Waste gas collecting assembly for plastic processing equipment
By setting a combination of fixed and mobile air collector hoods on the rotomolding machine, the problem that the prior art cannot fully collect the exhaust gas of the rotomolding machine is solved, and the complete collection and treatment of the exhaust gas is achieved, and workers and the environment are protected.
Patent Information
- Application Number
- CN202422201092.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The prior art is to set up a fixed air collector above the rotomolding machine to completely collect organic waste gas, resulting in waste gas leakage and causing harm to workers and the environment.
An exhaust gas collection assembly including a fixed air collecting hood and a mobile air collecting hood is designed. The fixed air collecting hood is used to absorb organic exhaust gas overflowing from the door gap above the rotomolding machine door. The mobile air collecting hood moves with the opening and closing of the rotomolding machine door and absorbs the exhaust gas at the center of the door.
The complete collection of organic waste gas is achieved, the waste gas leakage is reduced, workers and the environment are protected, and the operation of large rotomolding equipment is not affected.
Smart Images
Figure CN222819395U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic production, in particular to a waste gas collecting component for plastic processing equipment. Background Art
[0002] When treating the waste gas of a large rotomolding machine, a large amount of organic waste gas is generated during the process of heating the resin with hot air in the oven of the rotomolding machine. This process is completed in the oven and outside the oven during demoulding. Due to the structural problems of the rotomolding machine, the waste gas concentration at each leakage point is different. The oven in the rotomolding machine is round, so the organic waste gas generated during heating will diffuse upward along the round edge of the oven, which results in a high waste gas concentration in the middle of the equipment and a low concentration on both sides of the equipment. Figure 1 As shown. If this kind of organic waste gas is not completely collected and leaks in the workshop, it will not only cause great harm to the workers' health, but also have a great impact on the surrounding environment. The traditional method is to set a fixed gas collection hood above the rotational molding machine, but due to the different concentrations and positions of waste gas generated in different processes, the traditional gas collection hood cannot completely collect organic waste gas, causing waste gas leakage and causing adverse effects on the surrounding environment, so it needs further improvement. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide an exhaust gas collecting component for plastic processing equipment.
[0004] The utility model is realized through the following technical solutions:
[0005] A waste gas collection assembly for plastic processing equipment comprises a rotomolding machine body, furnace body openings arranged on both sides of the rotomolding machine body, two groups of furnace body side doors respectively located at the furnace body openings on both sides of the rotomolding machine body, and waste gas collection units respectively located at each furnace body side door; the waste gas collection unit comprises a fixed gas collecting hood arranged above the furnace body side door, a mobile gas collecting hood installed in the middle area of the furnace body side door surface, and a waste gas conveying pipeline arranged above the furnace body side door, and the fixed gas collecting hood and the mobile gas collecting hood are both connected to the waste gas conveying pipeline.
[0006] According to the above technical solution, preferably, the furnace side door includes two door panels arranged opposite to each other.
[0007] According to the above technical solution, preferably, the furnace body side door is a sliding door structure, and the two door panels can slide through a guide rail to achieve the opening and closing of the furnace body side door.
[0008] According to the above technical solution, preferably, the movable gas collecting hood is installed on the door panel and can move following the opening and closing of the side door of the furnace body.
[0009] According to the above technical solution, preferably, the mobile gas collecting hood includes gas collecting half-hoods respectively located on two door panels, and when the side door of the furnace body is closed, the two gas collecting half-hoods are relatively buckled to form a mobile gas collecting hood, one of the gas collecting half-hoods is connected to an air supply pipe upward, and a first gas collecting bend is arranged on the exhaust gas conveying pipeline, and when the side door of the furnace body is closed, the upper end of the air supply pipe is located below the first gas collecting bend and is arranged close to the first gas collecting bend.
[0010] According to the above technical solution, preferably, the fixed type gas collecting hood includes a high-concentration point gas collecting hood and a low-concentration point gas collecting hood located on both sides of the high-concentration point gas collecting hood, and the high-concentration point gas collecting hood and the low-concentration point gas collecting hood are respectively connected to the exhaust gas conveying pipeline through the second gas collecting bend pipe.
[0011] According to the above technical solution, preferably, an inclined baffle is fixedly connected to the outer side of the fixed air collecting hood.
[0012] The beneficial effects of the utility model are:
[0013] The utility model provides a fixed gas collecting hood to absorb the organic waste gas overflowing from the door gap above the door of the rotomolding machine when the rotomolding machine is heated, and provides a movable gas collecting hood to move with the opening and closing of the door of the rotomolding machine to absorb the waste gas at the center of the door of the rotomolding machine;
[0014] The utility model has a scientific and reasonable structural design, is easy to implement, has a good waste gas collection effect, does not affect the operation of large-scale rotational molding equipment, completely collects organic waste gas into the waste gas treatment system, meets the waste gas treatment needs of plastic processing enterprises, and has a high application and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the exhaust gas generating area of the rotational molding machine in the prior art of the utility model.
[0016] Figure 2 It is a top view structural schematic diagram of the utility model.
[0017] Figure 3 It is a main structural schematic diagram of the utility model.
[0018] Figure 4 It is a side structural schematic diagram of the movable gas collecting hood part when the side door of the furnace body of the utility model is closed.
[0019] Figure 5 It is a side structural schematic diagram of the movable gas collecting hood part when the side door of the furnace body of the utility model is opened.
[0020] Figure 6 It is a schematic diagram of the top view of the high-concentration point gas collecting hood of the utility model.
[0021] Figure 7 It is a schematic diagram of the top view of the structure of the low-concentration point gas collecting hood of the utility model.
[0022] Figure 8 It is a side structural schematic diagram of the fixed gas collecting hood of the utility model.
[0023] Fig. 9 It is a schematic diagram of the top view of the structure of the mobile gas collecting hood of the utility model.
[0024] Fig.10 It is a schematic diagram of the main structure of the mobile gas collecting hood of the utility model.
[0025] In the figure: 1. Waste gas conveying pipeline; 2. Low-concentration point gas collecting hood; 3. Mobile gas collecting hood; 4. High-concentration point gas collecting hood; 5. Fixed gas collecting hood; 6. Air supply pipe; 7. First gas collecting elbow; 8. Baffle. DETAILED DESCRIPTION
[0026] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and the best embodiment. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model.
[0027] In the description of the utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the utility model.
[0028] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] As shown in the figure, the utility model includes a rotomolding machine body, furnace openings arranged on both sides of the rotomolding machine body, two sets of furnace side doors respectively located at the furnace openings on both sides of the rotomolding machine body, and exhaust gas collection units respectively located at each furnace side door. In this example, the furnace side door includes two door panels arranged opposite to each other, preferably but not limited to a sliding door structure, and the two door panels can slide through a guide rail to realize the opening and closing of the furnace side door.
[0030] The exhaust gas collection unit includes a fixed gas collecting hood 5 arranged above the side door of the furnace body, a movable gas collecting hood 3 installed in the middle area of the surface of the side door of the furnace body, and an exhaust gas conveying pipe 1 arranged above the side door of the furnace body. The fixed gas collecting hood 5 and the movable gas collecting hood 3 are both connected to the exhaust gas conveying pipe 1.
[0031] Among them, the mobile gas collecting hood 3 is installed on the door panel and can move with the opening and closing of the side door of the furnace body. The mobile gas collecting hood 3 includes gas collecting half-hoods respectively located on the two door panels. When the side door of the furnace body is closed, the two gas collecting half-hoods are relatively buckled to form a mobile gas collecting hood 3. One of the gas collecting half-hoods is connected to an air supply pipe 6 upward, and a first gas collecting bend 7 is arranged on the exhaust gas conveying pipeline 1. When the side door of the furnace body is closed, the upper end of the air supply pipe 6 is located below the first gas collecting bend 7 and is arranged close to the first gas collecting bend 7. Specifically, a φ150 galvanized pipe (air supply pipe 6) is led out from the upper end of the mobile air collecting hood 3 to the top of the rotomolding machine. A φ200 galvanized pipe (first air collecting elbow 7) is connected to the exhaust gas conveying pipeline 1 at the top of the rotomolding machine. The elbows of the φ150 galvanized pipe and the φ200 galvanized pipe are close to but not connected, so that the mobile air collecting hood 3 can move with the opening and closing of the rotomolding machine door and absorb the exhaust gas at the center of the rotomolding machine door.
[0032] At the same time, the fixed gas collecting hood 5 includes a high-concentration point gas collecting hood 4 and a low-concentration point gas collecting hood 2 located on both sides of the high-concentration point gas collecting hood 4, and the high-concentration point gas collecting hood 4 and the low-concentration point gas collecting hood 2 are respectively connected to the exhaust gas conveying pipeline 1 through the second gas collecting bend pipe. When the rotomolding machine is heated, the organic waste gas will overflow from the door gap above the door of the rotomolding machine. Therefore, the fixed gas collecting hood 5 is set on the top of the rotomolding machine and connected to the second gas collecting bend pipes of different sizes. Since the concentration at the middle point on the top of the rotomolding machine is higher than the concentration at the two side points, a high-concentration point gas collecting hood 4 is set at the middle point (in this case, two φ350 second gas collecting bend pipes are preferably used to connect to the exhaust gas conveying pipeline 1), and low-concentration point gas collecting hoods 2 are set at the two side points (in this case, three φ300, φ200, φ200 second gas collecting bend pipes are used to connect to the exhaust gas conveying pipeline 1, and the bend pipe diameter close to the high-concentration point gas collecting hood 4 is φ300). In addition, it should be noted that an inclined baffle 8 may be fixedly connected to the outside of the fixed air collecting hood 5 to reduce the suction of invalid airflow and adjust the flow rate of the air intake port.
[0033] The utility model is used to absorb the organic waste gas overflowing from the door gap above the rotomolding machine door when the rotomolding machine is heated by setting a fixed gas collecting hood, and is used to absorb the waste gas at the center of the rotomolding machine door by setting a mobile gas collecting hood to move with the opening and closing of the rotomolding machine door. The utility model has a scientific and reasonable structural design, is easy to implement, has a good waste gas collection effect, does not affect the operation of large-scale rotomolding equipment, completely collects organic waste gas into the waste gas treatment system, meets the waste gas treatment needs of plastic processing enterprises, and has a high application and promotion value.
[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. An exhaust gas collection assembly for plastic processing equipment, characterized in that: It includes a rotomolding machine body, furnace body openings arranged on both sides of the rotomolding machine body, two sets of furnace body side doors respectively located at the furnace body openings on both sides of the rotomolding machine body, and exhaust gas collection units respectively located at each furnace body side door; The exhaust gas collection unit comprises a fixed gas collecting hood (5) arranged above the furnace side door, a mobile gas collecting hood (3) installed in the middle area of the furnace side door surface, and an exhaust gas conveying pipeline (1) arranged above the furnace side door, wherein the fixed gas collecting hood (5) and the mobile gas collecting hood (3) are both connected to the exhaust gas conveying pipeline (1).
2. The waste gas collection assembly for plastic processing equipment according to claim 1, characterized in that: The furnace body side door comprises two door panels which are arranged opposite to each other.
3. The waste gas collection assembly for plastic processing equipment according to claim 2, characterized in that: The furnace body side door is a sliding door structure, and the two door panels can slide through the guide rail to realize the opening and closing of the furnace body side door.
4. The waste gas collection assembly for plastic processing equipment according to claim 2 or 3, characterized in that: The movable gas collecting hood (3) is installed on the door panel and can move along with the opening and closing of the furnace body side door.
5. The waste gas collection assembly for plastic processing equipment according to claim 4, characterized in that: The movable gas collecting hood (3) comprises gas collecting half hoods respectively located on two door panels. When the furnace side door is closed, the two gas collecting half hoods are buckled relative to each other to form the movable gas collecting hood (3). One of the gas collecting half-hoods is connected upwardly to an air supply pipe (6), and a first gas collecting bend pipe (7) is arranged on the exhaust gas conveying pipeline (1). When the furnace body side door is closed, the upper end of the air supply pipe (6) is located below the first gas collecting bend pipe (7) and is arranged close to the first gas collecting bend pipe (7).
6. The waste gas collection assembly for plastic processing equipment according to claim 1, characterized in that: The fixed gas collecting hood (5) comprises a high-concentration point gas collecting hood (4) and low-concentration point gas collecting hoods (2) located on both sides of the high-concentration point gas collecting hood (4). The high-concentration point gas collection hood (4) and the low-concentration point gas collection hood (2) are respectively connected to the exhaust gas conveying pipeline (1) through the second gas collection elbow.
7. The waste gas collection assembly for plastic processing equipment according to claim 1 or 6, characterized in that: An obliquely arranged baffle plate (8) is fixedly connected to the outer side of the fixed gas collecting hood (5).