Explosive negative-pressure suction filtration butt joint structure based on annular sealing and using method of explosive negative-pressure suction filtration butt joint structure

Abstract

The invention relates to the technical field of liquid explosive conveying butt joint, aims at solving the problems that in the prior art, butt joint cannot be achieved under the condition of large deviation of pipeline concentricity, the sealing performance is poor, and automatic through cannot be achieved after pipelines are butt-jointed, and provides an explosive negative pressure suction filtration butt joint structure based on circumferential sealing and a using method thereof. One end, close to the container side, of the suction filtration side is hermetically matched in one end, close to the suction filtration side, of the container side; the suction filtration side is provided with a fixed pipe, a sealing ball elastically abuts against the interior of the end, close to the container side, of the fixed pipe, the container side is provided with a movable pipe, an ejector rod is arranged in the movable pipe and extends in the axial direction of the movable pipe, an annular sealing piece is arranged between the movable pipe and the fixed pipe, and the outer side face of the annular sealing piece is detachably attached to the inner wall of the movable pipe. The pipeline butt joint device has the beneficial effects that butt joint can still be achieved under the condition of large concentricity deviation of pipelines, the sealing performance is good, and the pipelines can be automatically communicated after butt joint.

Description

Technical Field

[0001] The invention relates to the technical field of liquid explosive delivery docking, and in particular to an annular seal-based explosive negative pressure filtration docking structure and a use method thereof. Background Art

[0002] At present, explosive slurry is widely used in the field of civil engineering. Liquid explosives have uniform density and stable detonation velocity. Most liquid explosives have good detonation and explosion transmission performance and a small critical diameter, which is incomparable to solid explosives. Liquid explosives are suitable for crack network blasting and surface trace blasting, which is also the characteristic of safety and reliability. The use of liquid explosives is not limited by the work site and means. The raw material components can be transported separately and prepared on site, or they can be pumped to the use site. The blasting container can also be positioned and placed first, and the installation workers can be evacuated before filling the explosives to avoid or shorten the operation time with explosives and increase safety. However, when the liquid explosives delivery pipeline is currently docked, the pipeline concentricity cannot be docked if the deviation is large, and it cannot be stably sealed after docking. Moreover, the current pipeline docking cannot achieve automatic docking and transportation. After docking, personnel need to manually open the docking pipeline to make it through before the explosive slurry can be transported. In this way, the safety of personnel cannot be guaranteed, and the safety of the site is unreliable during the transportation of explosive slurry. Summary of the invention

[0003] The present invention aims to provide an annular seal-based explosive negative pressure filtration docking structure and a method of using the same, so as to solve the problems in the prior art of being unable to dock when the concentricity of the pipeline is large, poor sealing, and unable to automatically penetrate after the pipeline is docked.

[0004] The embodiment of the present invention is achieved as follows:

[0005] The embodiment of the present invention provides an annular seal-based explosive negative pressure filtration docking structure, which includes a filtration side and a container side;

[0006] One end of the suction filtration side close to the container side can be sealably fitted into one end of the container side close to the suction filtration side;

[0007] The above-mentioned filtration side has a fixed tube, and a sealing ball is elastically pressed against the inside of one end of the fixed tube close to the above-mentioned container side. The above-mentioned container side has a movable tube, and a push rod is arranged inside the movable tube. The push rod is extended along the axial direction of the movable tube. An annular seal is provided between the movable tube and the fixed tube, and the outer side surface of the annular seal can be detachably fitted to the inner wall of the movable tube.

[0008] The negative pressure filtration docking structure for explosives based on annular sealing disclosed in the present embodiment realizes the unobstructed flow of the pipeline by pushing open the sealing ball through the push rod, and is arranged on the fixed pipe through the movable pipe sleeve and sealed with the annular sealing member, thereby ensuring the sealing during the transportation of the explosive slurry. As a result, the negative pressure filtration docking structure for explosives based on annular sealing has the beneficial effects of being able to dock even when the concentricity of the pipeline is greatly deviated, having good sealing, and being able to automatically pass through the pipeline after docking.

[0009] Optionally: the diameter of the movable tube is greater than the diameter of the fixed tube.

[0010] Such arrangement facilitates the insertion of the fixed tube into the movable tube, and even when the fixed tube and the movable tube are docked with each other at large angle deviation, they can still be docked successfully, thereby ensuring stable sealing after docking.

[0011] Optionally: the sealing ball is a solid stainless steel ball.

[0012] In this way, setting the sealing ball as a solid stainless steel ball can prevent the sealing ball from rusting, thereby affecting the sealing effect of the sealing ball. The solid sphere prevents the sealing ball from being deformed by the push rod, thereby avoiding affecting the sealing performance of the sealing ball.

[0013] Optionally: a return spring is provided on the side of the sealing ball away from the push rod, a spring mounting plate is provided on the end of the return spring away from the sealing ball, the spring mounting plate is vertically connected to the inner wall of the fixed tube, the end of the return spring close to the sealing ball elastically presses against the sealing ball, and the end of the return spring close to the spring mounting plate elastically presses against the spring mounting plate.

[0014] With such arrangement, the return spring provides elastic pressure for the sealing ball under the support of the spring mounting plate, so that the sealing ball elastically presses against one end of the fixed tube close to the movable tube.

[0015] Optionally, a plurality of first through holes are formed on the spring mounting plate, and the plurality of first through holes penetrate the spring mounting plate along the axial direction of the fixing tube, and the plurality of first through holes are evenly arranged along the circumferential direction of the spring mounting plate.

[0016] In this way, the arrangement of the plurality of first through holes is beneficial to the circulation of explosive slurry.

[0017] Optionally: the fixed tube has a conical sleeve at one end close to the movable tube, the large end of the conical sleeve is fixedly connected to the fixed tube at one end close to the movable tube, the sealing ball is limited inside the conical sleeve, and the outer wall of the conical sleeve has a conical surface.

[0018] With such arrangement, the interior of the conical sleeve can restrict the sealing ball to prevent the sealing ball from being pushed out by the return spring. At the same time, the sealing ball cooperates with the conical sleeve to improve the sealing effect, and the conical surface of the conical sleeve has a guiding function, which facilitates the insertion of the fixed tube into the interior of the movable tube.

[0019] Optionally: a fixing plate is provided inside the movable tube, the outer edge of the fixing plate is vertically fixedly connected to the inner wall of the movable tube, one end of the push rod close to the fixing plate is vertically fixedly connected to the center of the fixing plate, and the push rod and the fixing plate are integrated with each other.

[0020] With such arrangement, the fixing plate provides stable support for the push rod, which is conducive to the push rod pushing open the sealing ball, thereby facilitating the transportation of the explosive slurry.

[0021] Optionally, a plurality of second through holes are formed on the fixing plate, and the plurality of second through holes penetrate the fixing plate along the axial direction of the movable tube, and the plurality of second through holes are evenly arranged along the circumferential direction of the fixing plate.

[0022] In this way, the provision of the plurality of second through holes is beneficial to the circulation of explosive slurry.

[0023] Optionally: the annular sealing member has an annular sealing airbag, which is detachably sealed and connected to the inner wall of one end of the movable tube close to the fixed tube. An inflation port is provided on the outer wall of the annular sealing airbag, and a sealing cover is connected to the inflation port.

[0024] In this way, the annular sealing airbag can seal the gap between the fixed tube and the movable tube to prevent leakage of explosive slurry during transportation. At the same time, the annular sealing airbag is arranged in a detachable installation mode, which is convenient for staff to replace the annular sealing airbag, thereby ensuring the sealing between the fixed tube and the movable tube. The inflation port is convenient for inflating the annular sealing airbag, and the sealing cover is helpful to prevent foreign matter from entering the annular sealing airbag, thereby affecting the service life of the annular sealing airbag.

[0025] In one implementation of the present embodiment: a method for using an annular seal-based negative pressure filtration docking structure for explosives is also provided. First, due to the high risk of explosive slurry, the negative pressure pipeline docking in the negative pressure filtration dehydration of the explosive slurry is automatically docked. First, the tank truck carrying the explosive slurry is transported to the vicinity of the above-mentioned filtration side. Secondly, the above-mentioned movable pipe is automatically docked with the above-mentioned fixed pipe. Due to the setting of the above-mentioned conical sleeve, the above-mentioned fixed pipe can still be successfully docked in the case of a large angle deviation. Thirdly, the above-mentioned sealing ball is pushed toward the inside of the above-mentioned fixed pipe by the above-mentioned push rod, so that the above-mentioned The fixed tube and the movable tube are connected to each other in a filtration circuit, so that the explosive slurry can be input from the movable tube to the fixed tube. Then, the sealing cover on the inflation port is opened, and air is inflated into the interior of the annular sealing airbag through the inflation port, so that the annular sealing airbag is sealed and clamped between the fixed tube and the movable tube to achieve sealing. Finally, when the explosive slurry is transported, the gas inside the annular sealing airbag is released, so that the fixed tube and the movable tube can be separated, and the sealing ball is pressed against the interior of the conical sleeve under the action of the return spring to achieve sealing.

[0026] In summary, the annular seal-based explosive negative pressure filtration docking structure and its use method disclosed in the present invention have the beneficial effects of being able to dock even when the concentricity of the pipeline is large, having good sealing performance, and being able to automatically penetrate the pipeline after docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the docking state structure of an annular seal-based explosive negative pressure filtration docking structure in an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the filtration side in an embodiment of the present invention;

[0030] Figure 3 It is a schematic structural diagram of the container side in an embodiment of the present invention.

[0031] Icons: 1- filtration side, 2- container side, 3- fixed tube, 4- sealing ball, 5- movable tube, 6- push rod, 7- annular seal, 8- return spring, 9- spring mounting plate, 10- first through hole, 11- conical sleeve, 12- conical surface, 13- fixed plate, 14- second through hole, 15- annular sealing airbag. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example

[0035] See also Figure 1 , Figure 2 and Figure 3 , this embodiment proposes an explosive negative pressure filtration docking structure based on annular sealing, including a filtration side 1 and a container side 2;

[0036] One end of the suction filtration side 1 close to the container side 2 can be sealably fitted into one end of the container side 2 close to the suction filtration side 1;

[0037] The filtration side 1 has a fixed tube 3, and a sealing ball 4 is elastically pressed against the inner side of the fixed tube 3 at one end close to the container side 2. The container side 2 has a movable tube 5, and a push rod 6 is arranged inside the movable tube 5. The push rod 6 is arranged to extend along the axial direction of the movable tube 5. An annular seal 7 is provided between the movable tube 5 and the fixed tube 3, and the outer side surface of the annular seal 7 can be detachably fitted to the inner wall of the movable tube 5.

[0038] The negative pressure filtration docking structure for explosives based on annular sealing disclosed in the present embodiment realizes the unobstructed flow of the pipeline by pushing open the sealing ball 4 through the push rod 6, and the movable tube 5 is sleeved on the fixed tube 3 and sealed with the annular seal 7, thereby ensuring the sealing during the transportation of the explosive slurry. As a result, the negative pressure filtration docking structure for explosives based on annular sealing has the beneficial effects of being able to dock even when the concentricity of the pipeline is greatly deviated, having good sealing, and being able to automatically penetrate the pipeline after docking.

[0039] See also Figure 1 , Figure 2 and Figure 3 The diameter of the movable tube 5 is larger than that of the fixed tube 3, which is conducive to the insertion of the fixed tube 3 into the movable tube 5. Even when the fixed tube 3 and the movable tube 5 are docked with each other, they can still be successfully docked in the case of a large angle deviation, thereby ensuring a stable seal after docking.

[0040] The sealing ball 4 is a solid stainless steel ball. Setting the sealing ball 4 as a solid stainless steel ball can prevent the sealing ball 4 from rusting, thereby affecting the sealing effect of the sealing ball 4. The solid sphere prevents the sealing ball 4 from being deformed by the push rod 6, thereby avoiding affecting the sealing performance of the sealing ball 4.

[0041] A return spring 8 is provided on the side of the sealing ball 4 away from the push rod 6, and a spring mounting plate 9 is provided on the end of the return spring 8 away from the sealing ball 4. The spring mounting plate 9 is vertically connected to the inner wall of the fixed tube 3. The end of the return spring 8 close to the sealing ball 4 elastically presses against the sealing ball 4, and the end of the return spring 8 close to the spring mounting plate 9 elastically presses against the spring mounting plate 9. Under the support of the spring mounting plate 9, the return spring 8 provides elastic pressure for the sealing ball 4, so that the sealing ball 4 elastically presses against the end of the fixed tube 3 close to the movable tube 5.

[0042] A plurality of first through holes 10 are provided on the spring mounting plate 9. The plurality of first through holes 10 all penetrate the spring mounting plate 9 along the axial direction of the fixing tube 3. The plurality of first through holes 10 are evenly arranged along the circumferential direction of the spring mounting plate 9. The arrangement of the plurality of first through holes 10 is beneficial to the circulation of the explosive slurry.

[0043] The fixed tube 3 has a conical sleeve 11 at one end close to the movable tube 5, and the large end of the conical sleeve 11 is fixedly connected to the end of the fixed tube 3 close to the movable tube 5. The sealing ball 4 is limited inside the conical sleeve 11, and the outer wall of the conical sleeve 11 has a conical surface 12. The inside of the conical sleeve 11 can limit the sealing ball 4 to prevent the sealing ball 4 from being pushed out by the return spring 8. At the same time, the sealing ball 4 cooperates with the conical sleeve 11 to improve the sealing effect, and the conical surface 12 of the conical sleeve 11 has a guiding function, which facilitates the fixed tube 3 to be inserted into the movable tube 5.

[0044] See also Figure 1 , Figure 2 and Figure 3 A fixing plate 13 is provided inside the movable tube 5, and the outer edge of the fixing plate 13 is vertically fixedly connected to the inner wall of the movable tube 5. One end of the push rod 6 close to the fixing plate 13 is vertically fixedly connected to the center of the fixing plate 13. The push rod 6 and the fixing plate 13 are integrally formed with each other. The fixing plate 13 provides a stable support for the push rod 6, which is conducive to the push rod 6 to push open the sealing ball 4, thereby facilitating the transportation of the explosive slurry.

[0045] The fixed plate 13 is provided with a plurality of second through holes 14 , which penetrate the fixed plate 13 along the axial direction of the movable tube 5 and are evenly arranged along the circumferential direction of the fixed plate 13 . The arrangement of the plurality of second through holes 14 is conducive to the circulation of explosive slurry.

[0046] The annular seal 7 has an annular sealing airbag 15, which is detachably sealed and connected to the inner wall of one end of the movable tube 5 close to the fixed tube 3. An inflation port (not shown in the figure) is provided on the outer wall of the annular sealing airbag 15, and a sealing cover (not shown in the figure) is connected to the inflation port. The annular sealing airbag 15 can seal the gap between the fixed tube 3 and the movable tube 5 to prevent leakage of explosive slurry during transportation. At the same time, the annular sealing airbag 15 is arranged in a detachable installation mode, which is convenient for the staff to replace the annular sealing airbag 15, thereby ensuring the sealing between the fixed tube 3 and the movable tube 5. The inflation port is convenient for inflating the annular sealing airbag 15, and the sealing cover is conducive to preventing external substances from entering the annular sealing airbag 15, thereby affecting the service life of the annular sealing airbag 15.

[0047] See also Figure 1 , Figure 2 and Figure 3 In this embodiment, the annular sealing airbag 15 is made of soft rubber and can be easily replaced.

[0048] In this embodiment, the internal structure of the device is simple, without complicated movement mechanisms, and water flushing can be conveniently used to ensure cleanliness.

[0049] In this embodiment, the entire docking structure is made of stainless steel, which is safe and reliable.

[0050] In this embodiment, the filtration side 1 is installed in a fixed position, and the container side 2 is installed on a mobile tank truck. After the tank truck is in place, the push rod 6 automatically pushes open the sealing ball 4, thereby connecting the filtration circuit, and the annular sealing airbag 15 is inflated to wrap the outside of the movable tube 5 to achieve sealing.

[0051] In this embodiment, Figure 1 The arrow in the figure indicates the direction of explosive slurry transportation.

[0052] See also Figure 1 , Figure 2 and Figure 3In one implementation of the present embodiment: a method for using the explosive negative pressure filtration docking structure based on annular sealing is also provided. First, due to the high risk of explosive slurry, the negative pressure pipeline docking in the negative pressure filtration dehydration of explosive slurry is automatically docked. First, the tank truck carrying the explosive slurry is transported to the vicinity of the filtration side 1. Secondly, the fixed pipe 3 is automatically docked through the movable pipe 5. Due to the setting of the conical sleeve 11, the fixed pipe 3 can still be successfully docked in the case of a large angle deviation. Thirdly, the sealing ball 4 is pushed toward the inside of the fixed pipe 3 through the push rod 6, so that The fixed tube 3 and the movable tube 5 are connected to each other in a filtration circuit, so that the explosive slurry can be input from the movable tube 5 into the fixed tube 3. Then, the sealing cover on the inflation port is opened, and air is inflated into the interior of the annular sealing airbag 15 through the inflation port, so that the annular sealing airbag 15 is sealed and clamped between the fixed tube 3 and the movable tube 5 to achieve sealing. Finally, when the explosive slurry is transported, the gas inside the annular sealing airbag 15 is released, so that the fixed tube 3 and the movable tube 5 can be separated, and the sealing ball 4 is pressed against the interior of the conical sleeve 11 under the action of the return spring 8 to achieve sealing.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An explosive negative pressure filtration docking structure based on annular sealing, characterized in that: It comprises a suction filtration side (1) and a container side (2); One end of the suction filtration side (1) close to the container side (2) can be sealably adapted inside one end of the container side (2) close to the suction filtration side (1); The filtration side (1) has a fixed tube (3), and a sealing ball (4) is elastically pressed against the inner side of one end of the fixed tube (3) close to the container side (2). The container side (2) has a movable tube (5), and a push rod (6) is provided inside the movable tube (5). The push rod (6) is arranged along the axial direction of the movable tube (5). An annular seal (7) is provided between the movable tube (5) and the fixed tube (3), and the outer side surface of the annular seal (7) is detachably attached to the inner wall of the movable tube (5).

2. The explosive negative pressure filtration docking structure based on annular seal according to claim 1, characterized in that: The diameter of the movable tube (5) is greater than the diameter of the fixed tube (3).

3. The explosive negative pressure filtration docking structure based on annular seal according to claim 1, characterized in that: The sealing ball (4) is a solid stainless steel ball.

4. The explosive negative pressure filtration docking structure based on annular seal according to claim 1, characterized in that: A return spring (8) is provided on the side of the sealing ball (4) away from the push rod (6); a spring mounting plate (9) is provided on the end of the return spring (8) away from the sealing ball (4); the spring mounting plate (9) is vertically connected to the inner wall of the fixed tube (3); the end of the return spring (8) close to the sealing ball (4) elastically presses against the sealing ball (4); and the end of the return spring (8) close to the spring mounting plate (9) elastically presses against the spring mounting plate (9).

5. The explosive negative pressure filtration docking structure based on annular seal according to claim 4, characterized in that: The spring mounting plate (9) is provided with a plurality of first through holes (10), the plurality of first through holes (10) all penetrate the spring mounting plate (9) along the axial direction of the fixing tube (3), and the plurality of first through holes (10) are evenly arranged along the circumferential direction of the spring mounting plate (9).

6. The explosive negative pressure filtration docking structure based on annular seal according to claim 1, characterized in that: The fixed tube (3) has a conical sleeve (11) at one end close to the movable tube (5); the large end of the conical sleeve (11) is fixedly connected to the end of the fixed tube (3) close to the movable tube (5); the sealing ball (4) is positioned inside the conical sleeve (11); and the outer wall of the conical sleeve (11) has a conical surface (12).

7. The explosive negative pressure filtration docking structure based on annular seal according to claim 1, characterized in that: A fixing plate (13) is provided inside the movable tube (5), the outer edge of the fixing plate (13) is vertically fixedly connected to the inner wall of the movable tube (5), one end of the push rod (6) close to the fixing plate (13) is vertically fixedly connected to the center of the fixing plate (13), and the push rod (6) and the fixing plate (13) are integrally formed.

8. The explosive negative pressure filtration docking structure based on annular seal according to claim 7, characterized in that: The fixing plate (13) is provided with a plurality of second through holes (14), the plurality of second through holes (14) all penetrate the fixing plate (13) along the axial direction of the movable tube (5), and the plurality of second through holes (14) are evenly arranged along the circumferential direction of the fixing plate (13).

9. The explosive negative pressure filtration docking structure based on annular seal according to claim 1, characterized in that: The annular sealing member (7) comprises an annular sealing airbag (15), which is detachably and sealingly connected to the inner wall of one end of the movable tube (5) close to the fixed tube (3), and an inflation port is arranged on the outer wall of the annular sealing airbag (15), and a sealing cover is connected to the inflation port.

10. A method for using the explosive negative pressure filtration docking structure based on annular seal according to any one of claims 1 to 9, characterized in that: Firstly, due to the high risk of explosive slurry, the negative pressure pipeline docking in the negative pressure filtration dehydration of explosive slurry is automatically docked. First, the tank truck carrying explosive slurry is transported to the vicinity of the filtration side (1). Secondly, the movable pipe (5) is automatically docked with the fixed pipe (3). Due to the setting of the conical sleeve (11), the fixed pipe (3) can still be successfully docked even when the angle deviation is large. Thirdly, the sealing ball (4) is pushed toward the inside of the fixed pipe (3) by the push rod (6), so that the fixed pipe (3) and the movable pipe (5) are connected to each other in the filtration circuit, which is convenient for the explosive slurry to be discharged from the fixed pipe (3). The movable tube (5) is fed into the fixed tube (3), and then the sealing cover on the inflation port is opened, and air is inflated into the interior of the annular sealing airbag (15) through the inflation port, so that the annular sealing airbag (15) is sealed and clamped between the fixed tube (3) and the movable tube (5) to achieve sealing. Finally, when the explosive slurry is transported, the gas inside the annular sealing airbag (15) is released, so that the fixed tube (3) and the movable tube (5) can be separated, and the sealing ball (4) is pressed against the interior of the conical sleeve (11) under the action of the return spring (8) to achieve sealing.

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