Asphalt spill-proof rapid secondary accurate weighing hopper
By designing an asphalt spill-proof, rapid, and precise secondary weighing hopper, and utilizing a vent pipe and a reflux mechanism to achieve secondary weighing of asphalt, the problems of hopper overflow and accuracy are solved, improving the convenience and stability of weighing.
Patent Information
- Application Number
- CN202422116283.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-08-30
AI Technical Summary
Existing asphalt weighing hoppers are prone to overflow during use, affecting the equipment environment and normal operation, and making it difficult to achieve accurate weighing.
A rapid secondary accurate asphalt weighing hopper with spill prevention was designed. Excess asphalt is diverted to the second weighing hopper through a vent pipe. The secondary weighing of asphalt is achieved by using a cylinder to drive a sealing door and a return mechanism. The asphalt quantity is precisely controlled by a weighing sensor.
It effectively avoids asphalt overflow, improves the convenience and accuracy of weighing, reduces equipment impact, and ensures the stability of the weighing process and environmental protection.
Smart Images
Figure CN223783726U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of asphalt weighing technology, and in particular to an asphalt spill prevention rapid secondary accurate weighing hopper. Background Technology
[0002] Asphalt is a liquid or semi-solid material separated during the petroleum refining process. Due to its excellent adhesion, waterproofing and anti-oxidation properties, asphalt is widely used in road construction, roof waterproofing, bridge protection and anti-corrosion coatings. Especially in road construction, asphalt is used as the main binder and is mixed with mineral aggregates to form asphalt mixtures, which are used to pave various types of road surfaces to ensure that the roads have good durability, stability and crack resistance.
[0003] In the application of asphalt, deviations in the amount of asphalt used directly affect the quality of the final product and the construction effect. In road paving, the accuracy of the amount of asphalt used affects the thickness, strength and service life of the pavement. If the amount of asphalt used is insufficient, the pavement may be not durable and prone to cracking. Conversely, too much asphalt will increase the project cost and may cause problems such as surface oil seepage, affecting the pavement performance. Therefore, it is necessary to accurately weigh the amount used.
[0004] In existing secondary precision weighing hoppers, asphalt has adhesive properties, so when weighing, the asphalt overflows from the hopper and spills onto the equipment, affecting the environment and the appearance of the equipment, and also affecting the normal operation of the equipment. To address these issues, a rapid secondary precision weighing hopper with asphalt spill prevention is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a rapid secondary precision asphalt weighing hopper to prevent asphalt overflow. It aims to improve the problem in the prior art where asphalt overflows from the weighing hopper and spills onto the equipment, affecting the environment and the appearance of the equipment, and also affecting the normal operation of the equipment.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a rapid secondary precision asphalt spill prevention weighing hopper, comprising:
[0007] The bracket serves as a basic installation component;
[0008] Supply component; it is located above the support and connected to the asphalt delivery pump for supplying asphalt;
[0009] Weighing hopper one, with weighing hopper two below it, both of which are movably connected to the support frame to receive the asphalt discharged from the supply component;
[0010] The weighing assembly, located on the bottom surface at the edges of weighing hopper one and weighing hopper two, is used to detect the weight of the hoppers after they are pressed down with asphalt.
[0011] Ventilation pipe, which is communicated with the weighing hopper, is used to drain excess asphalt to the second weighing hopper when the asphalt in the first weighing hopper is excessive;
[0012] Discharge mechanism, which is located in the first weighing hopper, is used to form a passage for the asphalt to transfer to the second weighing hopper;
[0013] Backflow mechanism, which is communicated with the second weighing hopper, is used to guide the asphalt to discharge from the second weighing hopper when the weighing fails.
[0014] As a further description of the above technical solutions:
[0015] The supply assembly includes a storage bin, which is communicated with the upper discharge pipe, the lower discharge pipe and the feeding pipe, respectively.
[0016] As a further description of the above technical solutions:
[0017] The upper discharge pipe is communicated with the upper feeding pipe, the upper feeding pipe is communicated with the first weighing hopper, the lower discharge pipe is communicated with the lower feeding pipe, the lower feeding pipe is communicated with the second weighing hopper, the feeding pipe is communicated with the asphalt conveying pump, a first valve is arranged between the upper discharge pipe and the upper feeding pipe, and a second valve is arranged between the lower discharge pipe and the storage bin.
[0018] As a further description of the above technical solutions:
[0019] The discharge mechanism includes a cylinder, the output end of the cylinder is provided with a push rod, the bottom of the push rod is provided with a sealing door, and the outer wall of the push rod is provided with a spring.
[0020] As a further description of the above technical solutions:
[0021] The first weighing hopper is fixedly provided with a second mounting bracket, the cylinder is connected with the second mounting bracket, and the cylinder is located above the first weighing hopper.
[0022] As a further description of the above technical solutions:
[0023] The first weighing hopper is fixedly provided with a second mounting bracket, the cylinder is connected with the second mounting bracket, and the cylinder is located above the first weighing hopper.
[0024] As a further description of the above technical solutions:
[0025] The second weighing hopper is provided with a discharging pipe, the inside of the discharging pipe is provided with a discharging valve, the outer wall of the second weighing hopper is provided with an oil supply pipe for supplying heat-conducting oil into the second weighing hopper, the bottom of the lower discharging pipe is provided with an adding pipe, and the middle of the adding pipe is provided with a fourth valve.
[0026] As a further description of the above technical solution:
[0027] The backflow mechanism comprises a material spraying pipe, one end of the material spraying pipe is located at the inner bottom of the second weighing hopper, and the other end of the material spraying pipe is provided with a third valve.
[0028] The utility model has the advantages of:
[0029] 1. In the utility model, the air pipe is arranged on the first weighing hopper, so that the air in the first weighing hopper can be guided and discharged after the asphalt enters the first weighing hopper, and when too much asphalt enters the first weighing hopper, the air pipe can serve as an overflow pipe to automatically overflow the excess asphalt into the second weighing hopper, thereby avoiding the overflow of the asphalt onto the equipment and affecting the environment and the appearance of the equipment.
[0030] 2. In the utility model, the driving cylinder can push the push rod and drive the sealing door to move away from the bottom of the first weighing hopper, so that a passage is formed at the bottom of the first weighing hopper, and the asphalt can enter the second weighing hopper, thereby reducing the amount of asphalt entering the air pipe and avoiding the blockage of the air pipe.
[0031] 3. When too much asphalt enters the first weighing hopper, the air pipe and the sealing door can make the asphalt finally enter the second weighing hopper, at this time, the third valve can be opened, the first valve and the second valve can be closed, and the asphalt pump can be reversed, so that the asphalt in the second weighing hopper returns along the material spraying pipe, the third valve, the first valve, the upper discharging pipe, the material bin and the material supply pipe in turn, and finally the third valve is closed, the first valve is opened, and the asphalt pump is rotated in the normal direction, so that the asphalt reenters the first weighing hopper for weighing, thereby greatly improving the convenience of asphalt weighing. BRIEF DESCRIPTION OF DRAWINGS
[0032] Figure 1 The utility model provides a kind of asphalt anti-overflow quick secondary accurate weighing hopper's front view of section;
[0033] Figure 2 The utility model provides a kind of asphalt anti-overflow quick secondary accurate weighing hopper's support front view;
[0034] Figure 3 The utility model provides a kind of asphalt anti-overflow quick secondary accurate weighing hopper's push rod partial structure schematic view;
[0035] Figure 4 A sealing door part structure schematic view of the asphalt anti-overflow quick secondary accurate weighing hopper is provided in the utility model.
[0036] Figure 5 An asphalt pump-in weighing hopper one path structure schematic view of the asphalt anti-overflow quick secondary accurate weighing hopper is provided in the utility model.
[0037] Figure 6 An asphalt pump-in weighing hopper two path structure schematic view of the asphalt anti-overflow quick secondary accurate weighing hopper is provided in the utility model.
[0038] Figure 7 An asphalt discharge path structure schematic view of the asphalt anti-overflow quick secondary accurate weighing hopper is provided in the utility model.
[0039] Figure 8 An asphalt return path structure schematic view of the asphalt anti-overflow quick secondary accurate weighing hopper is provided in the utility model.
[0040] Legend:
[0041] 1, support; 2, weighing hopper one; 3, weighing hopper two; 4, storage bin; 5, upper discharge pipe; 6, upper feeding pipe; 7, lower discharge pipe; 8, lower feeding pipe; 9, first valve; 10, second valve; 11, feeding pipe; 12, weighing sensor; 13, air cylinder; 14, push rod; 15, sealing door; 16, spring; 17, discharge pipe; 18, discharge valve; 19, mounting frame one; 20, mounting frame two; 21, air pipe; 22, adding pipe; 23, heat conducting oil; 24, oil supply pipe; 25, spraying pipe; 26, third valve; 27, fourth valve. Specific implementation
[0042] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the utility model specification, 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 the person skilled in the art without creative labor are within the protection scope of the utility model.
[0043] Refer to Figures 1-6The utility model provides an embodiment: a kind of asphalt anti-overflow quick secondary accurate weighing hopper, comprising: support 1, as basic installation component;Supply assembly;It is located above support 1, and with asphalt delivery pump communication, for supplying asphalt;Weighing hopper one 2, its below is equipped with weighing hopper two 3, both are movably connected with support 1, for receiving the asphalt discharged by supply assembly;Weighing sensor 12, it is located at the bottom surface at the edge of weighing hopper one 2 and weighing hopper two 3, for detecting the weight after the asphalt is received by both;Vent pipe 21, it is communicated with weighing hopper one 2, for when the asphalt in weighing hopper one 2 is too much, excess asphalt is drained to weighing hopper two 3;Discharge mechanism, it is located in weighing hopper one 2, for making weighing hopper one 2 form passage and make asphalt transfer to weighing hopper two 3;Backflow mechanism, it is communicated with weighing hopper two 3, for guiding asphalt to discharge from weighing hopper two 3 when weighing fails.
[0044] Weighing hopper one 2 and weighing hopper two 3 can be installed by support 1, asphalt can be delivered to the inside of supply assembly by asphalt delivery pump, asphalt can be supplied to the inside of weighing hopper one 2 at this time, since asphalt enters weighing hopper one 2, weighing hopper one 2 is pressed to move down, and then weighing sensor 12 is pressed, the asphalt in weighing hopper one 2 can be weighed at this time, when weighing is finished, discharge mechanism is used to make weighing hopper one 2 form passage and make asphalt transfer to weighing hopper two 3, weighing sensor 12 can weigh the asphalt in weighing hopper two 3 at this time, to realize secondary weighing of asphalt, if the theoretical value of asphalt is C, the value of asphalt in weighing hopper one 2 is A, A=(C-B), when the asphalt in weighing hopper one 2 enters weighing hopper two 3, weighing hopper two 3 is responsible for weighing B value at this time, B+A value can be obtained at this time, and the theoretical value C of asphalt is obtained, to realize secondary measurement of asphalt, avoid the case that proportion error between asphalt and other raw materials is large, and by weighing asphalt twice, the first time is pre-weighing, a value lower than the theoretical value is preset to quickly weigh asphalt, the second time is accurate weighing, and the remaining asphalt value is slowly and accurately weighed, so that the waiting time of asphalt weighing is reduced, and when asphalt enters the inside of weighing hopper one 2, if the amount of asphalt is too much, asphalt will overflow from vent pipe 21 to weighing hopper two 3 at this time, so that the phenomenon that asphalt flows out from the top of weighing hopper one 2 is avoided, and the influence of asphalt on the environment and the appearance of equipment is avoided.
[0045] Refer to Figure 1 And Figure 3The supply assembly comprises a storage bin 4, which is communicated with the upper discharge pipe 5, the lower discharge pipe 7 and the supply pipe 11 respectively. The upper discharge pipe 5 is communicated with the upper inlet pipe 6, the upper inlet pipe 6 is communicated with the weighing hopper 1, the lower discharge pipe 7 is communicated with the lower inlet pipe 8, the lower inlet pipe 8 is communicated with the weighing hopper 2, the supply pipe 11 is communicated with the asphalt conveying pump, and the first valve 9 is arranged between the upper discharge pipe 5 and the upper inlet pipe 6, and the second valve 10 is arranged between the lower discharge pipe 7 and the storage bin 4.
[0046] The asphalt conveying pump can convey the asphalt along the supply pipe 11 to the storage bin 4, at this time, the asphalt can enter the inside of the weighing hopper 1 along the upper discharge pipe 5 and the upper inlet pipe 6, and also can enter the inside of the weighing hopper 2 along the lower discharge pipe 7 and the lower inlet pipe 8, and opening the first valve 9 and closing the second valve 10 can make the asphalt only enter the weighing hopper 1, and opening the second valve 10 and closing the first valve 9 can make the asphalt only enter the weighing hopper 2.
[0047] With reference to Figures 1-4 , the discharge mechanism comprises a cylinder 13, the output end of the cylinder 13 is provided with a push rod 14, the bottom of the push rod 14 is provided with a sealing door 15, and the bottom of the outer wall of the push rod 14 is sleeved with a spring 16. The weighing hopper 1 is fixedly provided with a mounting frame 2 0, the cylinder 13 is connected with the mounting frame 2 0, and the cylinder 13 is located above the weighing hopper 1. The inside of the weighing hopper 1 is provided with a mounting frame 1 9, which is used for providing guidance when the push rod 14 moves.
[0048] The push rod 14 is pushed out by driving the cylinder 13, the push rod 14 drives the sealing door 15 to move downwards and close to the weighing hopper 2, at this time, the bottom of the weighing hopper 1 forms a passage, so that the asphalt in the inside of the weighing hopper 1 enters the weighing hopper 2, so that the asphalt can be transferred when the weighing hopper 1 contacts the asphalt for weighing, and the asphalt can also be directly transferred to the weighing hopper 2 when overflow occurs in the vent pipe 21, so that the vent pipe 21 can be prevented from being blocked by too much asphalt.
[0049] With reference to Figure 1 and Figure 3 , the bottom of the weighing hopper 2 is provided with a discharge pipe 17, and the inside of the discharge pipe 17 is provided with a discharge valve 18.
[0050] The discharge pipe 17 forms a passage by opening the discharge valve 18, at this time, the asphalt in the inside of the weighing hopper 2 can be discharged along the discharge pipe 17.
[0051] With reference to Figure 1 , Figure 2 , Figure 7 and Figure 8 , the reflux mechanism comprises a spraying pipe 25, one end of the spraying pipe 25 is located at the inner bottom of the weighing hopper 2, the other end of the spraying pipe 25 is provided with a third valve 26, and the third valve 26 is communicated with the first valve 9 through a pipeline.
[0052] When overflow occurs, the asphalt can be made to enter the weighing hopper two 3 through the discharge mechanism, at this time, it indicates that the weighing fails, at this time, the third valve 26 is opened and the first valve 9 and the second valve 10 are closed, then the asphalt pump is reversed, the asphalt in the weighing hopper two 3 can be returned along the spray pipe 25, the third valve 26, the first valve 9, the upper discharge pipe 5, the storage bin 4 and the feeding pipe 11 in turn, finally the third valve 26 is closed, the first valve 9 is opened and the asphalt conveying pump is reversed, the asphalt can re-enter the weighing hopper one 2 to be weighed, and when the weighing is completed, the asphalt in the weighing hopper two 3 can be sprayed along the spray pipe 25.
[0053] With reference to Figure 1 and Figure 3 , the outer wall of the weighing hopper two 3 is communicated with the oil supply pipe 24 for conveying the heat conducting oil 23 to the inside of the weighing hopper two 3.
[0054] The heat conducting oil 23 can be supplied to the inside of the weighing hopper two 3 through the oil supply pipe 24, since the weighing hopper two 3 is responsible for accurate weighing, the weighing speed is slow, the heat conducting oil 23 can be used to dissipate heat of the weighing hopper two 3, so as to avoid that the temperature of the weighing hopper two 3 is too high.
[0055] With reference to Figure 1 and Figure 3 , the bottom of the lower discharge pipe 7 is communicated with the adding pipe 22, the middle part of the adding pipe 22 is installed with the fourth valve 27.
[0056] By opening the fourth valve 27, the additives can be conveyed to the weighing hopper two 3 along the adding pipe 22 and the lower discharge pipe 7 and the lower feeding pipe 8.
[0057] Working principle: in use, the asphalt conveying pump is used to convey asphalt along the feeding pipe 11 into the storage bin 4, at this time the first valve 9 is opened to make the asphalt continue to enter the weighing hopper 1 along the upper discharge pipe 5 and the upper feeding pipe 6, then the first valve 9 is closed, at this time the weighing hopper 1 is pressed by the pressure of the asphalt and moves downward, at this time the weighing hopper 1 presses the weighing sensor 12, at this time the weight of the asphalt in the weighing hopper 1 is known, and the weighing process is fast weighing, then the driving cylinder 13 drives the push rod 14 to push out, the sealing door 15 is separated from the weighing hopper 1 through the push rod 14, so that the asphalt in the weighing hopper 1 enters the weighing hopper 2, the weighing hopper 2 and the asphalt are weighed again through the weighing sensor 12 in contact with the weighing hopper 2, the amount of asphalt entering the weighing hopper 1 is less than the actual value of the asphalt used, at this time the second valve 10 is opened to make the asphalt enter the weighing hopper 2 along the bin, the lower discharge pipe 7 and the lower feeding pipe 8, thereby the missing amount of asphalt is supplemented, so as to realize the secondary measurement of the asphalt, the process of supplementing the remaining asphalt is slower, so the speed of weighing the asphalt in the weighing hopper 2 is slower, that is, slow measurement, which improves the stability of the performance of the final asphalt mixture, the second valve 10 is closed and the fourth valve 27 is opened, at this time the additive can be added to the inside of the weighing hopper 2, and when too much asphalt enters the weighing hopper, the excess asphalt will enter the weighing hopper 2 along the air pipe 21, so that the excess asphalt can not overflow from the inside of the weighing hopper and flow to the equipment, affecting the environment and the appearance of the equipment, and when overflow occurs, the electric push rod 14 can be directly driven to push out the push rod 14 and the sealing door 15 to form a passage at the bottom of the weighing hopper 1, so that the asphalt can directly enter the inside of the weighing hopper 2, thereby reducing the amount of asphalt entering the air pipe 21, avoiding the blockage of the air pipe 21, and at this time the weighing of the asphalt by the weighing hopper 1 fails, then the third valve 26 can be opened, the first valve 9 and the second valve 10 are closed, and the asphalt pump is reversed, so that the asphalt in the weighing hopper 2 returns along the spray pipe 25, the third valve 26, the first valve 9, the upper discharge pipe 5, the bin and the feeding pipe 11 in turn, then the third valve 26 can be closed, the first valve 9 is opened again and the asphalt conveying pump is rotated, at this time the asphalt can re-enter the inside of the weighing hopper 1 for weighing, and after the final weighing of the asphalt is completed, the asphalt can be discharged through the spray pipe 25, and the additive can also be discharged from the discharge pipe 17 by opening the fourth valve 27, and the heat conducting oil 23 can enter the bottom of the weighing hopper 2 through the oil supply pipe 24, so as to avoid the temperature of the weighing hopper 2 being too high.
[0058] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A rapid, precise, secondary weighing hopper for preventing asphalt spillage, characterized in that, include: The bracket (1) serves as a basic installation component; Supply components; It is located above the support (1) and is connected to the asphalt delivery pump for supplying asphalt; Weighing hopper one (2) is provided below weighing hopper two (3), both of which are movably connected to the support (1) and are used to receive the asphalt discharged from the supply component; Weighing assembly, located on the bottom surface of the edges of weighing hopper one (2) and weighing hopper two (3), is used to detect the weight of the two after they are pressed down by asphalt; Ventilation pipe (21) is connected to weighing hopper one (2) and is used to divert excess asphalt to weighing hopper two (3) when there is too much asphalt inside weighing hopper one (2). The discharge mechanism, located inside the weighing hopper one (2), is used to create a passage in the weighing hopper one (2) to transfer asphalt into the weighing hopper two (3); The reflux mechanism, which is connected to the weighing hopper 2 (3), is used to guide the asphalt out of the weighing hopper 2 (3) when weighing fails.
2. The asphalt spill prevention rapid secondary accurate weighing hopper according to claim 1, characterized in that, The supply component includes a storage bin (4), which is connected to the upper discharge pipe (5), the lower discharge pipe (7) and the supply pipe (11) respectively. The weighing component includes a weighing sensor (12), and two sets of the weighing sensor (12) are provided. Both sets of the weighing sensor (12) are fixedly connected to the bracket (1), and the two sets of the weighing sensor (12) are in contact with the bottom surface at the edge of the weighing hopper one (2) and the weighing hopper two (3) respectively.
3. The asphalt spill prevention rapid secondary accurate weighing hopper according to claim 2, characterized in that, The upper discharge pipe (5) is connected to the upper inlet pipe (6), the upper inlet pipe (6) is connected to the weighing hopper one (2), the lower discharge pipe (7) is connected to the lower inlet pipe (8), the lower inlet pipe (8) is connected to the weighing hopper two (3), the feeding pipe (11) is connected to the asphalt conveying pump, a first valve (9) is provided between the upper discharge pipe (5) and the upper inlet pipe (6), and a second valve (10) is provided between the lower discharge pipe (7) and the storage bin (4).
4. The asphalt spill prevention rapid secondary accurate weighing hopper according to claim 1, characterized in that, The emission mechanism includes a cylinder (13), a push rod (14) is installed at the output end of the cylinder (13), a sealing door (15) is installed at the bottom of the push rod (14), and a spring (16) is sleeved on the bottom of the outer wall of the push rod (14).
5. The asphalt spill prevention rapid secondary accurate weighing hopper according to claim 4, characterized in that, The weighing hopper (2) is fixed with a mounting bracket (20), and the cylinder (13) is connected to the mounting bracket (20), and the cylinder (13) is located above the weighing hopper (2).
6. The asphalt spill prevention rapid secondary accurate weighing hopper according to claim 4, characterized in that, The weighing hopper (2) is equipped with a mounting bracket (19) which provides guidance for the movement of the push rod (14).
7. The asphalt spill prevention rapid secondary accurate weighing hopper according to claim 2, characterized in that, The bottom of the weighing hopper 2 (3) is equipped with a discharge pipe (17), and the discharge pipe (17) is equipped with a discharge valve (18). The outer wall of the weighing hopper 2 (3) is connected to an oil supply pipe (24) for transporting heat transfer oil (23) to the inside of the weighing hopper 2 (3). The bottom of the lower discharge pipe (7) is connected to an addition pipe (22), and a fourth valve (27) is installed in the middle of the addition pipe (22).
8. The asphalt spill prevention rapid secondary accurate weighing hopper according to claim 3, characterized in that, The reflux mechanism includes a spray pipe (25), one end of which is located at the bottom of the weighing hopper (3), and the other end of which is equipped with a third valve (26). The third valve (26) is connected to the first valve (9) through a pipe.