Methyl carbamate ammonia-containing tail gas treatment device

Abstract

The utility model mainly relates to the technical field of tail gas treatment, and provides a methyl carbamate ammonia-containing tail gas treatment device which structurally comprises an operation support, a Roots blower is fixedly arranged at the bottom of the operation support, material grooves are fixedly formed in the front side and the rear side of the right end of the operation support respectively, and transition pipes are fixedly arranged at the bottoms of the material grooves. The bottom of the transition pipe is fixedly connected with a feeding port in the right end of the auger conveyor, methyl carbamate powder in the trough and the transition pipe is conveyed into the collecting barrel through the auger conveyor, the powder is raised and scattered in the collecting barrel, and the powder is conveyed through the auger conveyor and scattered in the collecting barrel. At the moment, the Roots blower is matched with the exhaust pipe, air exhaust treatment is carried out in the collecting barrel through the filter cartridge and the dust filtering cloth bag, and air in the collecting barrel is pumped into the dilute acid spraying kettle to be treated.

Description

A tail gas treatment device for methyl carbamate containing ammonia. Technical Field

[0001] This utility model mainly relates to the field of exhaust gas treatment technology, specifically to an exhaust gas treatment device for methyl carbamate containing ammonia. Background Technology

[0002] In the production of methyl carbamate, ammonia is absorbed by dilute acid spraying. This process can absorb and treat the large amount of ammonia contained in methyl carbamate. However, a small amount of ammonia remains in the final packaging process of methyl carbamate. Therefore, the remaining small amount of ammonia needs to be collected and treated in the packaging process to prevent ammonia leakage and environmental pollution.

[0003] The inventors have proposed a tail gas treatment device for methyl carbamate containing ammonia. By installing an air extraction device at the methyl carbamate powder packaging equipment and installing a Roots blower and piping along the filling path of the methyl carbamate powder, the ammonia-containing air accumulated in the filling pipeline is extracted, thus avoiding the safety problem of ammonia in the packaging of methyl carbamate powder. Summary of the Invention

[0004] 1. Technical problem solved by the utility model:

[0005] This invention provides a tail gas treatment device for methyl carbamate containing ammonia, which solves the technical problem of ammonia in existing methyl carbamate powder filling.

[0006] 2. Technical Solution:

[0007] To achieve the above objectives, the technical solution provided by this utility model is: a tail gas treatment device for methyl carbamate containing ammonia, comprising the following structure:

[0008] The working support has a Roots blower fixed at its bottom and a material trough fixed at both the front and rear sides of the right end of the working support. A transition pipe is fixed at the bottom of the material trough and the bottom of the transition pipe is fixedly connected to the right end feed port of the auger conveyor.

[0009] The collection bucket has a first transition seat and a second transition seat respectively attached to the left and right sides of its bottom. A drive motor is fixed to the right side of the second transition seat, and a filter cylinder is fixed to the left output end of the drive motor.

[0010] Furthermore, a safety ladder is fixed to the rear left end of the working support, and a belt conveyor is fixed to the bottom of the working support.

[0011] Furthermore, the Roots blower is equipped with an air extraction pipe and an air delivery pipe at its inlet and outlet ends, respectively. The air inlet of the air extraction pipe extends into the filter cylinder, and the air outlet of the air delivery pipe extends into the dilute acid spraying kettle.

[0012] Furthermore, the top of the collection bucket is connected to the left discharge port of the auger conveyor, the bottom of the collection bucket is fixedly provided with an installation pipe, and the middle of the installation pipe is fixedly provided with a discharge valve.

[0013] Furthermore, the middle part of the first transition seat is fixed with a mating interface for the exhaust pipe.

[0014] Furthermore, the left end of the filter cylinder is fixed with an air extraction port that matches the air extraction pipe, the middle part of the filter cylinder is fixed with a filter hole, and the inner side of the filter cylinder is fixed with a dust filter bag. The opening of the dust filter bag faces the first transition seat, and the inner side of the dust filter bag is connected to the inner side of the air extraction pipe.

[0015] 3. Beneficial effects:

[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0017] This utility model provides a tail gas treatment device for methyl carbamate containing ammonia. The screw conveyor conveys methyl carbamate powder from the trough and transition pipe into the collection bucket. The powder is raised and dispersed in the collection bucket. The screw conveyor and the distribution of the powder in the collection bucket prevent the ammonia from being difficult to extract from the powder pile. At this time, the Roots blower and the exhaust pipe work together to extract air from the collection bucket through the filter cylinder and dust filter bag, and then the air in the collection bucket is sent to the dilute acid spraying kettle for treatment.

[0018] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0019] Figure 1 is a perspective view of the structure of this utility model;

[0020] Figure 2 is a perspective view of the structure of this utility model;

[0021] Figure 3 is a perspective view of the structure of the collection bucket of this utility model;

[0022] Figure 4 is a half-sectional perspective view of the material trough structure of this utility model;

[0023] Figure 5 is a half-sectional perspective view of the filter cylinder structure of this utility model.

[0024] Figure label:

[0025] Working support -1; Safety ladder -11; Belt conveyor -12;

[0026] Roots blower-2; extraction pipe-21; supply pipe-22;

[0027] Material trough-3; Transition pipe-31;

[0028] Screw Conveyor-4;

[0029] Collection bucket-5; Installation pipe-51; Discharge valve-52;

[0030] First Transition Seat - 6;

[0031] Second transition seat-7; Drive motor-71;

[0032] Filter cartridge-8; Air extraction port-81; Dust filter bag-82. Detailed Implementation

[0033] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element; the terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Referring to Figures 1-5, this utility model provides a tail gas treatment device for methyl carbamate containing ammonia, comprising the following structure:

[0037] The working support 1 has a Roots blower 2 fixed at its bottom. The front and rear sides of the right end of the working support 1 are both fixed with a material trough 3. The bottom of the material trough 3 is fixed with a transition pipe 31. The bottom of the transition pipe 31 is fixedly connected to the right end feed port of the auger conveyor 4.

[0038] The collection bucket 5 has a first transition seat 6 and a second transition seat 7 respectively attached to the bottom left and right sides. A drive motor 71 is fixed on the right side of the second transition seat 7, and a filter cylinder 8 is fixed on the left output end of the drive motor 71.

[0039] In this embodiment, a safety ladder 11 is fixedly installed on the rear left side of the working support 1, and a belt conveyor 12 is fixedly installed at the bottom of the working support 1.

[0040] Belt conveyor 12 is used for conveying and handling methyl carbamate packaging bags.

[0041] In this embodiment, the inlet and outlet of the Roots blower 2 are respectively fixed with an extraction pipe 21 and an air delivery pipe 22. The inlet of the extraction pipe 21 extends into the filter cylinder 8, and the outlet of the air delivery pipe 22 extends into the dilute acid spraying kettle.

[0042] The Roots blower 2 extracts ammonia gas from the filter cartridge 8 through the extraction pipe 21 and the delivery pipe 22 and delivers it to the dilute acid spraying kettle for treatment.

[0043] In this embodiment, the top of the collection bucket 5 is connected to the left discharge port of the auger conveyor 4, the bottom of the collection bucket 5 is fixedly provided with an installation pipe 51, and the middle of the installation pipe 51 is fixedly provided with a discharge valve 52.

[0044] The auger conveyor 4 conveys the methyl carbamate powder from the trough 3 and transition pipe 31 into the collection bucket 5. The powder is lifted and dispersed in the collection bucket 5. The auger conveyor and the distribution of the powder in the collection bucket 5 prevent ammonia from being difficult to remove from the powder pile. At this time, the Roots blower 2 works with the exhaust pipe 21 to extract air from the collection bucket 5 through the filter cylinder 8 and the dust filter bag 82, and then sends the air in the collection bucket 5 to the dilute acid spraying kettle for treatment.

[0045] The air replenishment path in the collection bucket 5 is through the material trough 3, the transition pipe 31, and the screw conveyor 4.

[0046] In this embodiment, the middle part of the first transition seat 6 is fixed with a mating interface for the exhaust pipe 21.

[0047] The design of the interface of the first transition seat 6 and the air extraction port 81 of the filter cylinder 8 facilitates the insertion of the air extraction pipe 21 into the inside of the filter cylinder 8 to extract the air containing ammonia from the collection bucket 5, thereby preventing the presence of ammonia in the subsequent packaged methyl carbamate powder.

[0048] In this embodiment, the left end of the filter cylinder 8 is fixed with an air extraction port 81 that matches the air extraction pipe 21, the middle part of the filter cylinder 8 is fixed with a filter hole, and the inner side of the filter cylinder 8 is fixed with a dust filter bag 82. The opening of the dust filter bag 82 faces the first transition seat 6, and the inner side of the dust filter bag 82 is connected to the inner side of the air extraction pipe 21.

[0049] The design of the air extraction port 81 and the dust filter bag 82 of the filter cartridge 8 prevents powder from entering the inside of the filter cartridge and being drawn out. The drive motor 71 drives the filter cartridge 8 to rotate, which prevents the powder from accumulating and blocking on the filter cartridge 8, and ensures that the powder is normally conveyed out through the installation pipe 51 and the discharge valve 52.

[0050] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A tail gas treatment device for methyl carbamate containing ammonia, characterized in that: The structure includes the following: a working support (1), a Roots blower (2) is fixedly installed at the bottom of the working support (1), a material trough (3) is fixedly installed on the front and rear sides of the right end of the working support (1), a transition pipe (31) is fixedly installed at the bottom of the material trough (3), and the bottom of the transition pipe (31) is fixedly connected to the right end feed port of the auger conveyor (4); a collection bucket (5), a first transition seat (6) and a second transition seat (7) are respectively snapped on the left and right sides of the bottom of the collection bucket (5), a drive motor (71) is fixedly installed on the right side of the second transition seat (7), and a filter cylinder (8) is fixedly installed at the left output end of the drive motor (71).

2. The tail gas treatment device for methyl carbamate containing ammonia according to claim 1, characterized in that: A safety ladder (11) is fixedly installed on the rear left side of the working support (1), and a belt conveyor (12) is fixedly installed at the bottom of the working support (1).

3. The tail gas treatment device for methyl carbamate containing ammonia according to claim 1, characterized in that: The Roots blower (2) is fixed with an air extraction pipe (21) and an air delivery pipe (22) at its inlet and outlet ends, respectively. The air inlet of the air extraction pipe (21) extends into the filter cylinder (8), and the air outlet of the air delivery pipe (22) extends into the dilute acid spraying kettle.

4. The tail gas treatment device for methyl carbamate containing ammonia according to claim 1, characterized in that: The top of the collection bucket (5) is connected to the left discharge port of the auger conveyor (4), and the bottom of the collection bucket (5) is fixedly provided with an installation pipe (51), and the middle of the installation pipe (51) is fixedly provided with a discharge valve (52).

5. The tail gas treatment device for methyl carbamate containing ammonia according to claim 1, characterized in that: The first transition seat (6) is fixedly provided with a mating interface for the exhaust pipe (21) in the middle.

6. The tail gas treatment device for methyl carbamate containing ammonia according to claim 1, characterized in that: The left end of the filter cylinder (8) is fixed with an air extraction port (81) that matches the air extraction pipe (21). The middle part of the filter cylinder (8) is fixed with a filter hole. The inner side of the filter cylinder (8) is fixed with a dust filter bag (82). The opening of the dust filter bag (82) faces the first transition seat (6). The inner side of the dust filter bag (82) is connected to the inner side of the air extraction pipe (21).

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