Multi-stage filtration waste gas purification equipment for nitrocotton production

By designing multi-stage filtration components and a circulating purification system, the problem of poor waste gas purification effect in nitrocellulose production was solved, achieving multi-stage filtration and circulating purification, and improving the waste gas purification effect.

CN224040467UActive Publication Date: 2026-03-27NANTONG TAILIDA CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-22
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

In the production process of nitrocellulose, the existing waste gas purification equipment has poor purification effect, especially due to the short channel length, which leads to incomplete purification of volatile organic compounds.

Method used

Design a multi-stage filtration waste gas purification device for nitrocellulose production, which adopts a multi-stage filtration component and a circulation purification system, including a baffle plate, a treatment box, an activated carbon filter element and a circulation pipe, to achieve multi-stage adsorption and circulation purification of the gas.

Benefits of technology

It achieves multi-stage filtration and circulation purification of waste gas from nitrocellulose production, improving the purification effect and ensuring the effective removal of volatile organic compounds.

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Abstract

The utility model discloses multi-stage filtration waste gas purification equipment for nitrocotton production, and particularly relates to the technical field of waste gas purification equipment, the multi-stage filtration waste gas purification equipment comprises a purification box, a gas inlet pipe and an exhaust pipe, the multi-stage filtering assembly comprises a partition plate, an insertion groove, a treatment box, an end plate, an air groove, an adsorption box, a through groove, an activated carbon filter element, a fixing hole and a fixing bolt. Through the arrangement of the partition plates and the treatment boxes, the multiple sets of partition plates are distributed in the purification box, when the multiple sets of treatment boxes are inserted into the purification box along the insertion grooves for use, the partition plates are used for positioning and supporting the treatment boxes, and after gas enters the purification box along the gas inlet pipe, the gas can flow among the multiple sets of treatment boxes through the adsorption box; the activated carbon filter element is located in the treatment box, when gas passes through the treatment box, the gas can be adsorbed and purified by means of the activated carbon filter element, and the multi-stage filtering function is achieved when the waste gas purification equipment for nitrocotton production is used.
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Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas purification equipment technical field, concretely is a kind of multistage filtration's waste gas purification equipment for nitrocellulose production. BACKGROUND

[0002] Nitrocellulose production emits VOCs waste gas pollution seriously, VOCs waste gas refers to volatile organic compound gas, need to take closed management, ventilation, collection system and so on to reduce emission, and using water absorption, activated carbon adsorption, catalytic oxidation and so on Technology governs waste gas, the device is waste gas purification equipment for nitrocellulose production, and volatile organic compound gas generated is purified and handled;

[0003] When waste gas purification equipment for nitrocellulose production is purified and handled to volatile organic compound gas, by activated carbon adsorption, is influenced by its passage, if its purification passage length is shorter, then volatile organic compound gas is easily influenced Purification effect;

[0004] Therefore, a multistage filtration's waste gas purification equipment for nitrocellulose production is needed to solve the above problems. INVENTION CONTENTS

[0005] The utility model discloses a kind of multistage filtration's waste gas purification equipment for nitrocellulose production, to solve the problem that the treatment effect of waste gas purification equipment for nitrocellulose production is poor in above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of multistage filtration's waste gas purification equipment for nitrocellulose production, including purification box, intake pipe and exhaust pipe, the inside of the purification box is provided with multistage filtration component, the multistage filtration component includes baffle, slot, processing box, end plate, air slot, adsorption box, through slot, activated carbon filter element, fixed hole and fixed bolt, the inside of the purification box is installed with baffle, the right side of the purification box is provided with slot, the inboard of the slot is provided with processing box, the right side of the processing box is installed with end plate, processing box left side extends to the inside of purification box, the top end of the processing box is provided with air slot, the inside of the processing box is provided with adsorption box, the both sides of the adsorption box are provided with through slot, the inside of the adsorption box is installed with activated carbon filter element, the surface of the processing box top end is provided with fixed hole, the inside of the fixed hole is provided with fixed bolt.

[0007] As a further technical scheme of the utility model, the bottom of the right side of the purification box is installed with intake pipe, the right side of the top end of the purification box is installed with exhaust pipe.

[0008] As a further technical scheme of the utility model, the left side of the purification box is installed with circulation pipe, the inside of the circulation pipe is installed with fan.

[0009] As a further technical scheme of the utility model, the top end and the bottom end of the circulating pipe are both equipped with a connecting pipe, and the connecting pipe extends to the inside of the purification tank on the right side.

[0010] As a further technical scheme of the utility model, the partition plates are installed in the inside of the purification tank in a plurality of, and the plurality of partition plates are distributed in parallel.

[0011] As a further technical scheme of the utility model, the plurality of insertion grooves are arranged on the right side of the purification tank in equal intervals.

[0012] As a further technical scheme of the utility model, the left side of the exhaust pipe is provided with a mounting hole, the inside of the mounting hole is installed with a probe, and the right side of the probe extends to the inside of the exhaust pipe.

[0013] As a further technical scheme of the utility model, the left side of the probe is installed with a connecting line, and the left side of the connecting line is installed with a controller.

[0014] Compared with the prior art, the utility model has the beneficial effects that: by being provided with the partition plate and the treatment tank, the plurality of partition plates are distributed in the inside of the purification tank, when the plurality of treatment tanks are inserted into the inside of the purification tank along the insertion grooves for use, the partition plate supports the treatment tank for positioning, after the gas enters the inside of the purification tank along the air inlet pipe, the gas can flow among the plurality of treatment tanks through the adsorption tank, the activated carbon filter element is located in the inside of the treatment tank, when the gas passes through, the activated carbon filter element can adsorb and purify the gas, and the multi-stage filtering function of the waste gas purification equipment for nitrocellulose production is realized when in use.

[0015] By being provided with the circulating pipe, the connecting pipe is installed with a control valve, the circulating pipe is communicated with the inside space of the purification tank under the assistance of the connecting pipe, when the connecting pipe is opened and the fan in the inside of the circulating pipe is started, the purified gas at the upper position in the inside of the purification tank can enter the circulating pipe along the connecting pipe on the upper side and be transported to the bottom position in the inside of the purification tank along the connecting pipe on the lower side, so that the gas is purified again, and the circulating purification function of the waste gas purification equipment for nitrocellulose production is realized when in use.

[0016] By being provided with the probe, the mounting hole is formed in the side end of the exhaust pipe, the probe is installed on the inside of the mounting hole, and the detection end of the probe is deep into the inside of the exhaust pipe, so that the purified gas in the inside of the exhaust pipe is detected, and the detection function of the purified gas of the waste gas purification equipment for nitrocellulose production is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the structure of the utility model;

[0018] Figure 2The three-dimensional structure schematic diagram of the utility model;

[0019] Figure 3 The processing box front view sectional structure schematic diagram of the utility model;

[0020] Figure 4 The adsorption box front view sectional structure schematic diagram of the utility model;

[0021] Figure 5 The exhaust pipe front view sectional structure schematic diagram of the utility model.

[0022] In the figure: 1, purification tank; 2, air inlet pipe; 3, exhaust pipe; 4, circulating pipe; 5, fan; 6, connecting pipe; 7, partition; 8, slot; 9, processing tank; 10, end plate; 11, air slot; 12, adsorption tank; 13, through slot; 14, activated carbon filter element; 15, fixing hole; 16, fixing bolt; 17, mounting hole; 18, probe; 19, connecting wire; 20, controller. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Please refer to Figures 1-5 The utility model provides an embodiment: a kind of multistage filtration's waste gas purification equipment for nitrocellulose production, including purification tank 1, air inlet pipe 2 and exhaust pipe 3, purification tank 1 right side's bottom end is equipped with air inlet pipe 2, purification tank 1 top right side is equipped with exhaust pipe 3, the left side of purification tank 1 is equipped with circulating pipe 4, and the top end and bottom end in circulating pipe 4 inside are equipped with connecting pipe 6, and connecting pipe 6 right side extends to the inside of purification tank 1, and fan 5 is installed in the inside of circulating pipe 4;

[0025] Specifically, as Figure 1 And Figure 2 Indicated, when using, the two groups of connecting pipes 6 in the inside of circulating pipe 4 are respectively located in the air inlet end and exhaust end in the inside of purification tank 1, open control valve on connecting pipe 6 and start fan 5 in the inside of circulating pipe 4, can generate negative pressure at exhaust end, drive purified gas to re-enter air inlet end along circulating pipe 4, and re-purification treatment is carried out;

[0026] The inside of the purification box 1 is provided with a multi-stage filtering assembly, which comprises a partition plate 7, a slot 8, a treatment box 9, an end plate 10, an air slot 11, an adsorption box 12, a through slot 13, an activated carbon filter element 14, a fixing hole 15 and a fixing bolt 16. The inside of the purification box 1 is provided with a plurality of partition plates 7, which are arranged in parallel. The right side of the purification box 1 is provided with a plurality of slots 8, which are arranged at equal intervals. The inside of each slot 8 is provided with a treatment box 9. The right side of each treatment box 9 is provided with an end plate 10. The left side of each treatment box 9 extends into the inside of the purification box 1. The top end and the bottom end of each treatment box 9 are provided with an air slot 11. The inside of each treatment box 9 is provided with an adsorption box 12. The two sides of each adsorption box 12 are provided with a through slot 13. The inside of each adsorption box 12 is provided with an activated carbon filter element 14. The surface of the top end of each treatment box 9 is provided with a fixing hole 15. The inside of each fixing hole 15 is provided with a fixing bolt 16.

[0027] Specifically, as shown in Figure 1 、 Figure 3 and Figure 4 , in use, a plurality of treatment boxes 9 are inserted into the inside of the purification box 1 along the slots 8, and are combined into a multi-stage channel under the assistance of the partition plates 7. When the gas moves along the plurality of treatment boxes 9, the activated carbon filter elements 14 located in the treatment boxes 9 can assist in adsorbing and purifying the gas. Periodically, the treatment boxes 9 can be pulled out for maintenance or replacement.

[0028] The left side of the exhaust pipe 3 is provided with a mounting hole 17. The inside of the mounting hole 17 is provided with a probe 18. The right side of the probe 18 extends into the inside of the exhaust pipe 3. The left side of the probe 18 is provided with a connecting line 19. The left side of the connecting line 19 is provided with a controller 20.

[0029] Specifically, as shown in Figure 1 and Figure 5 , in use, the probe 18 is a volatile organic compound sensor. When the probe 18 is inserted into the inside of the exhaust pipe 3 along the mounting hole 17 for detection, it can assist in detecting and processing the gas discharged from the inside of the exhaust pipe 3.

[0030] Working principle: in use, a plurality of treatment boxes 9 are inserted into the inside of the purification box 1 along the slots 8, and are combined into a multi-stage channel under the assistance of the partition plates 7. After the gas enters along the air inlet pipe 2, it passes through the plurality of treatment boxes 9. The activated carbon filter elements 14 located in the treatment boxes 9 can adsorb and purify the gas. The treated gas is discharged along the exhaust pipe 3. The probe 18 is inserted into the inside of the exhaust pipe 3 along the mounting hole 17 for detection. At the same time, if the fan 5 in the circulating pipe 4 is started, the gas at the exhaust end can enter the circulating pipe 4 along the upper connecting pipe 6, and be sent to the air inlet end along the bottom connecting pipe 6 for re-purification.

[0031] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the application can be implemented in other particular forms without departing from the spirit or essential characteristics of the application. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No feature of the application is considered critical unless it is expressly stated in the claims.

Claims

1. A multi-stage filtering waste gas purification device for nitrocellulose production, comprising a purification tank (1), an air inlet pipe (2) and an air outlet pipe (3), characterized in that: The inside of the purification box (1) is provided with a multi-stage filtering assembly; The multi-stage filtering assembly comprises a partition plate (7), a slot (8), a treatment box (9), an end plate (10), an air slot (11), an adsorption box (12), a through slot (13), an activated carbon filter element (14), a fixing hole (15) and a fixing bolt (16), the inside of the purification box (1) is provided with the partition plate (7), the right side of the purification box (1) is provided with the slot (8), the inside of the slot (8) is provided with the treatment box (9), the right side of the treatment box (9) is provided with the end plate (10), the left side of the treatment box (9) extends to the inside of the purification box (1), the top end and the bottom end of the treatment box (9) are provided with the air slot (11), the inside of the treatment box (9) is provided with the adsorption box (12), the two sides of the adsorption box (12) are provided with the through slot (13), the inside of the adsorption box (12) is provided with the activated carbon filter element (14), the surface of the top end of the treatment box (9) is provided with the fixing hole (15), the inside of the fixing hole (15) is provided with the fixing bolt (16).

2. A multi-stage filtration of waste gas purification device for producing nitrocellulose according to claim 1, characterized in that: The bottom end of the right side of the purification box (1) is provided with an air inlet pipe (2), and the right side of the top end of the purification box (1) is provided with an air outlet pipe (3).

3. A multi-stage filtration of waste gas purification device for producing nitrocellulose according to claim 1, characterized in that: The left side of the purification box (1) is provided with a circulating pipe (4), and the inside of the circulating pipe (4) is provided with a fan (5).

4. A multi-stage filtering waste gas purification apparatus for producing nitrocellulose according to claim 3, characterized in that: The top end and the bottom end of the inside of the circulating pipe (4) are provided with a connecting pipe (6), and the right side of the connecting pipe (6) extends to the inside of the purification box (1).

5. A multi-stage filtration of waste gas purification device for producing nitrocellulose according to claim 1, characterized in that: The inside of the purification box (1) is provided with a plurality of partition plates (7), and the plurality of partition plates (7) are arranged in parallel.

6. A multi-stage filtration of waste gas purification device for nitrocellulose production according to claim 1, characterized in that: The right side of the purification box (1) is provided with a plurality of slots (8), and the plurality of slots (8) are arranged at equal intervals.

7. A multi-stage filtration of waste gas purification device for producing nitrocellulose according to claim 1, characterized in that: The left side of the air outlet pipe (3) is provided with a mounting hole (17), the inside of the mounting hole (17) is provided with a probe (18), and the right side of the probe (18) extends to the inside of the air outlet pipe (3).

8. A multi-stage filtration waste gas purification apparatus for producing nitrocellulose according to claim 7, characterized in that: The left side of the probe (18) is provided with a connecting line (19), and the left side of the connecting line (19) is provided with a controller (20).