Epoxypropane pre-separation aldehyde removal device

Abstract

The utility model discloses an epoxypropane pre-separation aldehyde removal device which comprises an epoxypropane storage tank, the bottom end of the epoxypropane storage tank is communicated with a bottom end funnel, epoxypropane is placed in the epoxypropane storage tank, the bottom end funnel is communicated with a first pipeline, and the first pipeline is communicated with a second pipeline. The middle section of the first pipeline is communicated with an epoxypropane conveying pump; the lower end of the second sealing cover plate is fixedly connected with a stirring motor, the output end of the stirring motor is fixedly connected with a rotating shaft, and the outer end of the rotating shaft is fixedly connected with stirring blades; and the front end of the waste gas processing box communicates with an exhaust hole, and activated carbon is fixedly connected into the waste gas processing box. The stirring motor is arranged to drive the rotating shaft and the stirring blades to rotate, so that the epoxypropane and the formaldehyde removal agent are fully mixed, and the formaldehyde removal effect is improved. A waste gas processing box is arranged and communicated with the waste gas processing box through a third pipeline, so that the waste gas is in full contact with activated carbon, and purification of the waste gas and recovery of hydroformates are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of epoxypropane purification, especially relates to a kind of epoxypropane preseparation aldehyde removal device. BACKGROUND

[0002] In industrial production, epoxypropane is a very important organic compound raw material, and is the third largest propylene derivative next to polypropylene and acrylonitrile. To improve the processing purity of epoxypropane, an epoxypropane preseparation aldehyde removal device is needed to achieve aldehyde removal of epoxypropane.

[0003] Generally, the epoxypropane preseparation aldehyde removal device is provided with a premixing tank and a separation tower. After the epoxypropane is fully mixed and stirred by a pump, the aldehyde removal and separation work are completed, and the purity of the epoxypropane is improved. However, this structure produces waste gas during the aldehyde removal process, and the general aldehyde removal device is not easy to efficiently treat the waste gas. Chinese patent CN202120951726.9 discloses an epoxypropane preseparation aldehyde removal device, which includes an aldehyde removal additive storage tank, a premixing tank, a mixing tank, a preseparation tower, a reboiler, an aldehyde removal additive delivery pump, an epoxidation reaction product feeding pump, a mixed liquid transfer pump, a preseparation circulating pump, pipelines, and valves. The inner cavity of the premixing tank is provided with a spray head mechanism at the upper part and a first spray pipe mechanism at the middle part. The inner cavity of the mixing tank is provided with a stirring mechanism driven by a motor. The upper part of the preseparation tower is provided with a second spray pipe mechanism. The aldehyde removal additive is uniformly added to the epoxidation reaction product by combining jetting with fine stirring. The aldehyde impurities are effectively separated from the epoxidation reaction product by combining reboiler heating with fluid jet recirculation, and the product quality is greatly improved. However, the problem of quickly and efficiently treating the waste gas is not solved. SUMMARY

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art, and provides an epoxypropane preseparation aldehyde removal device. The epoxypropane and the aldehyde removal agent are fully mixed by rotating the stirring motor-driven rotating shaft and the stirring blade, and the aldehyde removal effect is improved. The waste gas processing box is provided, and the third pipeline is connected to the waste gas processing box, so that the waste gas is fully contacted with the activated carbon, and the waste gas is purified and the aldehyde compound is recovered.

[0005] The utility model also provides with above-mentioned one kind epoxy propane pre-separation aldehyde removal device, it includes: epoxy propane storage tank, the bottom end of epoxy propane storage tank is connected with bottom end hopper, epoxy propane storage tank inside is placed with epoxy propane, the bottom end hopper is connected with first pipeline, the first pipeline middle section is connected with epoxy propane transport pump machine;Second sealing cover plate, the second sealing cover plate lower end is fixedly connected with stirring motor, the stirring motor output is fixedly connected with rotating shaft, and the rotating shaft outer end is fixedly connected with stirring vane;Waste gas processing box, the waste gas processing box front end is connected with exhaust hole, and the waste gas processing box is fixedly connected with activated carbon in the inside. Through the setting stirring motor drive rotating shaft and stirring vane rotation, realize the sufficient mixing of epoxy propane, aldehyde removal agent, improve the aldehyde removal effect. Through the setting waste gas processing box, and using third pipeline and its connection, make waste gas and activated carbon contact fully, realize the purification of waste gas and the recovery of aldehyde.

[0006] According to the utility model discloses a kind of epoxy propane pre-separation aldehyde removal device, the top of the epoxy propane storage tank is provided with first sealing cover plate, and the first sealing cover plate is fixedly connected with epoxy propane storage tank by sealing block. Realize the sealing of the storage tank of epoxy propane.

[0007] According to the utility model discloses a kind of epoxy propane pre-separation aldehyde removal device, the outer end of the epoxy propane storage tank is fixedly connected with fixed ring, and the fixed ring bottom end is fixedly connected with support rod. Realize the propane storage tank structure is fixed in corresponding position.

[0008] According to the utility model discloses a kind of epoxy propane pre-separation aldehyde removal device, the number of the support rod is four, and the support rod terminal end is fixedly connected with support base. Realize the epoxy propane storage tank structure is supported.

[0009] According to the utility model discloses a kind of epoxy propane pre-separation aldehyde removal device, the first pipeline terminal end is connected with mixed jar, and the mixed jar upper end is fixedly connected with mounting rod. Realize the separation agent storage tank is supported.

[0010] According to the utility model discloses a kind of epoxy propane pre-separation aldehyde removal device, the mounting rod terminal end is fixedly connected with separation agent storage tank, and the separation agent storage tank is connected with mixed jar by feed pipe. Realize the separation agent is sent into mixed jar inside, complete sufficient mixing stirring.

[0011] According to the utility model discloses a kind of epoxy propane pre-separation aldehyde removal device, the lower end of the second sealing cover plate is provided with stirring processing jar, and the stirring processing jar is connected with mixed jar by the fourth pipeline.

[0012] The utility model relates to an epoxy propane preseparation deacetaldehyde device, the stirring processing jar is connected with the separation jar through the second pipeline, the stirring processing jar is connected with the waste gas processing box through the third pipeline.

[0013] The utility model relates to an epoxy propane preseparation deacetaldehyde device, the bottom end hopper is provided with the valve at first pipeline connection, the valve side end is connected with the regulation knob.

[0014] The utility model relates to an epoxy propane preseparation deacetaldehyde device, the stirring processing jar middle section is fixedly connected with the partition, the partition is provided with air through -hole.

[0015] Advantageous effects

[0016] 1, compared with the prior art, the utility model relates to an epoxy propane preseparation deacetaldehyde device, and the stirring motor drive rotating shaft and stirring vane rotation are set up, realize the full mixing of epoxy propane and deacetaldehyde agent, improve the deacetaldehyde effect.

[0017] 2, compared with the prior art, the utility model relates to an epoxy propane preseparation deacetaldehyde device, and the waste gas processing box is set up, and is connected with the third pipeline, so that waste gas and active carbon are fully contacted, realize the purification of waste gas and the recovery of aldehyde compound. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further explained in connection with the drawings and examples;

[0019] Figure 1 It is the structure diagram of the utility model whole;

[0020] Figure 2 It is the structure diagram of the utility model bottom view;

[0021] Figure 3 It is the structure diagram of the utility model section;

[0022] Figure 4 It is Figure 3 It is the structure diagram of the utility model A place amplification;

[0023] Legend:

[0024] 1, support base; 2, support rod; 3, fixed ring; 4, propylene oxide storage tank; 5, sealing block; 6, first sealing cover plate; 7, bottom funnel; 8, first pipeline; 9, propylene oxide transport pump; 10, separating agent storage tank; 11, mounting rod; 12, feed pipe; 13, mixing tank; 14, stirring processing tank; 15, second sealing cover plate; 16, second pipeline; 17, separation tank; 18, third pipeline; 19, waste gas processing box; 20, exhaust hole; 21, valve; 22, control knob; 23, stirring motor; 24, rotating shaft; 25, stirring blade; 26, partition plate; 27, activated carbon; 28, fourth pipeline. DETAILED DESCRIPTION

[0025] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0026] Reference Figures 1-4 , the propylene oxide pre-separation and aldehyde removal device of the embodiment includes: a propylene oxide storage tank 4, which realizes the storage of propylene oxide. The bottom end of the propylene oxide storage tank 4 is connected with a bottom funnel 7, and the propylene oxide storage tank 4 is placed with propylene oxide inside. The bottom funnel 7 is connected with a first pipeline 8, which realizes the delivery of propylene oxide to the corresponding position. The middle section of the first pipeline 8 is connected with a propylene oxide transport pump 9; which provides power for the delivery of propylene oxide. The valve 21 is arranged at the connection between the bottom funnel 7 and the first pipeline 8, and the control knob 22 is connected with the side end of the valve 21. The delivery flow of propylene oxide is controlled. The end of the first pipeline 8 is connected with the mixing tank 13, and the upper end of the mixing tank 13 is fixedly connected with the mounting rod 11. The end of the mounting rod 11 is fixedly connected with the separating agent storage tank 10, and the separating agent storage tank 10 is connected with the mixing tank 13 through the feed pipe 12. The separating agent is delivered to the inside of the mixing tank 13.

[0027] The second sealing cover plate 15 is fixedly connected with the stirring motor 23 at the lower end, the output end of the stirring motor 23 is fixedly connected with the rotating shaft 24, and the outer end of the rotating shaft 24 is fixedly connected with the stirring blade 25; the second sealing cover plate 15 is provided with the stirring processing tank 14 at the lower end, and the stirring processing tank 14 is connected with the mixing tank 13 through the fourth pipeline 28. The stirring processing tank 14 is connected with the separation tank 17 through the second pipeline 16, and the stirring processing tank 14 is connected with the waste gas processing box 19 through the third pipeline 18. The stirring processing tank 14 is fixedly connected with the partition plate 26 in the middle section, and the partition plate 26 is provided with air holes. The waste gas processing box 19 is connected with the exhaust hole 20 at the front end, and the waste gas processing box 19 is fixedly connected with the activated carbon 27 inside.

[0028] The top end of the propylene oxide storage tank 4 is provided with a first sealing cover plate 6, and the first sealing cover plate 6 is fixedly connected with the propylene oxide storage tank 4 through a sealing block 5. The outer end of the propylene oxide storage tank 4 is fixedly connected with a fixing ring 3, and the bottom end of the fixing ring 3 is fixedly connected with a supporting rod 2. The number of the supporting rods 2 is four, and the distal end of the supporting rod 2 is fixedly connected with a supporting base 1. The structure of the propylene oxide storage tank 4 is supported.

[0029] Working principle: when the structure is used, the valve 21 is started, the propylene oxide transport pump machine 9 is started, the propylene oxide in the propylene oxide storage tank 4 is sent into the mixing tank 13 through the first pipeline 8.

[0030] Then the separating agent in the separating agent storage tank 10 is sent into the mixing tank 13, and then the stirring motor 23 is started, the stirring blade 25 is driven to rotate through the rotating shaft 24, and the full stirring and de-aldehyde work of the propylene oxide are completed.

[0031] The waste gas generated by de-aldehyde is sent into the waste gas processing box 19 through the air through hole in the partition plate through the third pipeline 18, is adsorbed through the activated carbon 27, is discharged from the exhaust hole 21, and the waste gas purification and recovery work is completed.

[0032] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. An isopropanol pre-separation de-aldehyde apparatus, characterized by, Include: Propylene oxide storage tank (4), the bottom end of the propylene oxide storage tank (4) is connected with the bottom funnel (7), the propylene oxide storage tank (4) is placed with propylene oxide inside, the bottom funnel (7) is connected with the first pipeline (8), the middle section of the first pipeline (8) is connected with the propylene oxide transport pump (9); The second sealing cover plate (15) is fixedly connected with the stirring motor (23) at the lower end, the output end of the stirring motor (23) is fixedly connected with the rotating shaft (24), and the outer end of the rotating shaft (24) is fixedly connected with the stirring blade (25); The exhaust gas processing box (19) is provided with an exhaust hole (20) at the front end, and the exhaust gas processing box (19) is fixedly connected with activated carbon (27) inside.

2. An epoxy propanes pre-separation de-aldehyde device according to claim 1, characterized in that, The top end of the propylene oxide storage tank (4) is provided with a first sealing cover plate (6), and the first sealing cover plate (6) is fixedly connected with the propylene oxide storage tank (4) through a sealing block (5).

3. The propylene oxide pre-separation de-aldehyde device of claim 1, wherein, The outer end of the propylene oxide storage tank (4) is fixedly connected with a fixed ring (3), and the bottom end of the fixed ring (3) is fixedly connected with a support rod (2).

4. An epoxy propanes pre-separation de-aldehyde device according to claim 3, characterized in that, The number of support rods (2) is four, and the support rods (2) are fixedly connected with support bases (1) at the ends.

5. The propylene oxide pre-separation de- acetal device of claim 1, wherein, The end of the first pipeline (8) is connected with the mixing tank (13), and the upper end of the mixing tank (13) is fixedly connected with the mounting rod (11).

6. An epoxy propanes pre-separation de-aldehyde device according to claim 5, characterized in that, The end of the mounting rod (11) is fixedly connected with the separating agent storage tank (10), and the separating agent storage tank (10) is connected with the mixing tank (13) through the feed pipe (12).

7. The propylene oxide pre-separation de- acetal device of claim 1, wherein, The lower end of the second sealing cover plate (15) is provided with a stirring processing tank (14), and the stirring processing tank (14) is connected with the mixing tank (13) through the fourth pipeline (28).

8. An epoxy propanes pre-separation de-aldehyde device according to claim 7, characterized by, The stirring processing tank (14) is connected with the separation tank (17) through the second pipeline (16), and the stirring processing tank (14) is connected with the exhaust gas processing box (19) through the third pipeline (18).

9. The propylene oxide pre-separation de- acetal device of claim 1, wherein, The bottom funnel (7) is provided with a valve (21) at the connection with the first pipeline (8), and the side end of the valve (21) is connected with the control knob (22).

10. The propylene oxide pre-separation de- acetal device of claim 8, wherein, The middle section of the stirring processing tank (14) is fixedly connected with a partition plate (26), and the partition plate (26) is provided with an air hole.

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