hole on the buffer 72, the buffer 72 can prevent too large impact force of water flow when liquid enters, buffer the water flow, slowly enter the water flow through the flow guide hole, gradually immerse the cultural relic, enable the impregnant to be positioned below the groove 11, enable the detection end of the air pressure detector 9 to be positioned in the groove, detect the air pressure in the first sealing cover 4, close the valve on the liquid guide pipe 75, enable the air pressure in the first sealing cover 4 to be 60-6Pa, and keep the air pressure for 1;

s5: then the air pressure in the first sealing cover 4 is controlled by the vacuum pump again, and the air pressure is kept for 1-2 hours after reaching 1-3 atmospheric pressures;

s6: after the impregnation is finished, the impregnant in the first sealing cover 4 is discharged, then the first sealing cover 4 is slightly lifted upwards through the hydraulic cylinder 3, a gap exists between the first sealing cover 4 and the placing seat 21, then the annular guide cylinder 61 is rotated anticlockwise, the annular guide cylinder 61 moves downwards, the air outlet hole 62 corresponds to the exhaust hole 63, the axial fan 13 is started, the air flow enters the air guide pipe 64 through the second sealing cover and then enters the annular guide cylinder 61, then the air outlet hole 62 and the exhaust hole 63 are exhausted, the air flow is generated to increase the air flow on the surface of the cultural relic, the solidification of the impregnant on the surface of the cultural relic is accelerated, and when the impregnant material is in a semi-solidified state, bound gauze is removed.

The working principle of the vacuum impregnation protection system for unearthed cultural relics provided by the invention is as follows:

cleaning soil and the like on the surface and inside the cultural relic, and then binding and reinforcing the cultural relic with lower strength by using gauze;

completely soaking the cleaned and bound cultural relics in a high-concentration acetone solution, and replacing for 3 times every 3 days for 1 time;

placing the soaked cultural relics in a supporting plate 22 in a placing seat 21, starting a hydraulic cylinder 3, pushing a first sealing cover 4 to cover the placing seat 21, wherein a sealing convex block 26 at the side of the placing seat 21 is correspondingly inserted into an annular sealing groove 12 at the bottom of the first sealing cover 4 for sealing;

starting a vacuum pump, wherein the vacuum pump pumps the interior of the first sealing cover 4 into negative pressure through the exhaust pipe 10, so that the impregnant positioned in the liquid storage tank 8 enters the liquid inlet tank 71 through the liquid guide pipe 75, then gradually and slowly enters the interior of the first sealing cover through the flow guide hole on the buffer piece 72, the cultural relic is gradually immersed, the impregnant is positioned below the groove 11, the valve on the liquid guide pipe 75 is closed, the air pressure in the first sealing cover 4 is kept at 60-6Pa, and the air pressure is kept for 1-3 hours;

then controlling the air pressure in the first sealing cover by the vacuum pump again, and keeping the air pressure for 1-2 hours after the air pressure reaches 1-3 atmospheric pressures;

after the impregnation is finished, the impregnant in the first sealing cover 4 is discharged, then the first sealing cover 4 is slightly lifted upwards through the hydraulic cylinder 3, then the annular guide cylinder 61 rotates anticlockwise, the annular guide cylinder 61 moves downwards, the air outlet 62 corresponds to the exhaust hole 63, the axial fan 13 is started, the airflow is generated to increase the airflow on the surface of the cultural relic, the solidification of the impregnant on the surface of the cultural relic is accelerated, and when the impregnant material is in a semi-solidified state, the bound gauze is removed.

Compared with the related art, the vacuum impregnation protection system for unearthed cultural relics provided by the invention has the following beneficial effects:

this vacuum impregnation device is through setting up 2 cooperation transport assembly 7 of bleeding the base and adding the impregnant into first sealed cowling 4 inside to the evacuation, and through setting up the degasification membrane, can guarantee in degasification that liquid can not spill, change the two-chamber system into a system, through setting up flow increasing assembly 65 simultaneously, can increase the air current on historical relic surface after the vacuum soaks the end, improve the speed of solidification, improve whole vacuum impregnation's efficiency.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.