Self-cleaning waste gas isolation device of stirring tank

Abstract

The utility model discloses a stirring tank self-cleaning type waste gas isolation device which comprises a gas inlet pipe, a material guide plate, a gravity automatic switch valve plate and a cleaning pipe, the material guide plate is obliquely arranged relative to the vertical direction, and materials are guided into a stirring tank through the gravity of the materials; the cleaning pipe is fixedly connected to the material guide plate, located at the top end of the material guide plate and used for blowing air to the material guide plate and cleaning residual materials on the material guide plate. One end of the air inlet pipe communicates with the air pump, and the other end communicates with the cleaning pipe for supplying high-pressure airflow to the cleaning pipe; the gravity automatic switch valve plate is hinged to the material guide plate, is positioned at one end, far away from the cleaning pipe, of the material guide plate and is used for communicating or cutting off the material guide plate and the stirring tank; when gas is continuously introduced into the cleaning pipe and the gas pressure of the gas is large enough and larger than or equal to the gas pressure of waste gas in the stirring tank, the waste gas can be effectively prevented from escaping from the stirring tank, the body health of a feeding worker is guaranteed, and the waste gas can be prevented from polluting the environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial production equipment, and in particular relates to a self-cleaning exhaust gas isolation device for a stirring tank. Background Art

[0002] Modified asphalt is an asphalt binder made by adding admixtures (modifiers) such as rubber, resin, high molecular polymer, ground rubber powder or other fillers, or by taking measures such as mild oxidation of asphalt to improve the performance of asphalt or asphalt mixture. Modified asphalt is mainly used for paving applications in special occasions such as airport runways, waterproof bridge decks, parking lots, sports fields, heavy traffic roads, intersections and road turns.

[0003] The mixing tank of modified asphalt usually needs to be manually fed, and the temperature inside the tank is 160-180°C during the feeding process. During the high-temperature reaction process, a large amount of waste gas will be generated in the tank. When the tank mouth is opened to feed, a large amount of waste gas will overflow from the tank mouth, seriously endangering the health of workers, and the waste gas will also pollute the environment. Utility Model Content

[0004] The utility model aims to provide a self-cleaning exhaust gas isolation device for a stirring tank, so as to solve at least one of the above-mentioned technical problems.

[0005] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0006] A self-cleaning exhaust gas isolation device for a stirring tank, comprising:

[0007] The material guide plate is arranged obliquely relative to the vertical direction, and uses the gravity of the material itself to guide the material into the mixing tank;

[0008] A cleaning pipe is fixedly connected to the material guide plate and is located at the top of the material guide plate, and is used for blowing air toward the material guide plate to clean the residual material on the material guide plate.

[0009] Through such an arrangement, the cleaning pipe can blow the material remaining on the material guide plate into the mixing tank. On the other hand, when gas is continuously introduced into the cleaning pipe and the gas pressure is large enough, greater than or equal to the pressure of the exhaust gas in the mixing tank, it can effectively prevent the exhaust gas from escaping from the material guide plate, thereby ensuring the health of the feeding workers and avoiding environmental pollution caused by the exhaust gas.

[0010] Preferably, the material guide plate is configured to be truncated cone or prism shape.

[0011] Preferably, it also includes a gravity automatic switch valve plate, which is hingedly connected to the material guide plate and is located on an end of the material guide plate away from the cleaning pipe;

[0012] It is defined that the material guide plate includes a feed port and a discharge port, the cleaning pipe is arranged at one end of the feed port, and the gravity automatic switch valve plate is arranged at one end of the discharge port.

[0013] Preferably, the area of ​​the gravity automatic switch valve plate is greater than or equal to the area of ​​the discharge port.

[0014] Preferably, the shape and size of the cleaning pipe are configured to match the shape and size of the feed port, and the cleaning pipe is arranged around the feed port.

[0015] Preferably, it also includes an air intake pipe, one end of which is connected to the air pump, and the other end of which is connected to the cleaning pipe.

[0016] Preferably, the opening direction of the gravity automatic switch valve plate is towards a direction away from the material guide plate.

[0017] More preferably, it further comprises a control module, wherein the control module is electrically connected to the air pump and is used to control the opening and closing of the air pump.

[0018] Preferably, the feed port is sunk into the stirring tank to a depth of 30 mm.

[0019] Preferably, the control module is configured as a solenoid valve.

[0020] Beneficial effects:

[0021] The utility model discloses a self-cleaning exhaust gas isolation device for a mixing tank, comprising a cleaning pipe and an automatic gravity switch valve plate, both of which can prevent exhaust gas from escaping when feeding. Gas is introduced into the cleaning pipe to clean the material remaining on the material guide plate. When gas is continuously introduced into the cleaning pipe and the gas pressure is large enough, greater than or equal to the pressure of the exhaust gas in the mixing tank, the exhaust gas can be effectively prevented from escaping from the mixing tank, thereby ensuring the health of the feeding workers and avoiding environmental pollution caused by the exhaust gas. The automatic gravity switch valve plate has two states, namely, closed and open. Under normal circumstances, the automatic gravity switch valve plate is in a closed state. When material is fed in, the automatic gravity switch valve plate senses gravity and automatically opens. After the material enters, the automatic gravity switch valve plate automatically closes, thereby effectively preventing exhaust gas from escaping. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional structural diagram of the exhaust gas isolation device of the embodiment of the utility model;

[0023] Figure 2 It is a top view of the exhaust gas isolation device of the embodiment of the utility model;

[0024] Figure 3 For along Figure 1 Cross-sectional view along the AA direction.

[0025] Reference numerals

[0026] 1-air inlet pipe; 2-material guide plate; 3-gravity automatic switch valve plate; 4-cleaning pipe. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0028] The technical solution of the utility model is described in detail below with specific embodiments.

[0029] Please also read Figures 1 to 3 The utility model embodiment discloses a self-cleaning exhaust gas isolation device for a mixing tank, comprising an air inlet pipe 1, a material guide plate 2, a gravity automatic switch valve plate 3 and a cleaning pipe 4, wherein the material guide plate 2 is inclined relative to the vertical direction, and the gravity of the material itself is used to guide the material into the mixing tank; the cleaning pipe 4 is fixedly connected to the material guide plate 2, located at the top of the material guide plate 2, and is used to blow air to the material guide plate 2 to clean the residual material on the material guide plate 2; one end of the air inlet pipe 1 is connected to an air pump (not shown in the figure), and the other end is connected to the cleaning pipe 4, which is used to supply high-pressure airflow to the cleaning pipe 4; the gravity automatic switch valve plate 3 is hingedly connected to the material guide plate 2, located at one end of the material guide plate 2 away from the cleaning pipe 4, and is used to connect or cut off the material guide plate 2 and the mixing tank.

[0030] Specifically, the material guide plate 2 is configured to be truncated cone or prism-shaped, and the end with a smaller circumference is connected to the mixing tank. In this way, all surfaces of the material guide plate 2 are inclined, and the material poured on any side of the material guide plate 2 can flow into the mixing tank under the action of the material's own gravity; the truncated cone or prism-shaped material guide plate 2 is defined to include a feed port and a discharge port, the end with a larger circumference is the feed port, and the end with a smaller circumference is the discharge port; in this embodiment, the material guide plate 2 is configured to be a quadrangular cone, and the shape and size of the cleaning tube 4 match the shape and size of the feed port of the quadrangular cone-shaped material guide plate 2, and is arranged in a ring. The feed port is rectangular; the gravity automatic switch valve plate 3 is arranged at one end of the discharge port, and the area of ​​the gravity automatic switch valve plate 3 is greater than or equal to the area of ​​the discharge port, so that it can completely cut off the material guide plate 2 and the mixing tank. The opening direction of the gravity automatic switch valve plate 3 is towards the direction away from the material guide plate 2. The gravity automatic switch valve plate 3 has two states: closed and open. Under normal circumstances, the gravity automatic valve plate is in a closed state. When material is put in, the gravity automatic switch valve plate 3 senses gravity and automatically opens. After the material enters, the gravity automatic switch valve plate 3 automatically closes, which can effectively prevent the exhaust gas from escaping.

[0031] Preferably, the feed port is sunk into the stirring tank to a depth of 30 mm, which further effectively prevents the exhaust gas in the stirring tank from escaping to the outside of the tank.

[0032] Furthermore, the self-cleaning exhaust gas isolation device of the mixing tank in the present embodiment also includes a control module, which is electrically connected to the air pump and is used to control the opening and closing of the air pump. The control module in the present embodiment is configured as a solenoid valve, which controls the air pump to supply high-pressure airflow to the air inlet pipe 1 and the cleaning pipe 4. The airflow pressure in the present embodiment is 0.8MPa, which can clean the residual material on the material guide plate 2. When gas is continuously passed into the cleaning pipe 4 and the gas pressure is large enough, greater than or equal to the pressure of the exhaust gas in the mixing tank, the gravity automatic switch valve plate 3 may not be set. Even if the material guide plate 2 is always connected to the mixing tank, the exhaust gas in the mixing tank cannot escape, which ensures the health of the feeding workers and avoids the pollution of the environment by the exhaust gas.

[0033] As a preferred implementation, the solenoid valve in this embodiment is set to open for 1 second every 20 seconds, that is, the cleaning pipe 4 intermittently blows air to the material guide plate 2 to clean the residual material on the material guide plate 2; when feeding, the gravity automatic switch valve plate 3 senses gravity and automatically opens, and after the material enters, the gravity automatic switch valve plate 3 automatically closes, and the opening and closing angle of the gravity automatic switch valve plate 3 is positively correlated with the weight of the material. The heavier the material, the larger the opening and closing angle; when the material is poured along the material guide plate 2, the material continues to move to the gravity automatic switch valve plate 3 under the action of its own gravity, instead of all pouring onto the gravity automatic switch valve plate 3, so that its opening and closing angle is smaller. In this process, the exhaust gas in the mixing tank almost escapes, and the cleaning pipe 4 blows air to the material guide plate 2, which further hinders the exhaust gas escape trend, ensures the health of the feeding workers, and avoids the exhaust gas from polluting the environment.

[0034] In summary, the utility model provides a self-cleaning exhaust gas isolation device for a mixing tank, including a cleaning pipe 4 and a gravity automatic switch valve plate 3, both of which can prevent the exhaust gas from escaping when feeding. Gas is introduced into the cleaning pipe 4 to clean the residual material on the material guide plate 2. When gas is continuously introduced into the cleaning pipe 4 and the gas pressure is large enough, greater than or equal to the pressure of the exhaust gas in the mixing tank, it can effectively prevent the exhaust gas from escaping from the mixing tank, thereby ensuring the health of the feeding workers and avoiding the pollution of the environment by the exhaust gas. The gravity automatic switch valve plate 3 has two states, closed and open. Under normal circumstances, the gravity automatic switch valve plate is in a closed state. When material is fed in, the gravity automatic switch valve plate 3 senses gravity and automatically opens. After the material enters, the gravity automatic switch valve plate 3 automatically closes, which can effectively prevent the exhaust gas from escaping.

[0035] The above is a detailed description of an embodiment of a self-cleaning exhaust gas isolation device for a stirring tank provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A self-cleaning exhaust gas isolation device for a stirring tank, characterized in that: include: A material guide plate (2), wherein the material guide plate (2) is arranged to be inclined relative to the vertical direction, and utilizes the gravity of the material itself to guide the material into the mixing tank; A cleaning pipe (4), the cleaning pipe (4) is fixedly connected to the material guide plate (2), is located at the top of the material guide plate (2), and is used to blow air toward the material guide plate (2) to clean the residual material on the material guide plate (2).

2. A self-cleaning exhaust gas isolation device for a stirring tank according to claim 1, characterized in that: The material guide plate (2) is configured in a truncated cone shape or a prism shape.

3. A self-cleaning exhaust gas isolation device for a stirring tank according to claim 2, characterized in that: It also comprises a gravity automatic switch valve plate (3), wherein the gravity automatic switch valve plate (3) is hingedly connected to the material guide plate (2) and is located at an end of the material guide plate (2) away from the cleaning pipe (4); The material guide plate (2) is defined to include a feed port and a discharge port, the cleaning pipe (4) is arranged at one end of the feed port, and the gravity automatic switch valve plate (3) is arranged at one end of the discharge port.

4. A self-cleaning exhaust gas isolation device for a stirring tank according to claim 3, characterized in that: The area of ​​the gravity automatic switch valve plate (3) is greater than or equal to the area of ​​the discharge port.

5. A self-cleaning exhaust gas isolation device for a stirring tank according to claim 3, characterized in that: The shape and size of the cleaning pipe (4) are configured to match the shape and size of the feed port, and is arranged around the feed port.

6. A self-cleaning exhaust gas isolation device for a stirring tank according to claim 1 or 5, characterized in that: It also comprises an air intake pipe (1), one end of which is connected to the air pump, and the other end of which is connected to the cleaning pipe (4).

7. A self-cleaning exhaust gas isolation device for a stirring tank according to claim 3, characterized in that: The opening direction of the gravity automatic switch valve plate (3) is towards a direction away from the material guide plate (2).

8. A self-cleaning exhaust gas isolation device for a stirring tank according to claim 6, characterized in that: It also includes a control module, which is electrically connected to the air pump and is used to control the opening and closing of the air pump.

9. The self-cleaning exhaust gas isolation device for a stirring tank according to claim 3, characterized in that: The feed port is sunk into the stirring tank with a sinking depth of 30 mm.

10. A self-cleaning exhaust gas isolation device for a stirring tank according to claim 8, characterized in that: The control module is configured as a solenoid valve.

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