A styrene loading and unloading station unloading device

Abstract

The invention discloses a styrene loading and unloading station unloading device. For the unloading work of styrene, the connection between the unloading pump and the conveying pipeline is more firmly connected through the invention, and has a good anti-leakage function. Through the provided connection anti-leakage groove, rubber sealing ring, connection anti-leakage ring and connection sealing groove, when the unloading work is carried out by the unloading pump, on the one hand, the two ends of the rubber sealing ring are respectively squeezed by the provided second movable extrusion block and the fourth movable extrusion block, thereby achieving the enhanced connection sealing anti-leakage effect. On the other hand, through the provided movable sleeve ring and the connection strengthening block, the connection strength between the first connection fixing ring and the second connection fixing ring can be strengthened, thereby improving the connection strength between the unloading pump output pipe and the conveying pipeline, thereby improving the overall safety of the unloading work and avoiding the occurrence of safety accidents.

Description

Technical Field

[0001] The invention relates to the technical field of styrene unloading equipment, in particular to a styrene loading and unloading station unloading device. Background Art

[0002] Styrene (C8H8) is an organic compound formed by replacing one hydrogen atom of ethylene with benzene. The electrons of the vinyl group are conjugated with the benzene ring. It is insoluble in water, but soluble in ethanol and ether. It gradually polymerizes and oxidizes when exposed to air. It is an important monomer for synthetic resins, ion exchange resins and synthetic rubber in industry. On October 27, 2017, the World Health Organization's International Agency for Research on Cancer published a preliminary list of carcinogens for reference, and styrene is on the list of Class 2B carcinogens. The main polymerization inhibitor in styrene is hydroquinone, which can be removed by vacuum distillation. First wash it with 10% NaOH one or two times, then wash it with water until the water is detected to be neutral, dry it with anhydrous magnesium sulfate overnight, filter it, and then distill it under reduced pressure. Pump it with a water pump at a temperature of about 68-70 degrees. Pure styrene is a colorless liquid. If it aggregates, it will turn light yellow and the viscosity of the liquid will increase, so it needs to be stored at low temperatures. It is also very harmful and is a high-risk item.

[0003] When styrene is unloaded, a chemical unloading pump is usually used for unloading. During the unloading process, a sealed environment must be ensured, that is, leakage must be prevented. Under the prior art, the connection and fixation between the output pipe of the unloading pump and the delivery pipeline are usually fixed by flanges and bolts, and a sealing ring is used for simple sealing and leakage prevention. On the one hand, the connection and leakage prevention strength is low, and styrene leakage is prone to occur during use. On the other hand, after long-term use, the connection between the unloading pump and the delivery pipeline may become loose, which may cause safety accidents.

[0004] To this end, the present invention proposes a styrene loading and unloading station unloading device for solving the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a styrene loading and unloading station unloading device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: a styrene loading and unloading station unloading device, comprising an unloading pump output pipe, a delivery pipeline, a first connection fixing ring, a second connection fixing ring and a reinforced connection anti-leakage mechanism;

[0007] The outer side wall of the connection end of the discharge pump output pipe is provided with a first connection fixing ring, the outer side wall of the connection end of the delivery pipeline is provided with a second connection fixing ring, and the first connection fixing ring is provided with a connection anti-leakage groove and an annular groove, a rubber sealing ring is movably provided in the annular groove, one end of the rubber sealing ring is equidistantly provided with a connection spring, and the other end of the connection spring is connected and provided in the annular groove;

[0008] The second connection fixing ring is provided with a connection anti-leakage ring and a connection sealing groove, and the side positions of the first connection fixing ring and the second connection fixing ring are both provided with a third fixing ring, one end of the third fixing ring is integrally provided with a circular ring protrusion, the circular ring protrusion is provided with threaded holes at equal intervals, a locking screw is provided in the threaded connection of the threaded hole, and the third fixing ring is provided with a connection thread, the third fixing ring is provided with an internal threaded collar in threaded connection, the outer side wall of the internal threaded collar is provided with first rotating protrusions at equal intervals, and one side of the internal threaded collar is provided with fixed circular grooves at equal intervals; the other end of the third fixing ring is also provided with a fourth fixing ring;

[0009] The fourth fixing ring is integrally formed and arranged at one end of the third fixing ring, a first movable extrusion column is equidistantly and movably arranged on the fourth fixing ring, a second movable extrusion column is integrally formed and arranged at one end of the first movable extrusion column, and a first return spring is integrally formed and connected to the same end of the second movable extrusion column as the first movable extrusion column, and the other end of the first return spring is arranged in the fourth fixing ring;

[0010] The first movable extrusion column is provided with a locking circular groove in the clamping connection, and the locking circular groove is symmetrically arranged on the enhanced connection anti-leakage mechanism.

[0011] Preferably, the enhanced connection anti-leakage mechanism includes a movable collar, an arc-shaped extrusion groove, a first movable extrusion block, a second movable extrusion block, a transmission block, a limit block, a first movable plug-in block, a second movable plug-in block, a third movable extrusion block, a fourth movable extrusion block, a movable groove, and a connection strengthening block. The movable collar is sleeved on the first connecting fixed ring, and locking circular grooves are symmetrically arranged at both ends of the movable collar, and second rotating protrusions are symmetrically welded on the outer wall of the movable collar, and arc-shaped extrusion grooves are equidistantly arranged on the movable collar, the first movable extrusion block is symmetrically and movably arranged in the first connecting fixed ring, and the second movable extrusion block is arranged at one end of the first movable extrusion block, and the second movable extrusion block is arranged at the same end as the first movable extrusion block. A second return spring is arranged, and the other end of the first movable extrusion block is movably arranged in the arc-shaped extrusion groove, and the transmission block is movably arranged In the movable sleeve, a first slope is arranged at one end of the transmission block, and limit blocks are symmetrically arranged on both sides of the transmission block, and a third return spring is connected to the limit blocks. The first movable plug block is movably arranged at the other end of the transmission block, and a second slope is arranged at one end of the first movable plug block and a second movable plug block is arranged at the other end. The second movable plug block is provided with a fourth return spring at the same end as the first movable plug block. The third movable extrusion block is symmetrically and movably arranged in the second connecting and fixing ring, and a fourth movable extrusion block is arranged at one end of the third movable extrusion block, and a fifth return spring is arranged at the same end as the fourth movable extrusion block, and a movable groove is arranged on the side of the third movable extrusion block, and the connection strengthening block is movably arranged on the side of the movable groove, and a third slope is arranged at one end of the connection strengthening block and an extrusion spring is arranged at the other end.

[0012] Preferably, the connection anti-leakage ring and the connection anti-leakage groove are arranged at corresponding positions, and the outer diameters of the two are equal.

[0013] Preferably, the first movable extrusion blocks and the arc-shaped extrusion grooves are arranged at corresponding positions and have the same number of groups.

[0014] Preferably, the third movable extrusion block and the second movable plug block are set in corresponding positions and have the same number of groups, and the cross-sectional shape of the end of the third movable extrusion block is the same as the cross-sectional shape of the end of the second movable plug block, that is, the lengths and widths of the two cross sections are equal.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] For the unloading of styrene, the connection between the unloading pump and the conveying pipeline is more firmly established through the present invention, and has a good anti-leakage function. The connection anti-leakage groove, rubber sealing ring, connection anti-leakage ring and connection sealing groove are set, so that when the unloading work is carried out by the unloading pump, double-layer sealing and anti-leakage work can be performed to provide a sealed and anti-leakage environment for the unloading work. The enhanced connection anti-leakage mechanism provided by the present invention, on the one hand, the two ends of the rubber sealing ring are respectively squeezed by the second movable extrusion block and the fourth movable extrusion block, thereby achieving an enhanced connection sealing and anti-leakage effect. On the other hand, the connection strength between the first connection fixing ring and the second connection fixing ring can be strengthened by the set movable sleeve and the connection strengthening block, thereby improving the connection strength between the unloading pump output pipe and the conveying pipeline, thereby improving the overall safety of the unloading work and avoiding the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the connection structure of the present invention;

[0018] Figure 2 It is an exploded left side schematic diagram of the connection structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the exploded right side of the connection structure of the present invention;

[0020] Figure 4 It is a partial cross-sectional view of the internal connection structure of the third fixing ring, the internal threaded sleeve ring and the fourth fixing ring of the present invention;

[0021] Figure 5 It is a schematic diagram of the left side of the exploded partial cross-section of the connection structure of the present invention;

[0022] Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of the internal connection of the middle movable ring;

[0023] Figure 7 For the present invention Figure 5 A partial enlarged schematic diagram of the internal connection structure of the second connecting fixing ring;

[0024] Figure 8 It is a schematic diagram of the right side of an exploded partial cross-section of the connection structure of the present invention.

[0025] In the figure: unloading pump output pipe 1, conveying pipeline 2, first connecting fixing ring 3, second connecting fixing ring 4, connecting anti-leakage groove 5, rubber sealing ring 6, connecting anti-leakage ring 7, connecting sealing groove 8, third fixing ring 9, internal threaded collar 10, fixed circular groove 11, fourth fixing ring 12, first movable extrusion column 13, second movable extrusion column 14, locking circular groove 15, enhanced connection anti-leakage mechanism 16, movable collar 1601, arc extrusion groove 1602, first movable extrusion block 1603, second movable extrusion block 1604, transmission block 1605, limit block 1606, first movable plug block 1607, second movable plug block 1608, third movable extrusion block 1609, fourth movable extrusion block 1610, movable groove 1611, connection strengthening block 1612. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0027] See Figure See Figure Figures 1 to 8 , the present invention provides a technical solution: a styrene loading and unloading station unloading device, the present invention comprises a discharge pump output pipe 1, a delivery pipeline 2, a first connection fixing ring 3, a second connection fixing ring 4 and a strengthening connection anti-leakage mechanism 16;

[0028] A first connecting and fixing ring 3 is provided on the outer side wall of the connecting end of the discharge pump output pipe 1, and a second connecting and fixing ring 4 is provided on the outer side wall of the connecting end of the delivery pipe 2, and a connecting and anti-leakage groove 5 and an annular groove are provided in the first connecting and fixing ring 3, a rubber sealing ring 6 is movably provided in the annular groove, and a connecting spring is equidistantly provided at one end of the rubber sealing ring 6, and the other end of the connecting spring is connected and provided in the annular groove;

[0029] The second connection fixing ring 4 is provided with a connection anti-leakage ring 7 and a connection sealing groove 8, and the side positions of the first connection fixing ring 3 and the second connection fixing ring 4 are both provided with a third fixing ring 9, one end of the third fixing ring 9 is integrally formed with a circular ring protrusion, the circular ring protrusion is equidistantly provided with threaded holes, the threaded holes are threadedly connected with locking screws, and the third fixing ring 9 is provided with a connection thread, the third fixing ring 9 is threadedly connected with an internal threaded collar 10, the outer side wall of the internal threaded collar 10 is equidistantly provided with first rotating protrusions, and one side of the internal threaded collar 10 is equidistantly provided with a fixing circular groove 11; the other end of the third fixing ring 9 is also provided with a fourth fixing ring 12;

[0030] The fourth fixing ring 12 is integrally formed and arranged at one end of the third fixing ring 9, and a first movable extrusion column 13 is equidistantly and movably arranged in the fourth fixing ring 12, and a second movable extrusion column 14 is integrally formed and arranged at one end of the first movable extrusion column 13, and the second movable extrusion column 14 is integrally formed and connected with a first return spring at the same end as the first movable extrusion column 13, and the other end of the first return spring is arranged in the fourth fixing ring 12;

[0031] The first movable extrusion column 13 is provided with a locking circular groove 15 in a clamping connection, and the locking circular groove 15 is symmetrically arranged on the enhanced connection anti-leakage mechanism 16 .

[0032] Furthermore, the connection anti-leakage ring 7 and the connection anti-leakage groove 5 are arranged at corresponding positions, and the outer diameters of the two are equal.

[0033] Furthermore, the first movable extrusion block 1603 and the arc-shaped extrusion groove 1602 are arranged at corresponding positions and have the same number of groups.

[0034] Furthermore, the enhanced connection anti-leakage mechanism 16 includes a movable collar 1601, an arc-shaped extrusion groove 1602, a first movable extrusion block 1603, a second movable extrusion block 1604, a transmission block 1605, a limit block 1606, a first movable plug-in block 1607, a second movable plug-in block 1608, a third movable extrusion block 1609, a fourth movable extrusion block 1610, an active groove 1611, and a connection strengthening block 1612. The movable collar 1601 is sleeved on the first connection fixing ring 3, and locks are symmetrically arranged at both ends of the movable collar 1601. The outer wall of the movable collar 1601 is symmetrically welded with a second rotating protrusion, and the movable collar 1601 is equidistantly provided with an arc extrusion groove 1602. The first movable extrusion block 1603 is symmetrically movably arranged in the first connecting fixed ring 3, and one end of the first movable extrusion block 1603 is provided with a second movable extrusion block 1604, and the second movable extrusion block 1604 is provided with a second return spring at the same end as the first movable extrusion block 1603, and the other end of the first movable extrusion block 1603 is movably arranged in the arc extrusion groove 1602 The transmission block 1605 is movably arranged in the movable ring 1601, and a first slope is arranged at one end of the transmission block 1605, and limit blocks 1606 are symmetrically arranged on both sides of the transmission block 1605, and a third return spring is connected to the limit blocks 1606, and a first movable plug-in block 1607 is movably arranged at the other end of the transmission block 1605, and a second slope is arranged at one end of the first movable plug-in block 1607, and a second movable plug-in block 1608 is arranged at the other end, and the second movable plug-in block 1608 is provided with a fourth return spring at the same end as the first movable plug-in block 1607. Spring, the third movable extrusion block 1609 is symmetrically and movably arranged in the second connecting fixed ring 4, and a fourth movable extrusion block 1610 is arranged at one end of the third movable extrusion block 1609, the third movable extrusion block 1609 is provided with a fifth return spring at the same end as the fourth movable extrusion block 1610, and a movable groove 1611 is arranged on the side of the third movable extrusion block 1609, the connection reinforcement block 1612 is movably arranged on the side of the movable groove 1611, and a third slope is arranged at one end of the connection reinforcement block 1612 and an extrusion spring is arranged at the other end.

[0035] Furthermore, the third movable extrusion block 1609 and the second movable plug block 1608 are arranged in corresponding positions and in the same number of groups, and the cross-sectional shape of the end of the third movable extrusion block 1609 is the same as the cross-sectional shape of the end of the second movable plug block 1608, that is, the lengths and widths of the cross sections of the two are equal.

[0036] Working principle: When the discharge pipe 1 of the discharge pump is connected to the delivery pipe 2 of the present invention, the first connection fixing ring 3 at the connection end of the discharge pipe 1 of the discharge pump is firstly connected to the second connection fixing ring 4 at the connection end of the delivery pipe 2. In this process, the connection anti-leakage ring 7 arranged on the delivery pipe 2 is inserted into the connection anti-leakage groove 5 in the discharge pipe 1 of the discharge pump, and the rubber sealing ring 6 is inserted into the connection sealing groove 8. Then, the movable collar 1601 is rotated by the second rotating protrusion. As the movable collar 1601 rotates, the arc-shaped extrusion groove 1602 arranged in the movable collar 1601 squeezes the first movable extrusion block 1603, and the first movable extrusion block 1603 pushes the second movable extrusion block 1604 to the first connection block 1604. The rubber sealing ring 6 in the fixing ring 3 is compressed, and when the first movable extrusion block 1603 reaches the position of the transmission block 1605, under the action of the first slope, the first movable extrusion block 1603 squeezes the transmission block 1605, and the transmission block 1605 then squeezes the first movable plug block 1607 at the other end thereof, and the first movable plug block 1607 then pushes the second movable plug block 1608 to squeeze the third movable extrusion block 1609 arranged in the second connection fixing ring 4. In this process, the third movable extrusion block 1609 squeezes the connection strengthening block 1612, so that the extrusion spring connected to the connection strengthening block 1612 is in an extruded state, thereby making the connection strength of the first connection fixing ring 3 and the second connection fixing ring 4 The degree of improvement is then increased, and the internal threaded ring 10 is then rotated so that the internal threaded ring 10 squeezes the second active extrusion column 14, and then the second active extrusion column 14 pushes the first active extrusion column 13 to be clamped in the locking circular groove 15, and finally the locking screw is tightened so that the locking screw is clamped in the fixed circular groove 11. The present invention has a good strengthening effect on the strength and leakage prevention of the connection between the discharge pipe 1 of the discharge pump and the conveying pipeline 2 by strengthening the linkage mechanism of the connection leakage prevention mechanism 16, thereby ensuring the safety of the unloading work. Therefore, for the unloading work of styrene, the connection between the discharge pump and the conveying pipeline 2 is more firmly connected through the present invention, and has a good leakage prevention function. By setting the connection leakage prevention groove 5, the rubber sealing ring 6, and the connection leakage prevention mechanism 16, the connection leakage prevention mechanism 16 are provided. The leakage ring 7 and the connection sealing groove 8 enable double-layer sealing and leakage prevention to be performed when the unloading operation is performed by the unloading pump, thereby providing a sealed and leakage prevention environment for the unloading operation. Through the enhanced connection and leakage prevention mechanism 16 provided in the present invention, on the one hand, the second movable extrusion block 1604 and the fourth movable extrusion block 1610 are respectively used to squeeze the two ends of the rubber sealing ring 6, thereby achieving an enhanced connection sealing and leakage prevention effect. On the other hand, through the provided movable sleeve 1601 and the connection strengthening block 1612, the connection strength between the first connection fixing ring 3 and the second connection fixing ring 4 can be strengthened, thereby improving the connection strength between the unloading pump output pipe 1 and the conveying pipeline 2, thereby improving the overall safety of the unloading operation and avoiding the occurrence of safety accidents.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A styrene loading and unloading station unloading device, characterized in that: It comprises a discharge pump output pipe (1), a delivery pipeline (2), a first connection fixing ring (3), a second connection fixing ring (4) and a strengthening connection anti-leakage mechanism (16); The outer side wall of the connection end of the discharge pump output pipe (1) is provided with a first connection fixing ring (3), the outer side wall of the connection end of the delivery pipe (2) is provided with a second connection fixing ring (4), and the first connection fixing ring (3) is provided with a connection anti-leakage groove (5) and an annular groove, a rubber sealing ring (6) is movably provided in the annular groove, one end of the rubber sealing ring (6) is equidistantly provided with a connection spring, and the other end of the connection spring is connected and provided in the annular groove; The second connecting fixing ring (4) is provided with a connecting anti-leakage ring (7) and a connecting sealing groove (8), and the side positions of the first connecting fixing ring (3) and the second connecting fixing ring (4) are both provided with a third fixing ring (9), one end of the third fixing ring (9) is integrally formed with a circular ring protrusion, the circular ring protrusion is provided with threaded holes at equal intervals, a locking screw is threadedly connected in the threaded hole, and the third fixing ring (9) is provided with a connecting thread, the third fixing ring (9) is threadedly provided with an internal threaded collar (10), the outer side wall of the internal threaded collar (10) is provided with first rotating protrusions at equal intervals, and one side of the internal threaded collar (10) is provided with a fixing circular groove (11) at equal intervals; the other end of the third fixing ring (9) is also provided with a fourth fixing ring (12); The fourth fixing ring (12) is integrally formed and arranged at one end of the third fixing ring (9); a first movable extrusion column (13) is equidistantly and movably arranged in the fourth fixing ring (12); a second movable extrusion column (14) is integrally formed and arranged at one end of the first movable extrusion column (13); and a first return spring is integrally formed and connected to the same end of the second movable extrusion column (14) as the first movable extrusion column (13); and the other end of the first return spring is arranged in the fourth fixing ring (12); The first movable extrusion column (13) is provided with a locking circular groove (15) in a clamping connection, and the locking circular groove (15) is symmetrically arranged on the strengthening connection anti-leakage mechanism (16); The reinforced connection anti-leakage mechanism (16) comprises a movable collar (1601), an arc-shaped extrusion groove (1602), a first movable extrusion block (1603), a second movable extrusion block (1604), a transmission block (1605), a limit block (1606), a first movable plug-in block (1607), a second movable plug-in block (1608), a third movable extrusion block (1609), a fourth movable extrusion block (1610), a movable groove (1611), and a connection reinforcement block (1612); the movable collar (1601) is sleeved on the first connection fixing ring (3), and two ends of the movable collar (1601) are symmetrically provided with The movable collar (1601) is provided with a locking circular groove (15), and a second rotating protrusion is symmetrically welded on the outer wall of the movable collar (1601), and arc-shaped extrusion grooves (1602) are equidistantly arranged in the movable collar (1601), and the first movable extrusion block (1603) is symmetrically and movably arranged in the first connecting fixed ring (3), and a second movable extrusion block (1604) is arranged at one end of the first movable extrusion block (1603), and the second movable extrusion block (1604) is provided with a second return spring at the same end as the first movable extrusion block (1603), and the other end of the first movable extrusion block (1603) is movably arranged in the arc-shaped extrusion groove (1602), The transmission block (1605) is movably arranged in the movable ring (1601), and a first slope is arranged at one end of the transmission block (1605), and limit blocks (1606) are symmetrically arranged on both sides of the transmission block (1605), and a third return spring is connected to the limit blocks (1606), and the first movable plug block (1607) is movably arranged at the other end of the transmission block (1605), and a second slope is arranged at one end of the first movable plug block (1607) and a second movable plug block (1608) is arranged at the other end, and the second movable plug block (1608) is provided with a fourth spring at the same end as the first movable plug block (1607). A return spring, the third movable extrusion block (1609) is symmetrically and movably arranged in the second connecting fixed ring (4), and a fourth movable extrusion block (1610) is arranged at one end of the third movable extrusion block (1609), the third movable extrusion block (1609) is provided with a fifth return spring at the same end as the fourth movable extrusion block (1610), and a movable groove (1611) is arranged on the side of the third movable extrusion block (1609), the connection reinforcement block (1612) is movably arranged on the side of the movable groove (1611), and a third slope is arranged at one end of the connection reinforcement block (1612) and a compression spring is arranged at the other end.

2. A styrene loading and unloading station unloading device according to claim 1, characterized in that: The connection anti-leakage ring (7) and the connection anti-leakage groove (5) are arranged at corresponding positions, and their outer diameters are equal.

3. A styrene loading and unloading station unloading device according to claim 1, characterized in that: The first movable extrusion block (1603) and the arc-shaped extrusion groove (1602) are arranged at corresponding positions and have the same number of groups.

4. A styrene loading and unloading station unloading device according to claim 1, characterized in that: The third movable extrusion block (1609) and the second movable plug block (1608) are arranged in corresponding positions and have the same number of groups, and the cross-sectional shape of the end of the third movable extrusion block (1609) is the same as the cross-sectional shape of the end of the second movable plug block (1608), that is, the lengths and widths of the cross sections of the two are equal.

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