Adsorption bed suitable for ethylene oxide and ethylene glycol tail gas

Abstract

The utility model relates to the technical field of adsorption beds, and discloses an adsorption bed suitable for ethylene oxide and ethylene glycol tail gas, which comprises an adsorption bed body, a connecting frame is fixedly sleeved on the periphery of the adsorption bed body close to the bottom end, a base is fixedly mounted at the bottom of the connecting frame, and a groove is formed in the bottom of the base. A moving mechanism is arranged in an inner cavity of the groove, a dismounting assembly is arranged at the position, close to the middle, of the inner cavity of the adsorption bed body and comprises an opening formed in the position, close to the middle, of the rear side of the adsorption bed body and an activated carbon filter screen movably penetrating through an inner cavity of the opening, and an arc-shaped block is fixedly installed on the rear side of the activated carbon filter screen; by arranging strong magnets, arc-shaped blocks can be magnetically attracted to the periphery of the adsorption bed body, the activated carbon filter screen is conveniently replaced and detached, the replacement efficiency of the activated carbon filter screen is improved, trapezoidal blocks fixed to the bottoms of the arc-shaped blocks slide in inner cavities of trapezoidal grooves, the activated carbon filter screen is conveniently installed, and the using effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of adsorption beds, in particular to an adsorption bed suitable for tail gas of ethylene oxide and ethylene glycol. Background Art

[0002] Ethylene oxide is referred to as EO, with the molecular formula of C2H4O. It is a toxic, harmful, flammable and explosive substance. Excessive inhalation of it will cause dizziness, confusion, nausea, breathing difficulties and other symptoms in humans. In severe cases, it will threaten human life. This substance is also destructive to the environment. Ethylene glycol is an important chemical product among ethylene industrial derivatives, second only to polyethylene and polyvinyl chloride. It has a wide range of uses. One of the most important uses is as the basic raw material for polyethylene terephthalate (PET) used to make polyester fibers, which is generally called fiber-grade ethylene glycol products.

[0003] When an adsorption bed is used in the chemical industry, an activated carbon filter is set to treat the tail gas of ethylene oxide and ethylene glycol. The activated carbon filter needs to be replaced after being used for a period of time. However, the existing activated carbon filter is installed on the adsorption bed by bolts. The outer surface of the bolts is prone to rust after long-term use, which affects the efficiency of disassembly of the activated carbon filter.

[0004] Therefore, we propose an adsorption bed suitable for ethylene oxide and ethylene glycol tail gas to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an adsorption bed suitable for ethylene oxide and ethylene glycol tail gas, so as to solve the problem proposed in the above background technology that the existing activated carbon filter is installed on the adsorption bed by bolts, and the outer surface of the bolts is easy to rust after long-term use, thereby affecting the efficiency of disassembly of the activated carbon filter.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adsorption bed suitable for ethylene oxide and ethylene glycol tail gas, comprising an adsorption bed body, a connecting frame is fixedly sleeved near the bottom end of the outer periphery of the adsorption bed body, a base is fixedly installed at the bottom of the connecting frame, a groove is opened at the bottom of the base, a moving mechanism is arranged in the inner cavity of the groove, and a disassembly component is arranged near the middle position of the inner cavity of the adsorption bed body;

[0007] The disassembly assembly includes an opening located near the middle position on the rear side of the adsorption bed body and an activated carbon filter that movably penetrates the inner cavity of the opening. An arc block is fixedly installed on the rear side of the activated carbon filter, a strong magnet is fixedly installed on the top of the arc block, and the strong magnet and the adsorption bed body are arranged in contact with each other.

[0008] Preferably, a plurality of trapezoidal blocks are fixedly mounted on the bottom of the arc-shaped block, and the trapezoidal blocks are arranged in a circular array with the bottom of the adsorption bed body as the center.

[0009] Preferably, a hollow ring is fixedly sleeved near the middle position of the outer circumference of the adsorption bed body, a plurality of trapezoidal grooves are opened on the top of the hollow ring, and the trapezoidal blocks are slidably connected in the inner cavities of adjacent trapezoidal grooves.

[0010] Preferably, the moving mechanism includes a servo motor fixedly installed on the rear side of the inner cavity of the groove near the middle position and a worm fixed on the end of the power output shaft of the servo motor, the top of the worm is meshed with a worm wheel, a threaded rod is provided through the center of one side of the worm wheel, the two ends of the threaded rod are respectively rotatably connected to the two sides of the inner cavity of the groove, the outer periphery of the threaded rod is threadedly connected with a threaded sleeve near the two ends, the bottom of the threaded sleeve is hinged with an articulated rod, the bottom end of the articulated rod is jointly hinged with a sliding plate, the sliding plate is slidably connected in the inner cavity of the groove, and universal wheels are fixedly installed near the bottom of the sliding plate near the surroundings.

[0011] Preferably, the plurality of universal wheels are arranged in a rectangular array with the bottom of the sliding plate as the center.

[0012] Preferably, a limiting block is fixedly installed on the top of the threaded sleeve, a limiting rod is provided through the inner cavity of the limiting block, and two ends of the limiting rod are fixedly connected to both sides of the inner cavity of the groove respectively.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By setting a strong magnet, the arc block can be magnetically attracted to the outer periphery of the adsorption bed body, which is convenient for replacing and disassembling the activated carbon filter and improving the replacement efficiency of the activated carbon filter. The trapezoidal block fixed at the bottom of the arc block slides in the inner cavity of the trapezoidal groove, which is convenient for installing the activated carbon filter and improves the use effect of the device.

[0015] 2. By starting the servo motor, the worm fixed on the end of the servo motor power output shaft can rotate. Under the action of the worm wheel and the threaded rod, the two threaded sleeves can move to the opposite side. Through the adjacent hinged rod, the universal wheel fixed on the sliding plate can move downward, which facilitates the movement of the adsorption bed body and reduces the carrying intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall sectional three-dimensional structure of the utility model;

[0018] Figure 3 It is a schematic diagram of a partial top-section three-dimensional structure of the base of the utility model;

[0019] Figure 4 It is a partial exploded view of the disassembled components of the utility model;

[0020] Figure 5 For the utility model Figure 3 Enlarged view of point A in the middle.

[0021] In the figure: 1. adsorption bed body; 11. hollow ring; 12. trapezoidal groove; 2. connecting frame; 3. base; 4. groove; 5. disassembly assembly; 51. opening; 52. activated carbon filter; 53. arc block; 531. trapezoidal block; 54. strong magnet; 6. moving mechanism; 61. servo motor; 62. worm; 63. worm wheel; 64. threaded rod; 65. threaded sleeve; 651. limit block; 652. limit rod; 66. hinged rod; 67. sliding plate; 68. universal wheel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figure 1-5 An adsorption bed suitable for ethylene oxide and ethylene glycol tail gas, comprising an adsorption bed body 1, a connection frame 2 is fixedly sleeved near the bottom end of the outer periphery of the adsorption bed body 1, a base 3 is fixedly installed at the bottom of the connection frame 2, a groove 4 is opened at the bottom of the base 3, a moving mechanism 6 is arranged in the inner cavity of the groove 4, and a disassembly component 5 is arranged near the middle position of the inner cavity of the adsorption bed body 1;

[0024] The disassembly component 5 includes an opening 51 opened at the rear side of the adsorption bed body 1 near the middle position and an activated carbon filter 52 that movably passes through the inner cavity of the opening 51. An arc block 53 is fixedly installed on the rear side of the activated carbon filter 52, and a strong magnet 54 is fixedly installed on the top of the arc block 53. The strong magnet 54 and the adsorption bed body 1 are arranged in contact with each other. By setting the strong magnet 54, the arc block 53 can be magnetically attracted to the outer periphery of the adsorption bed body 1, which facilitates the replacement and disassembly of the activated carbon filter 52 and improves the replacement efficiency of the activated carbon filter 52.

[0025] A plurality of trapezoidal blocks 531 are fixedly mounted on the bottom of the arc block 53 , and the trapezoidal blocks 531 are arranged in a circular array with the bottom of the adsorption bed body 1 as the center.

[0026] A hollow ring 11 is fixedly sleeved near the middle position of the outer circumference of the adsorption bed body 1, and a plurality of trapezoidal grooves 12 are opened on the top of the hollow ring 11. The trapezoidal blocks 531 are respectively slidably connected in the inner cavities of adjacent trapezoidal grooves 12. By sliding the trapezoidal blocks 531 fixed at the bottom of the arc blocks 53 in the inner cavities of the trapezoidal grooves 12, the activated carbon filter 52 is conveniently installed, thereby improving the use effect of the device.

[0027] Embodiment 2: This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 2 and Figure 3 The moving mechanism 6 includes a servo motor 61 fixedly installed at the rear side of the inner cavity of the groove 4 near the middle position and a worm 62 fixed to the end of the power output shaft of the servo motor 61. The top of the worm 62 is meshed with a worm wheel 63. A threaded rod 64 is provided at the center of one side of the worm wheel 63. The outer periphery of the threaded rod 64 is provided with opposite external threads near both ends. The two ends of the threaded rod 64 are respectively rotatably connected to the two sides of the inner cavity of the groove 4. The outer periphery of the threaded rod 64 is threadedly connected with a threaded sleeve 65 near both ends. The bottom of the threaded sleeve 65 is hinged with a hinged rod 66. The bottom end of the rod 66 is hinged with a sliding plate 67, and the sliding plate 67 is slidably connected in the inner cavity of the groove 4. Universal wheels 68 are fixedly installed near the bottom of the sliding plate 67 near the four sides. By starting the servo motor 61, the worm 62 fixed on the end of the power output shaft of the servo motor 61 can be rotated. Under the action of the worm wheel 63 and the threaded rod 64, the two threaded sleeves 65 can be moved to the opposite side. The universal wheel 68 fixed on the sliding plate 67 can be moved downward through the adjacent hinged rod 66, which facilitates the movement of the adsorption bed body 1 and reduces the carrying intensity of the staff.

[0028] A plurality of universal wheels 68 are arranged in a rectangular array with the bottom of the sliding plate 67 as the center.

[0029] A limiting block 651 is fixedly installed on the top of the threaded sleeve 65, and a limiting rod 652 is set through the inner cavity of the limiting block 651, and the two ends of the limiting rod 652 are respectively fixedly connected to the two sides of the inner cavity of the groove 4. By setting the limiting block 651 and the limiting rod 652, the threaded sleeve 65 can be limited when moving.

[0030] Working principle: When the device needs to move, the servo motor 61 is started, and the rotation of the power output shaft of the servo motor 61 drives the worm 62 fixed to the shaft end of the power output shaft of the servo motor 61 to rotate, which can then cause the worm wheel 63 meshing with it to rotate, so that the threaded rod 64 can rotate. The outer periphery of the threaded rod 64 is provided with opposite external threads near both ends. When the threaded rod 64 rotates, the threaded sleeve 65 threadedly connected to the outer periphery of the threaded rod 64 can move to the opposite side under the limit of the limit block 651 and the limit rod 652, and the sliding plate 67 is moved downward together by the hinged rod 66 hinged on the threaded sleeve 65. The universal wheel 68 fixed on the sliding plate 67 is in contact with the ground, which makes it convenient for the staff to move the adsorption bed body 1, thereby improving the flexibility of the device. After the activated carbon filter 52 has been used for a period of time, when it needs to be replaced, the arc block 53 can be directly pulled out. By setting a strong magnet 54, the arc block 53 can be magnetically attracted to the outer periphery of the adsorption bed body 1, which can facilitate the replacement and disassembly of the activated carbon filter 52, thereby improving the replacement efficiency of the activated carbon filter 52. Moreover, the trapezoidal block 531 fixed at the bottom of the arc block 53 slides in the inner cavity of the trapezoidal groove 12, thereby facilitating the installation of the activated carbon filter 52 and improving the use effect of the device.

[0031] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adsorption bed suitable for ethylene oxide and ethylene glycol tail gas, comprising an adsorption bed body (1), characterized in that: A connecting frame (2) is fixedly provided on the outer periphery of the adsorption bed body (1) near the bottom end, a base (3) is fixedly installed on the bottom of the connecting frame (2), a groove (4) is provided at the bottom of the base (3), a moving mechanism (6) is provided in the inner cavity of the groove (4), and a disassembly component (5) is provided near the middle position of the inner cavity of the adsorption bed body (1); The disassembly assembly (5) includes an opening (51) provided on the rear side of the adsorption bed body (1) near the middle position and an activated carbon filter (52) that is movable through the inner cavity of the opening (51); an arc block (53) is fixedly installed on the rear side of the activated carbon filter (52); a strong magnet (54) is fixedly installed on the top of the arc block (53); and the strong magnet (54) and the adsorption bed body (1) are arranged to fit each other.

2. The adsorption bed suitable for ethylene oxide and ethylene glycol tail gas according to claim 1, characterized in that: A plurality of trapezoidal blocks (531) are fixedly mounted on the bottom of the arc-shaped block (53), and the trapezoidal blocks (531) are arranged in a circular array with the bottom of the adsorption bed body (1) as the center.

3. The adsorption bed suitable for ethylene oxide and ethylene glycol tail gas according to claim 2, characterized in that: A hollow ring (11) is fixedly sleeved near the middle of the outer periphery of the adsorption bed body (1), and a plurality of trapezoidal grooves (12) are opened on the top of the hollow ring (11). The trapezoidal blocks (531) are respectively slidably connected in the inner cavities of adjacent trapezoidal grooves (12).

4. The adsorption bed suitable for ethylene oxide and ethylene glycol tail gas according to claim 1, characterized in that: The moving mechanism (6) includes a servo motor (61) fixedly mounted on the rear side of the inner cavity of the groove (4) near the middle position and a worm (62) fixed to the end of the power output shaft of the servo motor (61), the top of the worm (62) is meshed with a worm wheel (63), a threaded rod (64) is provided through the center of one side of the worm wheel (63), the two ends of the threaded rod (64) are respectively connected to the two sides of the inner cavity of the groove (4), the outer periphery of the threaded rod (64) is threadedly connected to a threaded sleeve (65) near both ends, the bottom of the threaded sleeve (65) is hinged to a hinged rod (66), the bottom end of the hinged rod (66) is hinged to a sliding plate (67), the sliding plate (67) is slidably connected in the inner cavity of the groove (4), and the bottom of the sliding plate (67) is fixedly mounted with a universal wheel (68) near the four sides.

5. The adsorption bed suitable for ethylene oxide and ethylene glycol tail gas according to claim 4, characterized in that: The plurality of universal wheels (68) are arranged in a rectangular array with the bottom of the sliding plate (67) as the center.

6. The adsorption bed suitable for ethylene oxide and ethylene glycol tail gas according to claim 4, characterized in that: A limiting block (651) is fixedly installed on the top of each threaded sleeve (65), a limiting rod (652) is provided through the inner cavity of the limiting block (651), and both ends of the limiting rod (652) are fixedly connected to both sides of the inner cavity of the groove (4).

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