Adipic acid packaging dust treatment device

Abstract

The utility model discloses an adipic acid packaging dust recycling device which comprises an air filter and a drying cooler which are sequentially connected through a pipeline, and a gas phase outlet in the drying cooler is sequentially communicated with a cyclone separator, a washing tower and an induced draft fan through a pipeline; a solid phase outlet in the drying cooler is sequentially communicated with a blanking device and a finished product packaging machine through pipelines, a packaging machine dust outlet in the finished product packaging machine is communicated with a packaging machine gas phase pipe, and the packaging machine gas phase pipe is communicated with a gas phase outlet in the drying cooler; and a solid phase outlet on the cyclone separator is communicated with the blanking device through a pipeline. The adipic acid packaging dust treatment device provided by the utility model is high in dust removal efficiency, energy-saving and environment-friendly, and effectively ensures the recovery quality of adipic acid.

Description

Technical Field

[0001] This utility model relates to the field of dust treatment technology, and in particular to a dust treatment device for adipic acid packaging. Background Technology

[0002] Adipic acid is a widely used organic chemical raw material, but adipic acid dust not only pollutes the environment, but also poses an explosion hazard. Therefore, dust removal devices are needed to remove dust during the production process, especially during the production and packaging process.

[0003] In existing technology, the dust inside the adipic acid packaging machine is mainly removed by a bag filter to remove adipic acid particles, and then pumped to the exhaust fan outlet for discharge. However, because the bag filter receives a large amount of adipic acid dust, manual cleaning is frequently required, which is both wasteful of manpower and affects the quality of adipic acid recovery. Furthermore, during the process of using a bag filter to receive adipic acid dust, some adipic acid dust inevitably escapes, causing environmental pollution; and if the filter bags are damaged, it will cause serious production hazards. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an adipic acid packaging dust treatment device, which has high dust removal efficiency, is energy-saving and environmentally friendly, and effectively ensures the quality of adipic acid recovery.

[0005] The technical solution of this utility model is:

[0006] A dust treatment device for adipic acid packaging is characterized in that it includes an air filter and a dryer / cooler connected in sequence by pipelines, and the gas phase outlet of the dryer / cooler is connected in sequence by pipelines to a cyclone separator, a scrubbing tower, and an induced draft fan.

[0007] The solid phase outlet on the dryer and cooler is connected in sequence to the feeder and the finished product packaging machine through a pipeline. The dust outlet of the finished product packaging machine is connected to the gas phase pipe of the packaging machine, and the gas phase pipe of the packaging machine is connected to the gas phase outlet on the dryer and cooler.

[0008] The solid phase outlet of the cyclone separator is connected to the feeder via a pipe.

[0009] Furthermore, the gas phase outlet on the dryer cooler is connected to the hot air chamber gas phase pipe via a pipe, the hot air chamber gas phase pipe is connected to the cold air chamber gas phase pipe via a pipe, and the cold air chamber gas phase pipe is connected to the cyclone separator via a pipe.

[0010] The packaging machine's vapor phase pipe is connected to the vapor phase outlet of the drying cooler and the vapor phase pipe of the hot air chamber.

[0011] Furthermore, the packaging machine is equipped with a gas phase pipeline gate valve on the gas phase pipeline.

[0012] Furthermore, the upper end of the cyclone separator is provided with a gas phase inlet and a gas phase outlet; the bottom of the cyclone separator is provided with a solid phase outlet.

[0013] The gas phase pipe of the cold air chamber is connected to the gas phase inlet of the cyclone separator via a pipeline, and the gas phase outlet of the cyclone separator is connected to the scrubbing tower and the induced draft fan in sequence via a pipeline.

[0014] Furthermore, the washing tower has a washing tower inlet at its lower end and a washing tower outlet at its top end; the cyclone separator gas phase outlet of the cyclone separator is connected to the washing tower inlet through a pipeline, and the washing tower outlet is connected to the induced draft fan through a pipeline.

[0015] Furthermore, the feeder is connected to several finished product bins via pipes, and the discharge port at the bottom of each finished product bin is connected to a finished product packaging machine via pipes.

[0016] Furthermore, each of the finished product packaging machines is provided with a packaging machine dust outlet, and each packaging machine dust outlet is connected to a dust gas phase pipe through a pipeline, which is connected to the packaging machine gas phase pipe.

[0017] Furthermore, the dust vapor phase pipe is connected to a buffer tank, and the upper end of the buffer tank is provided with a light dust vapor phase outlet, which is connected to the packaging machine vapor phase pipe.

[0018] Furthermore, a discharge ball valve is provided at the outlet on the bottom surface of the buffer tank.

[0019] The beneficial technical effects of this utility model are:

[0020] Firstly, it is highly efficient and ensures the quality of adipic acid recovery;

[0021] This avoids the problem of consuming a lot of manpower due to the frequent cleaning of bag filters, improves production efficiency, and reduces the quality problems of adipic acid recovery that may be caused by manual cleaning of bag filters, thus ensuring the quality of adipic acid recovery.

[0022] Secondly, energy conservation and environmental protection:

[0023] The device of this invention does not require a bag filter and an additional gas phase transfer pump, thereby reducing production costs. In addition, by introducing the dust gas produced from packaging into the gas phase outlet pipe of the dryer and cooler, the dust is effectively prevented from escaping into the atmosphere and causing pollution. Even if there are abnormalities in the pipes and other components, the direct emission of dust can be minimized.

[0024] Third, it increases production flexibility:

[0025] The packaging machine's vapor phase pipe of this utility model is equipped with a vapor phase pipeline gate valve. When this dryer / cooler stops or malfunctions, the packaging machine's vapor phase pipe can be introduced into other dryer / cooler systems to continue the treatment and recovery of dust gas produced during packaging, thereby increasing production flexibility. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0027] in:

[0028] 1. Dryer / cooler; 2. Cyclone separator; 3. Feeder; 4. Washing tower; 5. Exhaust fan; 6. Finished product silo; 9. Finished product packaging machine; 13. Air filter; 14. Hot air chamber vapor phase pipe; 15. Cold air chamber vapor phase pipe; 16. Packaging machine vapor phase pipe; 17. Buffer tank; 18. Discharge ball valve; 19. Vapor phase pipeline gate valve; 20. Dust vapor phase pipe. Detailed Implementation

[0029] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0030] like Figure 1 As shown, this utility model provides an adipic acid packaging dust treatment device for recovering and treating adipic acid dust generated during the finished product packaging process. It includes an air filter 13 and a dryer / cooler 1 connected by a pipeline. The dryer / cooler 1 has a gas phase outlet on its top surface and a solid phase outlet on one side.

[0031] The gas phase outlet on the top surface of the dryer / cooler 1 is connected to the hot air chamber gas phase pipe 14 via a pipeline. The hot air chamber gas phase pipe 14 is connected to the hot air chamber of the dryer / cooler (not shown). Hot air from the hot air chamber of the dryer / cooler is discharged from the hot air chamber gas phase pipe 14. The hot air chamber gas phase pipe 14 is connected to the cold air chamber gas phase pipe 15 via a pipeline. The cold air chamber gas phase pipe 15 is connected to the cold air chamber of the dryer / cooler (not shown). Cold air from the hot air chamber of the dryer / cooler is discharged from the cold air chamber gas phase pipe 15. Cyclone separator 2 has cyclone separator gas phase outlets at its upper end. The cyclone separator 2 has a solid phase outlet at its bottom and a gas phase inlet. The gas phase pipe 14 of the hot air chamber and the gas phase pipe 15 of the cold air chamber are connected to the gas phase inlet of the cyclone separator 2 at its top. The washing tower 4 has a washing tower inlet at its bottom and a washing tower outlet at its top. The gas phase outlet of the cyclone separator 2 at its top is connected to the washing tower inlet of the washing tower 4 through a pipe. The washing tower outlet at the top of the washing tower 4 is connected to the induced draft fan 5 through a pipe.

[0032] The feeder 3 has a feed inlet on its top surface and a discharge outlet on its bottom surface. It also has a feed inlet on the side adjacent to the dryer / cooler 1. The solid phase outlet on the side of the dryer / cooler 1 is connected to the feed inlet on one side of the feeder 3 via a pipe. The solid phase outlet at the bottom of the aforementioned cyclone separator 2 is connected to another feed inlet on the top surface of the feeder 3 via a pipe. The finished product hopper 6 has a feed inlet on its top surface and a discharge outlet on its bottom surface. The discharge outlet at the bottom of the feeder 3 is connected to the feed inlets of several finished product hoppers 6 via pipes. The discharge outlet of each finished product hopper 6 is connected to a finished product packaging machine 9 via a pipe. In this invention, there are three finished product hoppers 6, which are arranged in parallel.

[0033] Each finished product packaging machine 9 has a dust outlet on one side, and each dust outlet is connected to a dust vapor phase pipe 20 via a pipe. The buffer tank 17 has a feed inlet on one side, a light dust vapor phase outlet on its top surface, and a discharge outlet on its bottom surface. The discharge outlet of the dust vapor phase pipe 20 is connected to the feed inlet on one side of the buffer tank 17. The light dust vapor phase outlet on the top surface of the buffer tank 17 is connected to the inlet of the packaging machine vapor phase pipe 16. The outlet of the packaging machine vapor phase pipe 16 is connected to the pipe connecting the vapor phase outlet of the dryer / cooler 1 and the hot air chamber vapor phase pipe 14. A vapor phase pipeline gate valve 19 is provided at the outlet of the packaging machine vapor phase pipe 16. The discharge outlet on the bottom surface of the buffer tank 17 is connected to a discharge pipe, and a discharge ball valve 18 is provided on the discharge pipe.

[0034] The operating principle and process of this utility model are as follows:

[0035] The adipic acid material to be dried and packaged is placed in the drying cooler 1. Air enters the drying cooler 1 through the air filter 13. After the adipic acid material in the drying cooler 1 is fluidized and dried, solid adipic acid and a small amount of gaseous adipic acid dust are generated in this process.

[0036] Solid adipic acid is conveyed through feeder 3 and each finished product hopper 6 to the corresponding finished product packaging machine 9 for packaging. During the packaging process, the gas phase containing adipic acid dust generated by each finished product packaging machine 9 is conveyed through the packaging machine dust outlet on the finished product packaging machine 9 to the dust gas phase pipe 20 and the buffer tank 17 connected to the dust gas phase pipe 20. In the buffer tank 17, under its own gravity, the heavy solid adipic acid material falls to the bottom of the buffer tank 17, and the material is cleaned by opening the discharge ball valve 18 periodically. In the buffer tank 17, the light gas phase adipic acid dust is conveyed through the packaging machine gas phase pipe 16 to the pipe connected to the gas phase outlet of the drying cooler 1 and the hot air chamber gas phase pipe 14.

[0037] At the same time, the gaseous adipic acid dust output from the gas phase outlet on the top surface of the dryer cooler 1, together with the light gaseous adipic acid dust conveyed by the gas phase pipe 16 of the packaging machine, enters the hot air chamber gas phase pipe 14. The hot air from the hot air chamber of the dryer cooler is discharged from the hot air chamber gas phase pipe 14, mixes with the gaseous adipic acid dust, and then enters the cyclone separator 2 together with the cold air discharged from the cold air chamber gas phase pipe 15.

[0038] The aforementioned gaseous adipic acid dust is drawn into the cyclone separator 2 by the slight negative pressure generated by the induced draft fan 5. Due to the different centrifugal forces experienced by the solid adipic acid particles and the gas, the solid adipic acid particles, under their own gravity, are discharged from the solid phase outlet of the cyclone separator 2 into the feeder 3, thus carrying out the aforementioned solid phase adipic acid conveying process. Meanwhile, the gaseous phase at the top of the cyclone separator 2 is drawn into the scrubbing tower 4 and washed with pure water to remove dust. The gas after dust removal by pure water spraying in the scrubbing tower 4 is discharged from the system by the induced draft fan 5 from the top outlet of the scrubbing tower 4. Thus, the dust treatment process generated by the packaging process of adipic acid is completed.

[0039] In addition, if the dryer / cooler 1 stops during the above process, the gas phase line gate valve 19 is closed, and the packaging machine gas phase line 16 can be connected to another dryer / cooler system (not shown) to increase production flexibility.

[0040] Furthermore, part of the gas phase discharged from the induced draft fan 5 is collected and recycled, while the other part is vented.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A dust treatment device for adipic acid packaging, characterized in that, It includes an air filter (13) and a dryer (1) connected in sequence by pipes. The gas phase outlet of the dryer (1) is connected in sequence by pipes to a cyclone separator (2), a scrubbing tower (4), and an induced draft fan (5). The solid phase outlet on the dryer (1) is connected to the feeder (3) and the finished product packaging machine (9) in sequence through a pipe. The dust outlet of the finished product packaging machine (9) is connected to the gas phase pipe (16) of the packaging machine. The gas phase pipe (16) of the packaging machine is connected to the gas phase outlet on the dryer (1). The solid phase outlet of the cyclone separator (2) is connected to the feeder (3) via a pipeline.

2. The adipic acid packaging dust treatment device according to claim 1, characterized in that, The gas phase outlet on the dryer (1) is connected to the hot air chamber gas phase pipe (14) through a pipe. The hot air chamber gas phase pipe (14) is connected to the cold air chamber gas phase pipe (15) through a pipe. The cold air chamber gas phase pipe (15) is connected to the cyclone separator (2) through a pipe. The packaging machine vapor phase pipe (16) is connected to the pipe that connects the vapor phase outlet of the drying cooler (1) to the vapor phase pipe (14) of the hot air chamber.

3. The adipic acid packaging dust treatment device according to claim 1, characterized in that, The packaging machine is equipped with a gas phase pipeline gate valve (19) on the gas phase pipe (16).

4. The adipic acid packaging dust treatment device according to claim 2, characterized in that, The upper end of the cyclone separator (2) is provided with a gas phase inlet and a gas phase outlet; the bottom of the cyclone separator (2) is provided with a solid phase outlet. The cold air chamber gas phase pipe (15) is connected to the gas phase inlet of the cyclone separator (2) through a pipe, and the gas phase outlet of the cyclone separator (2) is connected to the washing tower (4) and the induced draft fan (5) in sequence through a pipe.

5. The adipic acid packaging dust treatment device according to claim 4, characterized in that, The washing tower (4) has a washing tower inlet at its lower end and a washing tower outlet at its top end; the cyclone separator (2) gas phase outlet is connected to the washing tower inlet through a pipeline, and the washing tower outlet is connected to the induced draft fan (5) through a pipeline.

6. The adipic acid packaging dust treatment device according to claim 1, characterized in that, The feeder (3) is connected to several finished product bins (6) through pipes, and the discharge port at the bottom of each finished product bin is connected to a finished product packaging machine (9) through pipes.

7. The adipic acid packaging dust treatment device according to claim 6, characterized in that, Each of the finished product packaging machines (9) is provided with a packaging machine dust outlet. Each packaging machine dust outlet is connected to a dust gas phase pipe (20) through a pipe. The dust gas phase pipe (20) is connected to a packaging machine gas phase pipe (16).

8. The adipic acid packaging dust treatment device according to claim 7, characterized in that, The dust gas phase pipe (20) is connected to the buffer tank (17), and the upper end of the buffer tank (17) is provided with a light dust gas phase outlet, which is connected to the packaging machine gas phase pipe (16).

9. The adipic acid packaging dust treatment device according to claim 8, characterized in that, The bottom surface of the buffer tank (17) is provided with a discharge ball valve (18) at the outlet.

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