Rapid weighing device for viscous asphalt

Abstract

The utility model relates to the technical field of laboratory asphalt weighing, in particular to a viscous asphalt rapid weighing device, which comprises an instrument frame, a weighing platform and a control panel, the weighing platform is fixedly connected to the top end of the instrument frame, and the control panel is fixedly mounted at the front end of the weighing platform. A conical funnel hanging weighing structure is arranged at the lower end of the weighing platform, and an asphalt external heating device is arranged on the inner side of the instrument frame. According to the rapid weighing device for the viscous asphalt, on the basis of an original electronic scale, the container fixing device is designed, a sample is contained in the container before weighing, the container is arranged on the fixing device, and the constant-temperature heating sleeve is arranged outside the container, so that the purposes of heat preservation of the sample and no adhesion to the container can be achieved, and rapid and automatic weighing of the asphalt can be achieved; and the weighing device adopts a semi-sealed design in structure, so that external pollution and injury to personnel are reduced.

Description

Technical Field

[0001] This utility model relates to the field of laboratory asphalt weighing technology, specifically a rapid weighing device for viscous asphalt. Background Technology

[0002] With the rapid development of highway construction, my country's road asphalt production enterprises have also experienced explosive growth. In particular, heavy-duty asphalt and modified asphalt have achieved a qualitative leap from nothing to something, from small to large, and from few to many, making a significant contribution to my country's road construction. The invention of the asphalt mixer, in particular, enabled the continuous production of asphalt concrete. With continuous technological breakthroughs and the application of various high-precision components, the control of large-scale production processes has become increasingly precise.

[0003] For example, the authorization announcement number "CN222401340U" is for an asphalt weighing device for an asphalt mixing plant. The lifting scraper component scrapes the asphalt on the inner wall of the weighing barrel from top to bottom, minimizing the amount of residual asphalt in the barrel, ensuring weighing accuracy, and improving work efficiency. However, during the pre-production testing process, the innovation of weighing tools is relatively lagging. Currently, the weighing tools used in the laboratory are only conventional weighing instruments, which cannot realize the functions of heating, heat preservation, weighing, and adding asphalt. They can only be operated manually, which can easily lead to inaccurate weighing, thereby affecting the quality of the project. At the same time, conventional methods require the asphalt to be repeatedly heated and kept warm in an oven before being taken out and put in. The weighing time is too long, and external contaminants can easily mix into the asphalt, and the operators' hands are easily burned. Utility Model Content

[0004] The purpose of this invention is to solve the problems of existing asphalt weighing devices used in asphalt mixing plants, which require asphalt to be repeatedly heated and kept warm in an oven, then removed and placed in the oven, resulting in excessive weighing time, easy contamination from the outside world into the asphalt, and easy burns to the hands of operators. Therefore, this invention proposes a rapid weighing device for viscous asphalt.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a rapid weighing device for viscous asphalt, including an instrument frame, a weighing platform and a control panel. The weighing platform is fixedly connected to the top of the instrument frame, and the control panel is fixedly installed at the front end of the weighing platform. A conical funnel suspension weighing structure is provided at the lower end of the weighing platform, and an external heating device for asphalt is provided on the inner side of the instrument frame.

[0007] Preferably, the conical funnel suspended weighing structure includes a weighing block and a conical funnel. The weighing block is movably installed at the lower end of the weighing platform. An annular hook is fixedly connected to the lower end of the weighing block. A meshing ring is movably connected to the inner side of the annular hook. The conical funnel is fixedly connected to the lower end of the meshing ring. A suspension wire is fixedly connected to the lower end of the control panel. A temperature sensor is fixedly connected to the lower end of the suspension wire.

[0008] Preferably, the lower end of the conical funnel is provided with a solenoid valve-controlled feeding device. The solenoid valve-controlled feeding device includes a feeding port and a small steel ball. The feeding port is fixedly opened at the bottom end of the conical funnel. The small steel ball is movably placed on the inner side of the conical funnel. A solenoid valve A is fixedly connected to one side of the outer wall of the conical funnel, and a solenoid valve B is fixedly connected to the lower end of the other side of the outer wall of the conical funnel.

[0009] Preferably, the outer wall of the small steel ball is movably abutted against the top of the feed port, the outer wall of the small steel ball is movably connected to solenoid valve A, and the outer wall of the small steel ball is also movably connected to solenoid valve B.

[0010] Preferably, the asphalt external heating device includes a first heating cylinder and a second heating cylinder. The first heating cylinder is movably installed on one side of the instrument frame, and the second heating cylinder is movably installed on the other side of the instrument frame. A conical cavity is fixedly opened between the first heating cylinder and the second heating cylinder, and the conical cavity is movably sleeved on the outside of the conical funnel.

[0011] Preferably, the outer wall of the instrument frame is hinged to two double doors, and handles are fixedly installed on the outer walls of the two double doors.

[0012] The present invention proposes a rapid weighing device for viscous asphalt, which has the following advantages: Based on the original electronic scale, it is designed with a container fixing device. Before weighing, the sample is placed in the container and placed on the fixing device. A constant temperature heating jacket is arranged on the outside of the container to keep the sample warm and prevent it from sticking to the container. It is designed with a display screen to display weight and temperature information in real time. It integrates a microprocessor to control the heating and weighing process and sets an alarm function to issue a prompt when the weight reaches the preset value. Therefore, it can realize rapid and automatic weighing of asphalt, and the asphalt is not easy to leak everywhere. The weighing device adopts a semi-sealed design to reduce external contamination and injury to personnel. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 for Figure 1 A frontal sectional view;

[0015] Figure 3This is a front sectional view of the heating device;

[0016] Figure 4 This is a top-view cross-sectional diagram of the heating device;

[0017] Figure 5 for Figure 2 Enlarged sectional view of section A in the middle;

[0018] Figure 6 for Figure 2 Enlarged sectional view of section B.

[0019] In the diagram: 1. Instrument frame, 2. Weighing platform, 3. Control panel, 4. Conical funnel suspended weighing structure, 41. Weighing block, 42. Ring hook, 43. Engaging ring, 44. Conical funnel, 45. Suspension wire, 46. Temperature sensor, 5. Solenoid valve controlled feeding device, 51. Feed port, 52. Small steel ball, 53. Solenoid valve A, 54. Solenoid valve B, 61. Double door, 62. Handle, 7. Asphalt external heating device, 71. First heating cylinder, 72. Second heating cylinder, 73. Conical cavity. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Example 1:

[0022] Please see Figure 1-6 In this embodiment, a rapid weighing device for viscous asphalt includes an instrument frame 1, a weighing platform 2, and a control panel 3. The weighing platform 2 is fixedly connected to the top of the instrument frame 1 and is a general-purpose electronic balance weighing platform. A container buckle is fixed below the weighing platform 2 for fixing a conical container. The control panel 3 is fixedly installed at the front end of the weighing platform 2. The control panel 3 is existing technology. By equipping the instrument frame 1 with a display screen, the display screen can display weight and temperature information in real time and integrate a microprocessor for controlling the heating and weighing process. An alarm function is set, and a prompt is issued when the weight reaches a preset value. A conical funnel suspension weighing structure 4 is provided at the lower end of the weighing platform 2, and an external asphalt heating device 7 is provided on the inner side of the instrument frame 1.

[0023] The conical funnel suspension weighing structure 4 includes a weighing block 41 and a conical funnel 44. The weighing block 41 is movably installed at the lower end of the weighing platform 2. The weighing block 41 is pulled downward by the weight, so the electronic balance on the top supporting platform 2 will measure the weight change. The lower end of the weighing block 41 is fixedly connected to an annular hook 42. The annular hook 42 is a structure with a transverse groove carved in the inner wall of a metal stainless steel. Therefore, the engagement ring 43 extending from the top of the conical funnel 44 can be inserted into the annular hook 42 for suspension and fixation. The engagement ring 43 is movably connected to the inner side of the annular hook 42. The conical funnel 44 is fixedly connected to the lower end of the engagement ring 43. The lower end of the control panel 3 is fixedly connected to... There is a suspension wire 45, which adopts a spiral wire structure. The suspension wire 45 connects the top control panel 3 and the lower temperature sensor 46. The bottom end of the temperature sensor 46 is inserted into the conical funnel 44 to measure the temperature of the asphalt inside the conical funnel 44. The conical funnel 44 is a stainless steel conical container with a cone bottom angle of 70° to facilitate the flow of asphalt. The outlet diameter of the lower end of the conical funnel 44 is 8mm. The inner wall is polished and coated with a polytetrafluoroethylene non-stick layer. A precision solenoid valve is installed at the outlet of the lower part of the conical funnel 44 container. A constant temperature heating jacket is arranged on the outside of the conical funnel 44 container. The lower end of the suspension wire 45 is fixedly connected to the temperature sensor 46.

[0024] The lower end of the conical funnel 44 is equipped with a solenoid valve-controlled feeding device 5. The solenoid valve-controlled feeding device 5 includes a feeding port 51 and a small steel ball 52. The feeding port 51 is fixedly opened at the bottom end of the conical funnel 44. The small steel ball 52 is movably placed on the inner side of the conical funnel 44. A solenoid valve A53 is fixedly connected to one side of the outer wall of the conical funnel 44. A solenoid valve B54 is fixedly connected to the lower end of the other side of the outer wall of the conical funnel 44. The outer wall of the small steel ball 52 is movably pressed against the top of the feeding port 51. The outer wall of the small steel ball 52 is movably connected to the solenoid valve A53. The outer wall of the small steel ball 52 is also movably connected to the solenoid valve B54.

[0025] The asphalt external heating device 7 includes a first heating cylinder 71 and a second heating cylinder 72. The first heating cylinder 71 is movably installed inside one side of the instrument frame 1, and the second heating cylinder 72 is movably installed inside the other side of the instrument frame 1. A conical cavity 73 is fixedly formed between the first heating cylinder 71 and the second heating cylinder 72. The conical cavity 73 is movably fitted onto the outside of the conical funnel 44. The heating device consists of two semi-circular cylinders that can be closed, namely the first heating cylinder 71 and the second heating cylinder 72. The conical cavity 73 is formed by leaving a shape similar to a conical funnel between the heating cylinders 72. The inner wall of the conical cavity 73 does not directly contact the outer wall of the conical funnel 44, leaving a certain gap. The first heating cylinder 71 and the second heating cylinder 72 are electrically heated and can be powered by connecting a circuit. After receiving the current, the first heating cylinder 71 and the second heating cylinder 72 will generate heat, forming a constant temperature heating jacket that wraps around the outside of the conical funnel 44. In this way, continuous heating of the conical funnel 44 can achieve the purpose of keeping the sample warm and preventing it from sticking to the container.

[0026] The outer wall of the instrument frame 1 is hinged to two double doors 61. The double doors 61 are made of stainless steel and can be opened by flipping along the hinge at the front end of the instrument frame 1. This double door design makes it easy to put in and take out the conical funnel 44 container and also facilitates the heating and temperature control function. The outer walls of the two double doors 61 are fixedly equipped with handles 62, which are reserved for human use.

[0027] Working principle:

[0028] The rapid weighing device for viscous asphalt is based on the original electronic scale and features a conical container fixing device. Before weighing, the asphalt sample is placed in the conical container and placed on the fixing device. The weight of the asphalt sample is calculated by gravity and the weighing result is displayed on the control panel screen. The display screen at the front of the control panel above the rapid weighing device for viscous asphalt displays the weight and temperature information in real time and integrates a microprocessor to control the heating and weighing process. It also has an alarm function that issues a prompt when the weight reaches the preset value.

[0029] Weighing platform 2 is fixedly connected to the top of instrument frame 1. Weighing platform 2 is a general electronic balance weighing platform. A container buckle is fixed below the weighing platform 2 for fixing the conical container. The instrument frame 1 is equipped with a display screen of control panel 3. The display screen can display weight and temperature information in real time and integrates a microprocessor for controlling the heating and weighing process and setting an alarm function. When the weight reaches the preset value, a prompt will be issued.

[0030] Weighing block 41 suspends the cone-shaped funnel containing asphalt below the weighing platform 2. Weighing block 41 will be pulled downward by the weight, so the electronic balance on the top weighing platform 2 will measure the weight change. The ring hook 42 is a structure with a transverse groove carved in the inner wall of the metal stainless steel. Therefore, the ring 43 extending from the top of the cone-shaped funnel 44 can be inserted into the ring hook 42 for suspension and fixation. The suspension wire 45 adopts a spiral wire structure. The bottom end of the temperature sensor 46 is inserted into the inside of the cone-shaped funnel 44, which can measure the temperature of the asphalt carried inside the cone-shaped funnel 44.

[0031] The conical funnel 44 is a stainless steel conical container with a cone bottom angle of 70° to facilitate the outflow of asphalt. The outlet diameter at the lower end of the conical funnel 44 is 8mm. The inner wall is polished and coated with a polytetrafluoroethylene non-stick layer. A precision solenoid valve is installed at the outlet at the lower part of the conical funnel 44 container. A constant temperature heating jacket is arranged on the outside of the conical funnel 44 container.

[0032] The heating device consists of two closable semi-circular cylinders, namely the first heating cylinder 71 and the second heating cylinder 72. A cone-shaped cavity 73 is reserved between the first heating cylinder 71 and the second heating cylinder 72. The inner wall of the cone cavity 73 does not directly contact the outer wall of the cone funnel 44, leaving a certain gap. The first heating cylinder 71 and the second heating cylinder 72 are electrically heated and can be powered by connecting a circuit. After receiving the current, the first heating cylinder 71 and the second heating cylinder 72 generate heat, forming a constant temperature heating jacket that wraps around the outside of the cone funnel 44. In this way, continuous heating of the cone funnel 44 can achieve the purpose of keeping the sample warm and preventing it from sticking to the container.

[0033] The conical funnel 44 is suspended below the weighing platform 2. The conical funnel 44 can be manually disassembled to clean the asphalt material inside. The small steel ball 52 is made of smooth and rounded stainless steel. The small steel ball 52 can be tilted out. After being placed inside the conical funnel 44, the small steel ball 52 will block the lower discharge port 51. The two solenoid valves are set at different heights. Both solenoid valves can be automatically controlled by the control panel 3. When solenoid valve A53 is closed, solenoid valve B54 will open. Solenoid valve B will attract the small steel ball 52 to the lower discharge port 51 of the conical funnel 44 to block the asphalt from flowing out. When solenoid valve A53 is open, solenoid valve B54 will close. At this time, the small steel ball 52 will be attracted by solenoid valve A to a position close to the upper part of the inner wall of the conical funnel 44. The lower discharge port 51 will not be blocked, and the lower end of the conical funnel 44 will be open to discharge the asphalt sample normally.

[0034] The double door 61 is made of stainless steel and can be opened by flipping along the hinge at the front of the instrument frame 1. This double door design makes it easy to put in and take out the conical funnel 44 container and also facilitates the heating and temperature control functions.

[0035] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A rapid weighing device for viscous asphalt, comprising an instrument frame (1), a weighing platform (2), and a control panel (3), wherein the weighing platform (2) is fixedly connected to the top of the instrument frame (1), and the control panel (3) is fixedly installed at the front end of the weighing platform (2), characterized in that: The weighing platform (2) is provided with a conical funnel suspension weighing structure (4) at its lower end. The instrument frame (1) is provided with an asphalt external heating device (7) on its inner side. The conical funnel suspension weighing structure (4) includes a weighing block (41) and a conical funnel (44). The weighing block (41) is movably installed at the lower end of the weighing platform (2). The lower end of the weighing block (41) is fixedly connected to a ring hook (42). The inner side of the ring hook (42) is movably connected to a meshing ring (43). The conical funnel (44) is fixedly connected to the lower end of the meshing ring (43). The lower end of the control panel (3) is fixedly connected to a suspension device (7). A suspension wire (45) is provided, and a temperature sensor (46) is fixedly connected to the lower end of the suspension wire (45). A solenoid valve-controlled feeding device (5) is provided at the lower end of the conical funnel (44). The solenoid valve-controlled feeding device (5) includes a feeding port (51) and a small steel ball (52). The feeding port (51) is fixedly opened at the bottom end of the conical funnel (44). A small steel ball (52) is movably placed on the inner side of the conical funnel (44). A solenoid valve A (53) is fixedly connected to one side of the outer wall of the conical funnel (44). A solenoid valve B (54) is fixedly connected to the lower end of the other side of the outer wall of the conical funnel (44).

2. The rapid weighing device for viscous asphalt according to claim 1, characterized in that: The outer wall of the small steel ball (52) is in contact with the top of the feed port (51), the outer wall of the small steel ball (52) is connected to the solenoid valve A (53), and the outer wall of the small steel ball (52) is also connected to the solenoid valve B (54).

3. The rapid weighing device for viscous asphalt according to claim 1, characterized in that: The asphalt external heating device (7) includes a first heating cylinder (71) and a second heating cylinder (72). The first heating cylinder (71) is movably installed on one side inside the instrument frame (1), and the second heating cylinder (72) is movably installed on the other side inside the instrument frame (1). A conical cavity (73) is fixedly opened between the first heating cylinder (71) and the second heating cylinder (72), and the conical cavity (73) is movably sleeved on the outside of the conical funnel (44).

4. The rapid weighing device for viscous asphalt according to claim 1, characterized in that: The outer wall of the instrument frame (1) is hinged to two double doors (61), and handles (62) are fixedly installed on the outer walls of the two double doors (61).

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