Adhesive discharging system applied to vacuum equipment

Abstract

The utility model belongs to the technical field of vacuum furnace equipment, and particularly relates to a glue discharging system applied to vacuum equipment. Comprising a water-cooling horizontal pipe, a pneumatic ball valve, a rubber discharging pipeline, a tee joint, a filtering device and a vacuum pump, the water-cooling horizontal pipe is fixed on a rubber discharging connecting pipe of a vacuum furnace body, one end of the rubber discharging pipeline is connected with the water-cooling horizontal pipe through the pneumatic ball valve, the other end of the rubber discharging pipeline is connected with the filtering device through the tee joint, and the filtering device is connected with the vacuum pump. The glue discharging device is simple in structure, convenient to operate and low in production cost, the glue discharging effect of materials is improved, and then the qualification rate of the materials is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum furnace equipment, in particular to a binder removal system applied to vacuum equipment. Background Art

[0002] The debinding system plays a vital role in vacuum equipment, which can directly affect the qualified rate of materials burned in vacuum equipment and the service life of heavy insulation materials of vacuum equipment. The factors that affect the normal operation of the debinding system mainly include debinding speed, water cooling effect, sealing effect, cleaning frequency, etc.

[0003] During the high-temperature sintering process of the raw materials fired by the vacuum equipment, the glue substances contained in the raw materials will be gasified to form glue vapor. The glue vapor is discharged to the outside through this debinding system, which requires that the exhaust volume of the debinding system must be greater than the sum of the amount of glue vapor generated in the furnace and the amount of protective gas filled into the furnace, otherwise a positive pressure state will be formed in the vacuum furnace, affecting the normal operation of the vacuum furnace.

[0004] The existing industrial debinding system is only suitable for use in low-temperature vacuum furnaces, and there will be more or less problems such as insufficient debinding, poor cooling effect, and poor sealing, which will affect the success rate of raw material sintering. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to provide a debinding system for vacuum equipment to solve the problem that the existing industrial debinding system is only suitable for use in low-temperature vacuum furnaces, and more or less has the problems of insufficient debinding, poor cooling effect and poor sealing.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a glue removal system applied to vacuum equipment, comprising a water-cooling cross pipe, a pneumatic ball valve, a glue removal pipeline, a tee, a filtering device and a vacuum pump, wherein the water-cooling cross pipe is fixed on the glue removal pipe of a vacuum furnace body, one end of the glue removal pipeline is connected to the water-cooling cross pipe through the pneumatic ball valve, the other end of the glue removal pipeline is connected to the filtering device through the tee, and the filtering device is connected to the vacuum pump.

[0008] The tee includes a tee cavity and an air inlet flange, a side flange and a dredging flange arranged on the tee cavity, wherein the air inlet flange is connected to the other end of the rubber discharge pipeline, and the side flange is connected to the air inlet end of the filter device; a dredging blind plate is installed on the outer side of the dredging flange to ensure sealing during operation.

[0009] A connecting pipe is arranged inside the three-way cavity, one end of the connecting pipe is connected to the air outlet end of the filtering device, and the other end of the connecting pipe passes through the three-way cavity and is connected to the vacuum pump.

[0010] The connecting pipe includes a connector, a bent pipe and a straight pipe connected in sequence, wherein the end of the connector is connected to the air inlet end of the filtering device, the end of the straight pipe passes through the three-way cavity and is connected to the vacuum pump, and the three-way cavity and the straight pipe are sealed by a sealing ring.

[0011] The filtering device includes a filter element pipe, a filter element and a filter element blind plate, wherein the two ends of the filter element pipe are respectively provided with a connecting flange and a blind plate flange, the connecting flange is connected to the side flange of the three-way cavity, the filter element is accommodated in the filter element pipe, and the inner end of the filter element is connected to the blind plate flange through the filter element blind plate, and the other end of the filter element is connected to the connecting pipe.

[0012] The debonding pipeline comprises a transverse pipe, a lower bend pipe, a vertical pipe, a transverse bend pipe and an elbow which are connected end to end in sequence, wherein the transverse pipe is connected to the pneumatic ball valve, and the elbow is connected to the air inlet flange of the three-way cavity.

[0013] A manual ball valve is connected between the transverse pipe and the lower curved pipe.

[0014] The transverse bend pipe and the elbow are softly connected via a bellows.

[0015] The water-cooling transverse pipe includes an inner sleeve and an outer sleeve sleeved on the outside of the inner sleeve. The two ends of the outer sleeve are sealed by retaining rings. A water cooling cavity is formed between the outer sleeve and the inner sleeve. The two ends of the outer sleeve are provided with water inlet nozzle seats and water outlet nozzle seats. The two ends of the inner sleeve are provided with glue discharge interface connecting flanges and pneumatic ball valve connecting flanges.

[0016] The advantages and beneficial effects of the utility model are as follows: the utility model provides a binder removal system using vacuum equipment, which has simple structure, convenient operation, large binder removal capacity, easy cleaning, easy repair, good sealing, low cost and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a binder removal system using vacuum equipment in the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the water-cooling horizontal pipe in the utility model;

[0019] Figure 3 It is the front view of the three-way in the utility model;

[0020] Figure 4 yes Figure 3 Left view of

[0021] Figure 5 yes Figure 3 AA section view;

[0022] Figure 6 It is a structural schematic diagram of the filtering device in the utility model.

[0023] In the figure: 1 is a water-cooled horizontal pipe, 2 is a pneumatic ball valve, 3 is a horizontal pipe, 4 is a manual ball valve, 5 is a lower elbow, 6 is a vertical elbow, 7 is a horizontal elbow, 8 is an elbow, 9 is a tee, 10 is a filtering device, 11 is a degumming interface connecting flange, 12 is an inner sleeve, 13 is a water inlet nozzle seat, 14 is an outer sleeve, 15 is a retaining ring, 16 is a pneumatic ball valve connecting flange, 17 is a water outlet nozzle seat, 18 is a vacuum pump, 31 is a three-way cavity, 32 is an air inlet flange, 33 is a side flange, 34 is a dredging flange, 35 is a dredging blind plate, 36 is a connector, 37 is an elbow, 38 is a straight pipe, 39 is a sealing ring, 41 is a connecting flange, 42 is a filter element pipe, 43 is a filter element, 44 is a fixing block, 45 is a blind plate flange, and 46 is a filter element blind plate. DETAILED DESCRIPTION

[0024] The binder removal system of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] like Figure 1 As shown, the utility model provides a debinding system applied to vacuum equipment, including a water-cooled transverse pipe 1, a pneumatic ball valve 2, a debinding pipeline, a tee 9, a filtering device 10 and a vacuum pump 18, wherein the water-cooled transverse pipe 1 is fixed on the debinding pipe of the vacuum furnace body, one end of the debinding pipeline is connected to the water-cooled transverse pipe 1 through the pneumatic ball valve 2, the other end of the debinding pipeline is connected to the filtering device 10 through the tee 9, the filtering device 10 is connected to the vacuum pump 18, and the vacuum pump 18 provides conveying power for debinding.

[0026] like Figure 1 As shown, in the embodiment of the utility model, the rubber discharge pipeline includes a horizontal pipe 3, a lower bend pipe 5, a vertical pipe 6, a horizontal bend pipe 7 and an elbow 8 which are connected end to end in sequence, wherein the horizontal pipe 3 is connected to the pneumatic ball valve 2, and the elbow 8 is connected to the tee.

[0027] Furthermore, the pneumatic ball valve 2 is fixed to the water-cooled horizontal pipe 1 by bolts. The pneumatic ball valve 2 can control the gas source through the solenoid valve to open and close the ball valve, which is simple, convenient and labor-saving to operate. A manual ball valve 4 is connected between the horizontal pipe 3 and the lower curved pipe 5 by bolts. The manual ball valve 4 is manually controlled. While the pneumatic ball valve 2 is controlled, the manual ball valve 4 is also provided to ensure the safety and reliability of the entire system. When the pneumatic ball valve 2 fails, the manual ball valve 4 can be used to control the entire system.

[0028] Furthermore, the transverse bend pipe 7 and the elbow 8 are softly connected via a bellows, ensuring that the transverse bend pipe 7 and the elbow 8 can be adjusted and connected to be incorporated into the entire vacuum system through the bellows in the case of a small error.

[0029] like Figure 2As shown, in the embodiment of the utility model, the water-cooling transverse pipe 1 includes an inner sleeve 12 and an outer sleeve 14 sleeved on the outer side of the inner sleeve, the two ends of the outer sleeve 14 are sealed by a retaining ring 15, a water-cooling cavity is formed between the outer sleeve 14 and the inner sleeve 12, the two ends of the outer sleeve 14 are provided with a water inlet nozzle seat 13 and a water outlet nozzle seat 17, and the two ends of the inner sleeve 12 are welded with a debonding interface connection flange 11 and a pneumatic ball valve connection flange 16. The debonding interface connection flange 11 and the pneumatic ball valve connection flange 16 are both provided with through holes and can be fixed with other components by bolts, and the installation and disassembly are simple and easy to operate. Facing the airflow direction, the debonding interface connection flange 11 is provided with a sealing groove, and a sealing ring is used to ensure the sealing of the pipeline.

[0030] Specifically, the retaining ring 15, the outer sleeve 14 and the inner sleeve 12 are connected by welding to form a water jacket cooling pipe. The outer sleeve 14 has openings at both ends, one above and one below. The water inlet nozzle seat 13 and the water outlet nozzle seat 17 are welded at the two openings respectively. After all the welding is completed, water pressure is applied to the cooling water circulation water jacket. The pressure in the water jacket is 4kg / cm 2 , there must be no leakage within half an hour.

[0031] During operation, the water jacket cooling water circulation structure of the water-cooled horizontal pipe 1 is provided with water inlet and return joints at both ends. The cooling water circulation in the water jacket takes away the heat to quickly cool down the high-temperature gas in the furnace, thereby separating the glue and lipid impurities in the gas, and the vacuum pump 18 is used to transport the glue and lipid impurities to the filtering device 10.

[0032] like Figure 3-4 As shown, in the embodiment of the utility model, the tee 9 includes a tee cavity 31 and an air inlet flange 32, a side flange 33 and a dredging flange 34 arranged on the tee cavity 31, wherein the air inlet flange 32 is connected to the elbow 8 in the glue discharge pipeline, and the side flange 33 is connected to the air inlet end of the filter device 10. The dredging flange 34 is convenient for the subsequent glue removal and supply suspension, and a dredging blind plate 35 is installed on the outside of the dredging flange 34 to ensure the sealing during operation.

[0033] Furthermore, a connecting pipe is provided inside the three-way cavity 31 , one end of the connecting pipe is connected to the air outlet of the filter device 10 , and the other end of the connecting pipe passes through the three-way cavity 31 and is connected to the vacuum pump 18 .

[0034] Specifically, Figure 5As shown, the connecting pipe includes a connector 36, an elbow 37 and a straight pipe 38 connected in sequence, wherein the end of the connector 36 is connected to the air inlet end of the filter device 10, and the end of the straight pipe 38 passes through the bottom of the three-way cavity 31 and is connected to the vacuum pump 18. The three-way cavity 31 and the straight pipe 38 are sealed by a sealing ring 39 to seal the three-way cavity 31 to ensure that the intake air must flow through the filter device 10 and then flow out through the straight pipe 38. One side of the connector 36 is a threaded structure for fixing with the filter element, and a vacuum pump connection flange is welded on the lower side of the straight pipe 38 for connecting with the vacuum pump 18, so that the vacuum pump 18 provides a power source for the entire system.

[0035] like Figure 6 As shown, in the embodiment of the utility model, the filtering device 10 includes a filter element pipe 42, a filter element 43 and a filter element blind plate 46, wherein the two ends of the filter element pipe 42 are respectively provided with a connecting flange 41 and a blind plate flange 45, the connecting flange 41 is connected to the side flange 33 of the three-way cavity 31, the filter element 43 is accommodated in the filter element pipe 42, and the inner end of the filter element 43 is connected to the blind plate flange 45 through the filter element blind plate 46, and the other end of the filter element 43 is connected to the connecting pipe.

[0036] Among them, the connecting flange 41 is provided with a plurality of circular through holes along the circumference, and is connected by hexagonal bolts, and the blind flange 45 is provided with a plurality of semicircular slotted holes along the circumference, and is fixed by slip-knot bolts. Compared with hexagonal bolts, it is more convenient to disassemble. The filter element needs to be replaced frequently here, so the structure here is optimized, and the fixing block 44 is welded to the side of the filter element pipe 42 close to the blind flange 45 to fix the slip-knot bolts needed here. The filter element blind plate 46 and the blind flange 45 are fixed together by slip-knot bolts to ensure the airtightness during operation and the stable flow of airflow through the filter element 43. One side of the filter element 43 has a threaded structure for connecting with the connector 36. It needs to be disassembled frequently here, and the threaded connection makes the filter element replacement process more convenient and simple.

[0037] In this embodiment, the tee 9 is used for desilting the whole system, and provides an interface for installing the rubber filter element and the filter element pipe. The filter device 10 is connected through the reserved interface of the tee 9, and is equipped with a filter element blind plate 46 to ensure that all the gases are filtered by the filter element and then discharged through the vacuum pump 18. All connections are sealed with O-rings to ensure the airtightness of the whole system. The filter assembly in the filter device 10 is a replaceable filter element, which is easy to disassemble and provides convenience for replacement and cleaning. Its material can be selected according to the type of de-glueing, providing more possibilities for sintering products and processes.

[0038] The utility model provides a debinding system applied to vacuum equipment, and the working principle is:

[0039] During operation, the vacuum system is in the startup state, the circulating cooling water in the water jacket of the water-cooled transverse pipe 1 is in the connected state, the cooling water is ensured to circulate, the switch of the pneumatic ball valve 2 is turned on, and the manual ball valve 4 is in the normally open state. Usually, the high-temperature gas in the furnace contains gaseous glue or lipid substances that are easy to solidify at room temperature. The circulating cooling water in the water-cooled transverse pipe 1 makes the high-temperature gas cool down quickly, thereby separating the glue or lipid impurities in the gas, and then using the vacuum pump 18 as a power source to transport the glue or lipid impurities along the air flow to the filter device 10, the glue or lipid impurities are filtered by the filter element, and the purified gas is extracted by the vacuum pump 18. When stopping, it is only necessary to close the pneumatic ball valve 2. If the pneumatic ball valve 2 fails and cannot be closed normally, a backup measure can be adopted to manually close the manual ball valve 4, and the pneumatic ball valve 2 can be inspected after the work is completed. Perform regular maintenance and cleaning, evaluate the generation of impurities according to the product and working conditions, set the cleaning and replacement cycle, disassemble and remove the glue of the water-cooled cross pipe 1 to ensure the water-cooled gel effect, disassemble and remove the glue of the tee 9 and the filter device 10, and replace the filter element 43 to ensure the filtering effect and prevent glue and lipid impurities from entering the vacuum pump 18 and causing damage to the motor or mechanical parts in the pump.

[0040] In this embodiment, the glue of the raw material is discharged in a high-temperature steam state. The high temperature of the glue steam will destroy the sealing ring and pipeline of the glue removal system, so a water-cooled cross pipe 1 is added to the front end of the glue removal system, and cooling water is circulated through the water-cooled cross pipe 1 to achieve a cooling effect, so that the glue steam is cooled before entering the glue removal system, protecting the sealing ring and pipeline of the system. This glue removal system can control the glue removal through the pneumatic ball valve 2 and the manual ball valve 4, avoiding the problem of glue removal in case of emergencies. This glue removal system can filter the glue steam through the filter device 10 through the vacuum pump 18, and will not pass through the vacuum pump 18. The filtered glue can be discharged through the filter device 10 and the tee 9. Because this glue removal system is connected to the inside of the vacuum equipment, it is required that the sealing effect of the entire glue removal system is good, otherwise the atmosphere will enter the inside of the vacuum equipment through the glue removal system, destroying the vacuum environment of the raw material sintering, especially making the movement state of the valve when opening and closing easy to seal poorly, so this glue removal system selects a stainless steel ball valve with a good sealing effect to ensure the sealing of the entire glue removal system. During the debinding process of this debinding system, a small amount of glue vapor will solidify on the inner wall of the pipe, especially at the position of the water-cooled horizontal pipe 1. Since the circulating cooling water is introduced, the pipe wall of the water-cooled horizontal pipe 1 is kept at a relatively low temperature, so a small amount of glue vapor will condense on the inner wall of the water-cooled horizontal pipe 1 when it is cold. After a long period of accumulation, the pipe diameter will become smaller, affecting the debinding speed, so it needs to be cleaned regularly. By disassembling the water-cooled horizontal pipe 1, the glue solidified on the inner wall of the pipe can be cleaned quickly and conveniently.

[0041] The utility model uses the vacuum system dust removal and glue removal device to remove glue, and uses the vacuum system vacuum pump as the power to transport glue and lipid impurities, maximizing the utilization of resources and saving costs. The utility model plays a vital role in the sintering of raw materials by vacuum equipment, greatly improving the qualified rate of sintering raw materials by vacuum equipment and the service life of insulation materials in vacuum furnaces.

[0042] The above description is only an implementation method of the utility model and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, expansion, etc. made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. A debinding system for vacuum equipment, characterized in that: The invention comprises a water-cooling transverse pipe (1), a pneumatic ball valve (2), a glue discharge pipeline, a tee (9), a filtering device (10) and a vacuum pump (18), wherein the water-cooling transverse pipe (1) is fixed on a glue discharge pipe of a vacuum furnace body, one end of the glue discharge pipeline is connected to the water-cooling transverse pipe (1) via the pneumatic ball valve (2), the other end of the glue discharge pipeline is connected to the filtering device (10) via the tee (9), and the filtering device (10) is connected to the vacuum pump (18).

2. The binder removal system for vacuum equipment according to claim 1, characterized in that: The tee (9) comprises a tee cavity (31) and an air inlet flange (32), a side flange (33) and a dredging flange (34) arranged on the tee cavity (31), wherein the air inlet flange (32) is connected to the other end of the degumming pipeline, and the side flange (33) is connected to the air inlet end of the filtering device (10); a dredging blind plate (35) is installed on the outer side of the dredging flange (34) to ensure sealing during operation.

3. The binder removal system for vacuum equipment according to claim 2, characterized in that: A connecting pipe is provided inside the three-way cavity (31), one end of the connecting pipe is connected to the air outlet end of the filtering device (10), and the other end of the connecting pipe passes through the three-way cavity (31) and is connected to the vacuum pump (18).

4. The binder removal system for vacuum equipment according to claim 3, characterized in that: The connecting pipe comprises a connector (36), a curved pipe (37) and a straight pipe (38) which are connected in sequence, wherein the end of the connector (36) is connected to the air inlet end of the filtering device (10), the end of the straight pipe (38) passes through the three-way cavity (31) and is connected to the vacuum pump (18), and the three-way cavity (31) and the straight pipe (38) are sealed by a sealing ring (39).

5. The binder removal system for vacuum equipment according to claim 3, characterized in that: The filter device (10) comprises a filter element pipe (42), a filter element (43) and a filter element blind plate (46), wherein two ends of the filter element pipe (42) are respectively provided with a connecting flange (41) and a blind plate flange (45), the connecting flange (41) is connected to the side flange (33) of the three-way cavity (31), the filter element (43) is accommodated in the filter element pipe (42), and the inner side end of the filter element (43) is connected to the blind plate flange (45) through the filter element blind plate (46), and the other end of the filter element (43) is connected to the connecting pipe.

6. The binder removal system for vacuum equipment according to claim 2, characterized in that: The debonding pipeline comprises a transverse pipe (3), a lower bend pipe (5), a vertical pipe (6), a transverse bend pipe (7) and an elbow (8) which are connected end to end in sequence, wherein the transverse pipe (3) is connected to the pneumatic ball valve (2), and the elbow (8) is connected to the air inlet flange (32) of the three-way cavity (31).

7. The binder removal system for vacuum equipment according to claim 6, characterized in that: A manual ball valve (4) is connected between the transverse pipe (3) and the lower curved pipe (5).

8. The binder removal system for vacuum equipment according to claim 6, characterized in that: The transverse bend pipe (7) and the elbow (8) are softly connected via a bellows.

9. The binder removal system for vacuum equipment according to claim 1, characterized in that: The water-cooling transverse pipe (1) comprises an inner sleeve (12) and an outer sleeve (14) sleeved on the outer side of the inner sleeve, the two ends of the outer sleeve (14) are sealed by a retaining ring (15), a water-cooling cavity is formed between the outer sleeve (14) and the inner sleeve (12), the two ends of the outer sleeve (14) are provided with a water inlet nozzle seat (13) and a water outlet nozzle seat (17), and the two ends of the inner sleeve (12) are provided with a debonding interface connecting flange (11) and a pneumatic ball valve connecting flange (16).

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