Anti-overflow warning device for asphalt tank of asphalt mixing station

Abstract

The utility model provides an asphalt mixing station asphalt tank anti-overflow warning device, which comprises an anti-overflow mechanism and a warning mechanism, the anti-overflow mechanism and the warning mechanism are arranged at the top of the asphalt tank, the top of the asphalt tank is also provided with an asphalt tank inspection port, and the asphalt tank inspection port is connected with the anti-overflow mechanism and the warning mechanism. The anti-overflow mechanism comprises a proximity switch support arranged at the top of the asphalt tank, a proximity switch is connected to the top of the proximity switch support, a guide rod is arranged at the center of the bottom of the proximity switch, and a floating ball ejector rod is arranged on the outer side of the guide rod in a sleeving mode. Compared with the prior art, the anti-overflow warning device has the following beneficial effects that through the design of the anti-overflow mechanism and the warning mechanism, the real-time control and warning of the liquid level of the asphalt tank can be realized, the occurrence of overflow accidents of the asphalt tank is effectively avoided, the safety risk is reduced, the safety guarantee is improved, and the waste of asphalt resources is completely avoided; and the material cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of asphalt mixing station asphalt tank anti-overflow material warning device, belong to asphalt processing warning device field. BACKGROUND

[0002] Asphalt mixing station asphalt tank is a kind of asphalt storage heating device, asphalt tank bottom is equipped with asphalt import and export, for the asphalt loading and unloading and use.

[0003] When asphalt mixing station is normal production, the asphalt temperature in asphalt tank needs to be maintained between 150℃-190℃, to ensure that asphalt is in liquid state, for the measurement and use of asphalt. The asphalt in asphalt tank comes from two parts, one part is filled into tank by unloading pump, and the other part is returned to tank by asphalt metering pump during production, which can also be returned to other tank by adjusting valve.

[0004] Because the project construction duration is long during dry period, even at night. Workers are tired after long time work, seriously affected by night lighting, temperature and other bad environment and physical condition, it is easy to cause work negligence, which will inevitably lead to asphalt overflow accident. When asphalt is in high temperature state, if tank full overflow accident occurs, it may cause equipment contamination, property loss, even personnel casualty. Therefore, when producing or loading and unloading asphalt, asphalt liquid level state should be paid attention to, to ensure production safety.

[0005] At present, the industry generally focuses on asphalt tank liquid level monitoring technology, but new asphalt tank liquid level monitoring technology is not mature enough, which can monitor liquid level to some extent, but the accuracy is not enough, so it is still necessary to prevent tank full overflow risk. For example, ultrasonic ranging technology, radar ranging technology and pressure transmitter monitoring technology, ultrasonic propagation speed is easily affected by asphalt high temperature steam, radar ranging sensor and pressure sensor are easily affected by asphalt high temperature aging, with poor stability and high maintenance cost, which cannot meet the actual production demand and has not been effectively popularized and used.

[0006] Now commonly used liquid level monitoring technology is still artificial method to judge liquid level by monitoring float, which needs experienced workers to observe float state and climb asphalt tank frequently, to ensure that asphalt does not overflow during filling and use, which is most affected by human factors. Moreover, for the equipment used for more than three years, asphalt liquid level detection device may have failed, and there is no corresponding technical measure to popularize for asphalt tank full overflow safety hazard except strengthening artificial patrol. This device can automatically stop unloading pump when asphalt tank is full, and send warning to remind workers, check pipeline valve and asphalt metering pump working state in time, which can effectively make up the safety defect of asphalt overflow, reduce safety risk, improve production safety guarantee, save resources, protect environment and improve production efficiency. The utility model discloses a content

[0007] In view of the deficiencies of the prior art, the utility model aims at providing a kind of asphalt tank of asphalt mixing station overflow material warning device.

[0008] To achieve the above object, the utility model is through the following technical scheme to realize:

[0009] A kind of asphalt tank of asphalt mixing station overflow material warning device, including anti-overflow mechanism and warning mechanism, the anti-overflow mechanism and the warning mechanism are both arranged at the top of the asphalt tank, the top of the asphalt tank is also provided with asphalt tank inspection hole, the anti-overflow mechanism includes the proximity switch support being arranged at the top of the asphalt tank, the top of the proximity switch support is connected with proximity switch, the bottom center of the proximity switch is equipped with guide rod, the outer side of the guide rod is equipped with float ball top rod, the bottom end of the float ball top rod is movably penetrated to the inside of the asphalt tank and is connected with hollow float ball, one end of the float ball top rod located in the proximity switch support is connected with limit board, the limit board is matched with the proximity switch support.

[0010] Further, the warning mechanism includes the bottom shell being arranged at the top of the asphalt tank and located at the outer side of the anti-overflow mechanism, the top of the bottom shell is connected with top shell, the circumferential outer surface of the bottom shell is uniformly provided with a plurality of receiving grooves, the side of the receiving groove is communicated with arc movable slot, the inside of the receiving groove is linearly slidably connected with sliding plate, the outer surface of the sliding plate is connected with damping spring between one side and the inner wall of the receiving groove, the outer surface of the sliding plate is equipped with warning light in the middle of the other side, the warning light is matched with the opening of the receiving groove, the both sides of the warning light are respectively equipped with one inclined surface guard plate.

[0011] Further, the inside of the top shell is provided with rotary groove, the side edge bottom of the rotary groove is uniformly provided with a plurality of arc-shaped through holes matched with the arc movable slot and the receiving groove, the inside of the rotary groove is rotatably connected with rotary ring, the bottom edge of the rotary ring is uniformly provided with a plurality of arc-shaped protective plates, the bottom end of the arc-shaped protective plate is penetrated to the arc movable slot through the arc-shaped through hole, and the end of the arc-shaped protective plate is penetrated to the receiving groove and is pressed together with the inclined surface guard plate.

[0012] Further, the inside of the top shell is provided with electric appliance box, the inside of the electric appliance box is provided with arc-shaped opening penetrating to the inside of the rotary groove, one side of the inside of the electric appliance box is provided with motor, the top output end of the motor is connected with driving gear, and the end of the driving gear is penetrated to the rotary groove through the arc-shaped opening and is engaged with the internal tooth arc slot provided on the inner wall of the rotary ring.

[0013] Further, the proximity switch support comprises a support cylinder and a plurality of support rods, the support cylinder is fixed on the top of the asphalt tank, the plurality of support rods are fixed on the top of the support cylinder, and the proximity switch is fixed on the top of the support rods.

[0014] Further, a sliding space is formed between two adjacent support rods, and the corner of the limiting plate is vertically and slidingly connected in the sliding space.

[0015] Further, the limiting plate and the floating ball top rod are both provided with a through hole matched with the guide rod.

[0016] The present application has the following beneficial effects:

[0017] The present application can eliminate the safety hazard of asphalt tank overflow during production, ensure that no safety accidents caused by asphalt overflow occur during equipment operation, ensure the safety of production equipment and personal safety, protect the environment, save resources, reduce asphalt waste and cleaning costs.

[0018] The present application can realize real-time control and warning of the liquid level of the asphalt tank, effectively prevent the asphalt tank from overflowing, reduce the safety risk, improve the safety guarantee, completely eliminate the waste of asphalt resources, and save material costs.

[0019] When the liquid level of the asphalt in the asphalt tank rises and falls, the hollow floating ball rises and falls, drives the floating ball top rod to move up and down along the proximity switch support and the guide rod, realizes real-time control of the liquid level of the asphalt tank, and when the limiting plate at the top of the floating ball top rod is within 10mm below the proximity switch sensing probe, the proximity switch signal is output, and the warning mechanism is started.

[0020] When the proximity switch is triggered, the motor drives the driving gear to rotate, the end of the driving gear penetrates into the rotating groove through the arc-shaped opening and is engaged with the inner tooth arc groove, thereby driving the rotating ring to rotate, the rotating ring drives the plurality of arc-shaped protective plates at the bottom to rotate, the arc-shaped protective plates rotate in the arc-shaped through hole, and the bottom end is simultaneously rotated from the storage groove into the arc-shaped movable groove, thereby under the action of the damping spring, the sliding plate pushes the warning light and the inclined protective plate to move to the opening of the storage groove, and warning work can be carried out. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0022] Figure 1 It is the total structure schematic view of the asphalt tank anti-overflow material indicating alarm device of the asphalt mixing station of the utility model;

[0023] Figure 2 It is the local structure schematic view of the asphalt tank anti-overflow material indicating alarm device of the asphalt mixing station of the utility model;

[0024] Figure 3 It is the anti-overflow mechanism structure schematic view of the asphalt tank anti-overflow material indicating alarm device of the asphalt mixing station of the utility model;

[0025] Figure 4 It is the anti-overflow mechanism local structure schematic view of the asphalt tank anti-overflow material indicating alarm device of the asphalt mixing station of the utility model Figure 1 ;

[0026] Figure 5 It is the anti-overflow mechanism local structure schematic view of the asphalt tank anti-overflow material indicating alarm device of the asphalt mixing station of the utility model Figure 2 ;

[0027] Figure 6 It is the indicating alarm mechanism local structure schematic view of the asphalt tank anti-overflow material indicating alarm device of the asphalt mixing station of the utility model Figure 1 ;

[0028] Figure 7 It is the indicating alarm mechanism local structure schematic view of the asphalt tank anti-overflow material indicating alarm device of the asphalt mixing station of the utility model Figure 2 ;

[0029] Figure 8 It is the rotating ring, inner tooth arc groove and arc-shaped protection plate three connecting structure schematic view of the asphalt tank anti-overflow material indicating alarm device of the asphalt mixing station of the utility model;

[0030] Figure 9 It is the top shell structure schematic view of the asphalt tank anti-overflow material indicating alarm device of the asphalt mixing station of the utility model;

[0031] Figure 10 It is the electric appliance box and motor connecting structure schematic view of the asphalt tank anti-overflow material indicating alarm device of the asphalt mixing station of the utility model.

[0032] In the figure, 1, asphalt tank; 2, asphalt tank inspection hole; 3, proximity switch support; 4, proximity switch; 5, guide rod; 6, limit plate; 7, float rod; 8, hollow float ball; 9, bottom shell; 10, top shell; 11, storage groove; 12, arc movable groove; 13, sliding plate; 14, damping spring; 15, warning light; 16, inclined surface guard plate; 17, rotary groove; 18, arc-shaped through hole; 19, arc-shaped opening; 20, electrical box; 21, motor; 22, driving gear; 23, rotating ring; 24, inner tooth arc groove; 25, arc-shaped guard plate. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0034] Please refer to Figures 1-10 The utility model provides a kind of asphalt mixing station asphalt tank overflow material warning device technical scheme, including anti-overflow mechanism and warning mechanism, the anti-overflow mechanism and the warning mechanism are set in the top of the asphalt tank 1, the top of the asphalt tank 1 is also provided with asphalt tank inspection hole 2, the anti-overflow mechanism includes the proximity switch support 3 being set in the top of the asphalt tank 1, the top of the proximity switch support 3 is connected with proximity switch 4, the bottom center of proximity switch 4 is equipped with guide rod 5, the outer side of guide rod 5 is equipped with float rod 7, the bottom end of float rod 7 is movably penetrated to the inside of asphalt tank 1 and is connected with hollow float ball 8, one end of float rod 7 located in the inside of proximity switch support 3 is connected with limit plate 6, the limit plate 6 is compatible with the proximity switch support 3, the limit plate 6 and the float rod 7 are both equipped with the perforation matched with the guide rod 5;By the design of anti-overflow mechanism, when the asphalt liquid level in asphalt tank 1 rises and falls, hollow float ball 8 will rise and fall along with it, drive float rod 7 to move up and down along proximity switch support 3 and guide rod 5, to realize the real-time control to asphalt tank liquid level, when limit plate 6 on the top of float rod 7 is close to proximity switch 4 inductive probe within 10mm, proximity switch 4 signal output, start warning mechanism.

[0035] Please refer to Figures 1-5The warning mechanism comprises a bottom shell 9 arranged on the top of the asphalt tank 1 and outside the anti-overflow mechanism, a top shell 10 connected to the top of the bottom shell 9, a plurality of receiving grooves 11 uniformly arranged on the circumferential outer surface of the bottom shell 9, an arc-shaped movable groove 12 communicated with the side edge of the receiving groove 11, a sliding plate 13 linearly and slidably connected inside the receiving groove 11, a damping spring 14 connected between the outer surface of the sliding plate 13 and the inner wall of the receiving groove 11, a warning light 15 arranged on the other side of the outer surface of the sliding plate 13, the warning light 15 being matched with the opening of the receiving groove 11, and a slope guard plate 16 arranged on the two sides of the warning light 15, a rotating groove 17 arranged inside the top shell 10, a plurality of arc-shaped through holes 18 uniformly arranged on the bottom edge of the side edge of the rotating groove 17 and matched with the arc-shaped movable groove 12 and the receiving groove 11, a rotating ring 23 rotatably connected inside the rotating groove 17, a plurality of arc-shaped guard plates 25 uniformly arranged on the bottom edge of the rotating ring 23, the arc-shaped guard plates 25 penetrating into the arc-shaped movable groove 12 through the arc-shaped through holes 18, and the arc-shaped guard plates 25 penetrating into the receiving groove 11 and being pressed together with the slope guard plate 16, an electric appliance box 20 arranged on the inner side of the top shell 10, an arc-shaped opening 19 arranged inside the electric appliance box 20 and penetrating into the rotating groove 17, a motor 21 arranged on one side inside the electric appliance box 20, a driving gear 22 connected to the top output end of the motor 21, and an inner tooth arc groove 24 arranged on the inner wall of the rotating ring 23 and engaged with the end of the driving gear 22 penetrating into the rotating groove 17 through the arc-shaped opening 19. When the alarm is removed, the motor 21 drives the driving gear 22 to rotate reversely, the end of the driving gear 22 penetrates into the rotating groove 17 through the arc-shaped opening 19 and is engaged with the inner tooth arc groove 24, thereby driving the rotating ring 23 to rotate reversely, the rotating ring 23 drives the plurality of arc-shaped guard plates 25 on the bottom to rotate reversely, the arc-shaped guard plates 25 rotate reversely in the arc-shaped through holes 18, the bottom end of the arc-shaped guard plates 25 rotates into the receiving groove 11 from the arc-shaped movable groove 12 at the same time, thereby pushing the slope guard plate 16 and the warning light 15 to move and be stored in the receiving groove 11, and the opening of the receiving groove 11 is shielded, so that the warning light 15 is protected.

[0036] Referring to Figure 4 The proximity switch support 3 comprises a support cylinder and a plurality of support rods, the support cylinder is fixed on the top of the asphalt tank 1, the plurality of support rods are fixed on the top of the support cylinder, and the proximity switch 4 is fixed on the top of the support rods. Through the design of the support cylinder and the support rods, the proximity switch 4 can be supported and matched with the sliding limiting of the limiting plate 6 at the same time.

[0037] Referring to Figure 3The sliding space is formed between two adjacent supporting rods, and the corner of the limiting plate 6 is vertically and slidingly connected in the sliding space.

[0038] In use, when the liquid level of asphalt in the asphalt tank 1 rises and falls, the hollow floating ball 8 will rise and fall, driving the floating ball top rod 7 to move up and down along the proximity switch bracket 3 and the guide rod 5, thereby realizing real-time control of the liquid level of the asphalt tank. Taking an asphalt tank as an example, according to different sources of asphalt in the tank, i.e. loading and unloading into the tank by the loading and unloading pump and asphalt backflow into the tank, the staff can focus on checking the corresponding parts. When loading and unloading asphalt, the loading and unloading pump is working, and the worker normally observes the state of the float. When the asphalt is about 60 cm from the top, the hollow floating ball 8 is subjected to the buoyancy of the asphalt, pushing the floating ball top rod 7 to rise. When the limiting plate 6 at the top of the floating ball top rod 7 is within 10 mm below the sensing probe of the proximity switch 4, the proximity switch 4 outputs a signal to start the warning mechanism.

[0039] When the proximity switch 4 is triggered, the motor 21 drives the drive gear 22 to rotate, the end of the drive gear 22 penetrates into the rotating groove 17 through the arc-shaped opening 19 and engages with the inner tooth arc groove 24, thereby driving the rotating ring 23 to rotate, the rotating ring 23 drives the plurality of arc-shaped protective plates 25 at the bottom to rotate, while the arc-shaped protective plates 25 rotate in the arc-shaped through hole 18, the bottom end is simultaneously rotated from the storage groove 11 into the arc-shaped movable groove 12, and then under the action of the damping spring 14, the sliding plate 13 pushes the warning light 15 and the inclined protective plate 16 to move to the opening of the storage groove 11, thereby the warning work can be carried out. When the alarm is released, the motor 21 drives the drive gear 22 to rotate in the opposite direction, the end of the drive gear 22 penetrates into the rotating groove 17 through the arc-shaped opening 19 and engages with the inner tooth arc groove 24, thereby driving the rotating ring 23 to rotate in the opposite direction, the rotating ring 23 drives the plurality of arc-shaped protective plates 25 at the bottom to rotate in the opposite direction, while the arc-shaped protective plates 25 rotate in the arc-shaped through hole 18, the bottom end is simultaneously rotated from the arc-shaped movable groove 12 into the storage groove 11, and then the end part extrudes the inclined surface of the inclined protective plate 16, thereby pushing the inclined protective plate 16 and the warning light 15 to move and be stored in the storage groove 11, while shielding the opening of the storage groove 11, realizing the protection of the warning light 15.

[0040] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A device for indicating an asphalt spill in an asphalt tank of an asphalt mixing plant, characterized in that The utility model provides an asphalt tank with anti-overflow and warning mechanism, which comprises an asphalt tank (1), an anti-overflow mechanism and a warning mechanism.

2. The asphalt spill-preventing warning device for an asphalt tank of an asphalt mixing plant according to claim 1, characterized in that The anti-overflow mechanism comprises a proximity switch bracket (3) arranged on the top of the asphalt tank (1), a proximity switch (4) connected to the top of the proximity switch bracket (3), a guide rod (5) arranged at the bottom center of the proximity switch (4), a floating ball top rod (7) sleeved on the outer side of the guide rod (5), a hollow floating ball (8) connected to the bottom end of the floating ball top rod (7) and arranged in the asphalt tank (1), and a limiting plate (6) connected to one end of the floating ball top rod (7) in the proximity switch bracket (3).

3. The asphalt spill prevention and warning system for an asphalt tank at an asphalt plant as defined by Claim 2, wherein, The warning mechanism comprises a bottom shell (9) arranged on the top of the asphalt tank (1) and located outside the anti-overflow mechanism, a top shell (10) connected to the top of the bottom shell (9), a plurality of receiving grooves (11) uniformly arranged on the circumferential outer surface of the bottom shell (9), an arc-shaped movable groove (12) communicated with the side of each receiving groove (11), a sliding plate (13) linearly and slidably connected in each receiving groove (11), a damping spring (14) connected between the outer surface of the sliding plate (13) and the inner wall of the receiving groove (11), a warning light (15) arranged on the other side of the outer surface of the sliding plate (13) and in the middle of the bottom shell (9), and a slope guard plate (16) arranged on the other side of the warning light (15).

4. The asphalt spill-prevention warning device for an asphalt tank of an asphalt mixing plant according to claim 3, characterized in that The top shell (10) is internally provided with a rotating groove (17), a plurality of arc-shaped through holes (18) are uniformly arranged on the bottom of the outer edge of the side of the rotating groove (17) and are matched with the arc-shaped movable groove (12) and the receiving groove (11), a rotating ring (23) is rotatably connected in the rotating groove (17), a plurality of arc-shaped protection plates (25) are uniformly arranged on the bottom of the outer edge of the rotating ring (23), the bottom end of each arc-shaped protection plate (25) penetrates into the arc-shaped movable groove (12) through the arc-shaped through hole (18), and the end of each arc-shaped protection plate (25) penetrates into the receiving groove (11) and is pressed together with the slope guard plate (16). The inside of the top shell (10) is provided with an electrical box (20), the electrical box (20) is internally provided with an arc-shaped opening (19) penetrating into the rotating groove (17), one side of the electrical box (20) is provided with a motor (21), the top output end of the motor (21) is connected with a driving gear (22), and the end of the driving gear (22) penetrates into the rotating groove (17) through the arc-shaped opening (19) and is engaged with an internal toothed arc groove (24) arranged on the inner wall of the rotating ring (23).

5. The asphalt spill prevention and warning system for an asphalt tank at an asphalt plant as defined in claim 4, wherein, The proximity switch support (3) comprises a support cylinder and a plurality of support rods, the support cylinder is fixed on the top of the asphalt tank (1), the plurality of support rods are fixed on the top of the support cylinder, and the proximity switch (4) is fixed on the top of the support rods.

6. The asphalt spill prevention and warning system for an asphalt tank at an asphalt paving plant as defined in claim 5, wherein, A sliding space is formed between two adjacent support rods, and the corners of the limiting plate (6) are vertically and slidingly connected in the sliding space.

7. The asphalt spill-prevention warning device for an asphalt-paving-mixing-station asphalt tank of claim 6, wherein, Perforations matched with the guide rods (5) are formed on the limiting plate (6) and the floating ball top rod (7).

Images