Esterification product waste gas recovery device

Abstract

The utility model discloses a waste gas recovery device for esterification products, which belongs to the technical field of waste gas recovery equipment and comprises an esterification reaction tank, a top gas outlet of the esterification reaction tank is fixedly communicated with a suction pipe, and the other end of the suction pipe is connected to a top gas inlet of a suction pump. An air outlet in the outer side of the sucking pump is fixedly communicated with an L-shaped air supply pipe, the other end of the L-shaped air supply pipe is fixedly communicated with a fixed cylinder, the bottom end of the fixed cylinder is fixedly connected to the outer side of the esterification reaction tank through a supporting plate, and the middle of the inner side of the fixed cylinder is fixedly connected with a partition plate a; when the waste gas recovery device for the esterification products is used, waste gas generated in the esterification reaction tank is pumped into the fixed cylinder by starting the sucking pump, and the waste gas enters the cavity formed in the left side and is filtered by the filter screen on the left side due to the arrangement of the partition plate a and the partition plate b; and the purified waste gas is discharged to external equipment for recycling through a discharge pipe at the top of the gas collection hopper.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas recovery equipment, and particularly relates to an exhaust gas recovery device for esterification products. Background Art

[0002] The principle of the exhaust gas recovery device for esterification products is to extract the gas in the esterification reactor containing waste gas, recycle it after purification and treatment, so as to realize the efficient recovery and utilization of waste gas. Generally, the activated carbon adsorption method is adopted, and the organic waste gas components in the waste gas will be adsorbed and purified by the activated carbon adsorbent, so as to effectively remove the organic components in the waste gas.

[0003] The existing exhaust gas recovery device for esterification products has the following disadvantages in the use process:

[0004] Although the activated carbon filter structure is used to filter the organic components in the waste gas, the activated carbon filter structure cannot be replaced during the operation of the waste gas recovery equipment and needs to be shut down for replacement. This may lead to the phenomenon of waste gas leakage and affect the efficiency of waste gas recovery and treatment. Therefore, an exhaust gas recovery device for esterification products is needed. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an exhaust gas recovery device for esterification products to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An exhaust gas recovery device for esterification products, including an esterification reaction tank. A suction pipe is fixedly communicated at the top air outlet of the esterification reaction tank. The other end of the suction pipe is connected to the top air inlet of a suction pump. The outer air outlet of the suction pump is fixedly communicated with an L-shaped air delivery pipe. The other end of the L-shaped air delivery pipe is fixedly communicated with a fixed cylinder. The bottom end of the fixed cylinder is fixedly connected to the outside of the esterification reaction tank through a support plate. A partition a is fixedly connected to the middle part inside the fixed cylinder. A rotating sleeve is rotatably sleeved at the top of the fixed cylinder. A gas collecting hopper is movably lapped on the top of the rotating sleeve. The outer wall of the gas collecting hopper is fixedly connected to the outside of the fixed cylinder through two symmetrically arranged C-shaped plates. A discharge pipe is fixed at the top exhaust port of the gas collecting hopper. A partition b is fixedly connected to the inner wall of the gas collecting hopper. Two symmetrically arranged insertion channels are opened at the top of the fixed cylinder. A draw plate is movably inserted in each insertion channel. The cross section of each draw plate is in an I-shaped structure. A filter screen is fixedly connected in the square through hole opened on the draw plate. A locking member is connected between each draw plate and the rotating sleeve;

[0007] It further includes a rotation switching structure, which is installed on the support plate and connected to the rotating sleeve. The rotation switching structure can rotate the rotating sleeve by 180 degrees to enable the positions of the two filter screens to be replaced.

[0008] As a preferred embodiment, pull-out grooves are formed at the top edges of the two draw plates.

[0009] As a preferred embodiment, an annular sealing gasket is fixedly connected to the bottom end of the air collecting hopper. The bottom of the annular sealing gasket is movably attached to the top end of the rotating sleeve, and the top end of the rotating sleeve is flush with the top end of the draw plate.

[0010] As a preferred embodiment, the locking member includes a threaded hole formed in the rotating sleeve. The insertion channel is in communication with the outside through the threaded hole, and a hand-tightening screw is threadedly connected in the threaded hole. The end of the hand-tightening screw after being locked will press against the outside of the draw plate.

[0011] As a preferred embodiment, the rotation switching structure includes a toothed ring fixedly connected to the outside of the rotating sleeve, and a gear is meshed and connected to the outside of the toothed ring.

[0012] As a preferred embodiment, the gear is fixedly connected to the output shaft of the motor, and the motor is fixedly connected to the support plate.

[0013] Compared with the prior art, the esterification product waste gas recovery device provided by the present invention has at least the following beneficial effects:

[0014] In the present invention, when using the esterification product waste gas recovery device, after the air extraction pump is started, the waste gas generated in the esterification reaction tank is extracted into the fixed cylinder. Due to the arrangement of partition plate a and partition plate b, the waste gas enters the cavity formed on the left side and is filtered by the filter screen on the left side. Then, the purified waste gas is discharged to external equipment for recycling through the discharge pipe at the top of the air collecting hopper. When it is necessary to replace the filter screen on the left side, the motor can be started, so that the gear rotates the toothed ring, thereby driving the rotating sleeve to drive the two draw plates to rotate 180 degrees, so that the positions of the two filter screens are swapped. At this time, the filter screen on the right side can be quickly replaced. When it is necessary to replace the filter screen on the left side that needs to be replaced, the corresponding hand-tightening screw can be loosened, and with the arrangement of the pull-out groove, the draw plate can be quickly pulled out from the insertion channel, so as to replace the filter screen on the left side, so as to achieve the purpose of replacing the filter screen structure without shutting down the recycling equipment, greatly improving the recycling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall three-dimensional first perspective structure schematic diagram of the present invention;

[0016] Figure 2 is the overall three-dimensional second perspective structure schematic diagram of the present invention;

[0017] Figure 3 is the overall three-dimensional third perspective structure schematic diagram of the present invention;

[0018] Figure 4 This is the three-dimensional structure schematic diagram of the inner side of the air collecting hopper of the present utility model when viewed from below.

[0019] In the figure: 1. Esterification reaction tank; 2. Exhaust pipe; 3. Exhaust pump; 31. L-shaped air supply pipe; 32. Support plate; 4. Fixed cylinder; 41. C-shaped plate; 42. Rotating sleeve; 43. Air collecting hopper; 431. Annular gasket; 432. Partition b; 44. Discharge pipe; 45. Pulling plate; 451. Insertion channel; 46. Filter screen; 47. Pulling groove; 48. Hand-tightening screw; 49. Partition a; 5. Rotating switching structure; 51. Gear ring; 52. Gear; 53. Motor. Specific embodiments

[0020] The following further describes the present utility model in conjunction with embodiments.

[0021] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present utility model in conjunction with the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement of the method of the present utility model under the premise of the concept of the present utility model belongs to the protection scope required by the present utility model.

[0023] Embodiment

[0024] Although the activated carbon filter screen 46 structure is used to filter the organic components in the waste gas, during the operation of the waste gas recovery equipment, the activated carbon filter screen 46 structure cannot be replaced and needs to be shut down for replacement, which may lead to the phenomenon of waste gas leakage and affect the efficiency of waste gas recovery and treatment;

[0025] For this reason, please refer to Figures 1-4, the present utility model provides an exhaust gas recovery device for esterification products, comprising: an esterification reaction tank 1, a suction pipe 2 is fixedly communicated at the top air outlet of the esterification reaction tank 1, the other end of the suction pipe 2 is connected to the top air inlet of an air suction pump 3, an L-shaped air delivery pipe 31 is fixedly communicated at the outer air outlet of the air suction pump 3, the other end of the L-shaped air delivery pipe 31 is fixedly communicated with a fixed cylinder 4, the bottom end of the fixed cylinder 4 is fixedly connected to the outside of the esterification reaction tank 1 through a support plate 32, a partition a49 is fixedly connected to the middle part inside the fixed cylinder 4, a rotating sleeve 42 is rotatably sleeved on the top of the fixed cylinder 4, a gas collecting hopper 43 is movably lapped on the top of the rotating sleeve 42, the outer side wall of the gas collecting hopper 43 is fixedly connected to the outside of the fixed cylinder 4 through two symmetrically arranged C-shaped plates 41, a discharge pipe 44 is fixed at the top exhaust port of the gas collecting hopper 43, a partition b432 is fixedly connected to the inner wall of the gas collecting hopper 43, two symmetrically arranged insertion channels 451 are opened at the top of the fixed cylinder 4, a draw plate 45 is movably inserted in each of the insertion channels 451, the vertical cross-section of the draw plate 45 is in an I-shaped structure, a filter screen 46 is fixedly connected in the square through-hole opened on the draw plate 45, and a locking member is connected between each draw plate 45 and the rotating sleeve 42;

[0026] It further includes a rotation switching structure 5, which is installed on the support plate 32 and is connected to the rotating sleeve 42. The rotation switching structure 5 can rotate the rotating sleeve 42 by 180 degrees, so that the positions of the two filter screens 46 can be replaced.

[0027] The bottom end of the partition b432 is movably attached to the middle part of the top end of the rotating sleeve 42. The left side of the partition b432 forms an exhaust cavity with the inside of the gas collecting hopper. The right side of the partition b432 is closed with the inside of the gas collecting hopper, so that the purified exhaust gas will not enter. The filter screen 46 is an activated carbon filter screen 46.

[0028] Further, as Figures 1-4 shown, specifically, pull-out grooves 47 are opened at the top edges of the two draw plates 45.

[0029] Further, as Figures 1-4 shown, specifically, an annular sealing gasket 431 is fixedly connected to the bottom end of the gas collecting hopper 43. The bottom of the annular sealing gasket 431 is movably attached to the top end of the rotating sleeve 42, and the top end of the rotating sleeve 42 is flush with the top end of the draw plate 45.

[0030] Further, as Figures 1-4 shown, specifically, in order to lock the draw plate 45 in the insertion channel 451, the locking member is provided to include a screw hole opened on the rotating sleeve 42. The insertion channel 451 is communicated with the outside through the screw hole, and a hand-tightening screw 48 is threadedly connected in the screw hole. The end of the hand-tightening screw 48 after being locked will press against the outside of the draw plate 45.

[0031] Further, as Figures 1-4As shown, it is worth specifically noting that in order to be able to rotate the positions of the two filter meshes 46 by 180 degrees for replacement, a rotation switching structure 5 is provided, which includes a gear ring 51 fixedly connected to the outside of the rotating sleeve 42. A gear 52 is meshed and connected to the outside of the gear ring 51. The gear 52 is fixedly connected to the output shaft of the motor 53, and the motor 53 is fixedly connected to the support plate 32.

[0032] In summary, when using this waste gas recovery device for esterification products, after the air extraction pump 3 is started, the waste gas generated during the esterification reaction in the esterification reaction tank 1 is extracted into the fixed cylinder 4. Due to the settings of the partition plate a 49 and the partition plate b 432, the waste gas enters the cavity formed on the left side and is filtered by the filter mesh 46 on the left side. Then, the purified waste gas is discharged through the discharge pipe 44 at the top of the air collecting hopper 43 to external equipment for recycling. When it is necessary to replace the filter mesh 46 on the left side, the motor 53 can be started, causing the gear 52 to rotate the gear ring 51, thereby causing the rotating sleeve 42 to drive the two extraction plates 45 to rotate by 180 degrees, so that the positions of the two filter meshes 46 are swapped. At this time, the filter mesh 46 on the right side can promptly take over. When it is necessary to replace the filter mesh 46 that needs to be replaced on the left side as described above, the corresponding hand-tightening screw 48 can be loosened, and with the setting of the pulling-out groove 47, the extraction plate 45 can be quickly pulled out from the insertion channel 451, facilitating the replacement of the filter mesh 46 on the left side as described above, so as to achieve the purpose of replacing the filter mesh 46 structure without shutting down the recycling equipment, greatly improving the recycling efficiency.

[0033] Unless otherwise defined, the technical terms or scientific terms used in this utility model should have the ordinary meaning understood by those with ordinary skills in the field to which this utility model belongs. The words such as "including" or "comprising" used in this utility model mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The words such as "connected" or "coupled" do not limit to physical or mechanical connections, and can also include electrical connections, whether direct or indirect. The words such as "upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0034] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas recovery device for esterification products, comprising an esterification reaction tank (1), characterized in that, At the top air outlet of the esterification reaction tank (1), an air extraction pipe (2) is fixedly connected. The other end of the air extraction pipe (2) is connected to the top air inlet of an air extraction pump (3). At the outer air outlet of the air extraction pump (3), an L-shaped air delivery pipe (31) is fixedly connected. The other end of the L-shaped air delivery pipe (31) is fixedly connected to a fixed cylinder (4). The bottom end of the fixed cylinder (4) is fixedly connected to the outside of the esterification reaction tank (1) through a support plate (32). In the middle of the inner side of the fixed cylinder (4), a partition plate a (49) is fixedly connected. A rotating sleeve (42) is rotatably sleeved on the top of the fixed cylinder (4). A gas collecting hopper (43) is movably lapped on the top of the rotating sleeve (42). The outer side wall of the gas collecting hopper (43) is fixedly connected to the outside of the fixed cylinder (4) through two symmetrically arranged C-shaped plates (41). At the top exhaust port of the gas collecting hopper (43), a discharge pipe (44) is fixed. A partition plate b (432) is fixedly connected to the inner wall of the gas collecting hopper (43). Two symmetrically arranged insertion channels (451) are opened at the top of the fixed cylinder (4). In the insertion channels (451), extraction plates (45) are movably inserted. The cross-section of each extraction plate (45) is in an I-shaped structure. Filter meshes (46) are fixedly connected in the square through holes opened on the extraction plates (45). A locking member is connected between each extraction plate (45) and the rotating sleeve (42); It further includes a rotation switching structure (5), which is installed on the support plate (32) and is connected to the rotating sleeve (42). The rotation switching structure (5) can rotate the rotating sleeve (42) by 180 degrees, so that the positions of the two filter meshes (46) can be replaced.

2. The waste gas recovery device for an esterification product according to claim 1, wherein: Pull-out grooves (47) are opened at the top edges of the two extraction plates (45).

3. The waste gas recovery device for esterification products according to claim 1, characterized in that: An annular sealing gasket (431) is fixedly connected to the bottom end of the gas collecting hopper (43). The bottom of the annular sealing gasket (431) is movably attached to the top end of the rotating sleeve (42). The top end of the rotating sleeve (42) is flush with the top end of the extraction plate (45).

4. An exhaust gas recovery device for an esterification product according to claim 1, characterized in that: The locking member includes a screw hole opened on the rotating sleeve (42). The insertion channel (451) is communicated with the outside through the screw hole. A hand-tightening screw (48) is threadedly connected in the screw hole. The end of the hand-tightening screw (48) after being locked will abut against the outside of the extraction plate (45).

5. The waste gas recovery device for an esterification product according to claim 1, characterized in that: The rotation switching structure (5) includes a gear ring (51) fixedly connected to the outside of the rotating sleeve (42). A gear (52) is meshed and connected to the outside of the gear ring (51).

6. The waste gas recovery device for esterification products according to claim 5, characterized in that: The gear (52) is fixedly connected to the output shaft of a motor (53). The motor (53) is fixedly connected to the support plate (32).

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