Waste gas treatment device for polyethylene production

Abstract

The utility model relates to the technical field of polyethylene production, and discloses a waste gas treatment device for polyethylene production, which comprises an annular shell, a sleeve is fixed on one side of the annular shell, the sleeve is sleeved at one end of an exhaust pipe, a fixing mechanism is arranged between the sleeve and the exhaust pipe, an inner shell is placed in the annular shell, and the inner shell is fixed on the annular shell. An opening is formed in the side wall of the inner shell, and connecting mechanisms are arranged between the two sides of the inner shell and the annular shell. According to the waste gas treatment device, the waste gas treatment device is fixed on the exhaust pipe through the fixing mechanism, and when waste gas exhausted from the exhaust pipe enters the main shell, harmful substances in the waste gas can be filtered and adsorbed through the activated carbon filter screens placed in the inner shell.

Description

Technical Field

[0001] The utility model relates to the technical field of polyethylene production, and more specifically, to a waste gas treatment device for polyethylene production. Background Art

[0002] Waste gas is indeed produced during the polyethylene production process, and these waste gases mainly come from several aspects:

[0003] 1. Heating process: During polyethylene blow molding, extrusion, and other molding processes, heating causes certain components in the polyethylene raw material to volatilize, forming waste gas. These waste gases may contain organic matter and other compounds, such as light hydrocarbons.

[0004] 2. Reaction by-products: During the synthesis process of polyethylene, some by-products may be produced, such as a small amount of monomer residues, solvents, etc. These substances may also become part of the waste gas.

[0005] 3. Additive volatilization: In order to improve the performance of polyethylene, various additives such as stabilizers and antioxidants are often added during production. Under heating conditions, some additives may volatilize into the air and become part of the exhaust gas.

[0006] If these waste gases are discharged directly without treatment, they may have a negative impact on the environment and human health. Therefore, the waste gases generated during the polyethylene production process need to be effectively treated to reduce their impact on the environment. Currently, the adsorption method is used: activated carbon filters are used to absorb harmful substances in the waste gases. Since the activated carbon filters need to be replaced regularly to ensure the filtration effect, the existing activated carbon filters are fixed in the waste gas treatment device with bolts, which is inconvenient when they need to be replaced. For this reason, we have proposed a waste gas treatment device for polyethylene production. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the present invention provides a waste gas treatment device for polyethylene production to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a waste gas treatment device for polyethylene production, comprising an annular shell, a sleeve fixed to one side of the annular shell, the sleeve being sleeved on one end of the exhaust pipe, and a fixing mechanism being provided between the sleeve and the exhaust pipe, an inner shell being placed in the annular shell, an opening being provided on the side wall of the inner shell, a connecting mechanism being provided between both sides of the inner shell and the annular shell, a plurality of activated carbon filters and a plurality of plate partitions being placed at intervals in the inner shell, an annular baffle being placed on one side of one of the activated carbon filters, and a limiting mechanism being provided between both sides of the annular baffle and the inner shell.

[0009] As an optimal technical solution of the present invention, the fixing mechanism includes an upper annular plate and a lower annular plate, the lower annular plate is fixed outside the exhaust pipe, the upper annular plate is fixed outside the sleeve, and the upper annular plate is placed on one side of the lower annular plate, and multiple bolts are connected between the upper annular plate and the lower annular plate.

[0010] As an optimal technical solution of the present invention, the connecting mechanism includes an insert plate and a slot, the slot is opened on both sides of the annular shell, the insert plate is fixed on both sides of the side wall of the annular baffle, and the insert plate passes through the slot and extends outward, and a rotation limiting mechanism is provided between the insert plate and the annular shell.

[0011] As an optimal technical solution of the present utility model, the rotation limiting mechanism includes a side plate and a rectangular hole, the side plate is fixed to the side wall of the annular shell on one side of the slot, the rectangular hole is opened on one side of the plug-in plate, a side rod is fixed on one side of the side plate, one end of the side rod is inserted into the rectangular hole, a rectangular rotating plate is placed on the side wall of the plug-in plate on one side of the rectangular hole, an elastic pad is fixed to the bottom of the rectangular rotating plate, and the rectangular rotating plate is rotatably connected to one end of the side rod.

[0012] As an optimal technical solution of the present invention, the limiting mechanism includes an annular slot and a groove, the annular slot is opened on the inner wall of the inner shell, the groove is opened on both sides of the annular baffle, a limiting plate is arranged in the groove, one end of the limiting plate is inserted in the annular slot, the other end of the limiting plate is fixed with a spring, one end of the spring is fixed to the bottom of the groove, a sliding hole is opened on the side wall of the groove, a pull plate is fixed on one side of the limiting plate, and one end of the pull plate passes through the sliding hole and extends outward.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model fixes the exhaust gas treatment device on the exhaust pipe through a fixing mechanism. When the exhaust gas discharged from the exhaust pipe enters the annular shell, the multiple activated carbon filters placed in the inner shell can filter and adsorb harmful substances in the exhaust gas.

[0015] 2. The utility model can limit the activated carbon filter by the annular baffle, and the annular baffle can be limited by the limiting mechanism. When the activated carbon filter in the inner shell needs to be replaced, it is only necessary to remove the annular baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a waste gas treatment device for polyethylene production according to the utility model;

[0017] Figure 2 This is a schematic top view of the structure of a waste gas treatment device for polyethylene production according to the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a rotation limiting mechanism of a waste gas treatment device for polyethylene production according to the utility model;

[0019] Figure 4 This is a schematic structural diagram of a limiting mechanism of a waste gas treatment device for polyethylene production according to the present utility model.

[0020] In the figure: 1. annular shell; 2. sleeve; 3. upper annular plate; 4. lower annular plate; 5. bolt; 6. rotation limiting mechanism; 61. side plate; 62. rectangular hole; 63. side rod; 64. rectangular rotating plate; 65. elastic pad; 7. plug-in plate; 8. slot; 9. limiting mechanism; 91. annular slot; 92. groove; 93. limiting plate; 94. spring; 95. sliding hole; 96. pull plate; 10. inner shell; 11. opening; 12. annular baffle; 13. activated carbon filter; 14. plate partition. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1 to 4 As shown, the utility model provides a waste gas treatment device for polyethylene production, including an annular shell 1, a sleeve 2 is fixed on one side of the annular shell 1, the sleeve 2 is sleeved on one end of the exhaust pipe, a sealing gasket is fixed on the inner wall of the sleeve 2, and a fixing mechanism is provided between the sleeve 2 and the exhaust pipe, and the device can be fixed to the exhaust pipe through the fixing mechanism, an inner shell 10 is placed in the annular shell 1, an opening 11 is opened on the side wall of the inner shell 10, and a connecting mechanism is provided between both sides of the inner shell 10 and the annular shell 1, and the inner shell 10 can be limited by the connecting mechanism, a plurality of activated carbon filters 13 and a plurality of plate partitions 14 are placed in the inner shell 10 at intervals, an annular baffle 12 is placed on one side of one of the activated carbon filters 13, and a limiting mechanism 9 is provided between both sides of the annular baffle 12 and the inner shell 10, the annular baffle 12 can be limited by the limiting mechanism 9, and harmful substances in the exhaust gas can be filtered and adsorbed through the multiple activated carbon filters 13.

[0023] Among them, the fixing mechanism includes an upper annular plate 3 and a lower annular plate 4, the lower annular plate 4 is fixed outside the exhaust pipe, the upper annular plate 3 is fixed outside the sleeve 2, and the upper annular plate 3 is placed on one side of the lower annular plate 4, and a plurality of bolts 5 are connected between the upper annular plate 3 and the lower annular plate 4. The device can be installed on the exhaust pipe by the plurality of bolts 5 connected between the upper annular plate 3 and the lower annular plate 4. When the device needs to be disassembled, it is only necessary to remove the plurality of bolts 5.

[0024] Among them, the connecting mechanism includes an insert plate 7 and a slot 8. The slot 8 is opened on both sides of the annular shell 1. The insert plate 7 is fixed on both sides of the side walls of the annular baffle 12, and the insert plate 7 passes through the slot 8 and extends outward. A rotation limiting mechanism 6 is provided between the insert plate 7 and the annular shell 1, and the insert plate 7 can be limited by the rotation limiting mechanism 6.

[0025] Among them, the rotation limiting mechanism 6 includes a side plate 61 and a rectangular hole 62. The side plate 61 is fixed to the side wall of the annular shell 1 on one side of the slot 8. The rectangular hole 62 is opened on one side of the plug plate 7. A side rod 63 is fixed on one side of the side plate 61. One end of the side rod 63 is inserted into the rectangular hole 62. A rectangular rotating plate 64 is placed on the side wall of the plug plate 7 on one side of the rectangular hole 62. An elastic pad 65 is fixed to the bottom of the rectangular rotating plate 64, and the rectangular rotating plate 64 is rotatably connected to one end of the side rod 63. By placing the rectangular rotating plate 64 on one side of the plug plate 7, the plug plate 7 can be limited. When the inner shell 10 needs to be removed from the annular shell 1, it is only necessary to rotate the rectangular rotating plate 64 ninety degrees, and then pull the plug plate 7 to pull the rectangular rotating plate 64 out of the rectangular hole 62.

[0026] Among them, the limiting mechanism 9 includes an annular slot 91 and a groove 92. The annular slot 91 is opened on the inner wall of the inner shell 10, and the groove 92 is opened on both sides of the annular baffle 12. A limiting plate 93 is arranged in the groove 92, and one end of the limiting plate 93 is inserted into the annular slot 91. By inserting one end of the limiting plate 93 into the annular slot 91, the annular baffle 12 can be limited. A spring 94 is fixed to the other end of the limiting plate 93, and one end of the spring 94 is fixed to the bottom of the groove 92. A sliding hole 95 is opened on the side wall of the groove 92, and a pull plate 96 is fixed to one side of the limiting plate 93. One end of the pull plate 96 passes through the sliding hole 95 and extends outward. When the annular baffle 12 needs to be disassembled, it is only necessary to pull the pull plate 96 to pull one end of the limiting plate 93 out of the annular slot 91 to remove the annular baffle 12 from the inner shell 10.

[0027] The working principle and usage process of the present invention are as follows: the exhaust gas treatment device is fixed on the exhaust pipe through a fixing mechanism. When the exhaust gas discharged from the exhaust pipe enters the annular shell 1, the harmful substances in the exhaust gas can be filtered and adsorbed through the multiple activated carbon filters 13 placed in the inner shell 10. When the activated carbon filter 13 in the inner shell 10 needs to be replaced, it is only necessary to pull the pull plate 96 to pull one end of the limit plate 93 out of the annular slot 91, and then remove the annular baffle 12, so that the activated carbon filter 13 in the inner shell 10 can be replaced.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste gas treatment device for polyethylene production, comprising an annular housing (1), characterized in that: A sleeve (2) is fixed on one side of the annular shell (1), the sleeve (2) is sleeved on one end of the exhaust pipe, and a fixing mechanism is provided between the sleeve (2) and the exhaust pipe. An inner shell (10) is placed in the annular shell (1), an opening (11) is provided on the side wall of the inner shell (10), and connecting mechanisms are provided between both sides of the inner shell (10) and the annular shell (1). A plurality of activated carbon filters (13) and a plurality of shaped plate partitions (14) are placed in the inner shell (10) at intervals, an annular baffle (12) is placed on one side of one of the activated carbon filters (13), and limiting mechanisms (9) are provided between both sides of the annular baffle (12) and the inner shell (10).

2. The waste gas treatment device for polyethylene production according to claim 1, characterized in that: The fixing mechanism comprises an upper annular plate (3) and a lower annular plate (4), wherein the lower annular plate (4) is fixed outside the exhaust pipe, and the upper annular plate (3) is fixed outside the sleeve (2), and the upper annular plate (3) is placed on one side of the lower annular plate (4), and a plurality of bolts (5) are connected between the upper annular plate (3) and the lower annular plate (4).

3. The waste gas treatment device for polyethylene production according to claim 1, characterized in that: The connecting mechanism comprises an insert plate (7) and a slot (8), wherein the slot (8) is provided on both sides of the annular housing (1), the insert plate (7) is fixed on both sides of the side walls of the annular baffle (12), and the insert plate (7) passes through the slot (8) and extends outward, and a rotation limiting mechanism (6) is provided between the insert plate (7) and the annular housing (1).

4. The waste gas treatment device for polyethylene production according to claim 3, characterized in that: The rotation limiting mechanism (6) comprises a side plate (61) and a rectangular hole (62); the side plate (61) is fixed to the side wall of the annular housing (1) on one side of the slot (8); the rectangular hole (62) is opened on one side of the plugging plate (7); a side rod (63) is fixed to one side of the side plate (61); one end of the side rod (63) is inserted into the rectangular hole (62); a rectangular rotating plate (64) is placed on the side wall of the plugging plate (7) on one side of the rectangular hole (62); an elastic pad (65) is fixed to the bottom of the rectangular rotating plate (64), and the rectangular rotating plate (64) is rotatably connected to one end of the side rod (63).

5. The waste gas treatment device for polyethylene production according to claim 1, characterized in that: The limiting mechanism (9) includes an annular slot (91) and a groove (92), wherein the annular slot (91) is provided on the inner wall of the inner shell (10), and the groove (92) is provided on both sides of the annular baffle (12). A limiting plate (93) is provided in the groove (92), one end of the limiting plate (93) is inserted into the annular slot (91), and a spring (94) is fixed to the other end of the limiting plate (93), one end of the spring (94) is fixed to the bottom of the groove (92), a sliding hole (95) is provided on the side wall of the groove (92), and a pull plate (96) is fixed to one side of the limiting plate (93), and one end of the pull plate (96) passes through the sliding hole (95) and extends outward.

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