CN217473096U

CN217473096U - Tail gas collecting system is used in production of 110 methyl vinyl silicone rubber

Info

Publication number: CN217473096U
Application number: CN202221185236.3U
Authority: CN
Inventors: 刘成正; 李超; 刘成彬; 汪令杰; 唐年华; 李新欣; 高帅
Original assignee: Hesheng Silicon Industry Zhangzhou Co ltd
Current assignee: Hesheng Silicon Industry Zhangzhou Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-09-23
Anticipated expiration: 2032-05-16

Abstract

The utility model relates to the technical field of rubber production, and provides a tail gas collecting system for 110 methyl vinyl silicone rubber production aiming at the problem that VOC discharge exceeds standard in the current process of producing 110 methyl vinyl silicone rubber, wherein a reaction kettle and a washing tower are communicated through a main pipeline, the tail gas collecting system comprises a tail gas collecting pipeline arranged on the side wall surface of the main pipeline in a penetrating way, and both ends of the tail gas collecting pipeline are communicated with the main pipeline; along the direction of material transport, gas condenser, condensate collection tank and filter group are worn to be equipped with in order by tail gas collecting pipe. In the tail gas collecting system of this application, the function of collecting as required can be realized to the lateral wall face of trunk line is all worn to locate at the direct both ends with tail gas collecting pipe, through valve control material flow direction tail gas collecting pipe when needing to carry out tail gas collection promptly, carries along the trunk line through valve control material when appearing unusually or need not carry out tail gas collection.

Description

Tail gas collecting system is used in production of 110 methyl vinyl silicone rubber

Technical Field

The utility model relates to a rubber production technical field particularly, relates to a 110 tail gas collection system is used in methyl vinyl silicone rubber production.

Background

110 methyl vinyl silicone rubber refers to low molecular weight methyl vinyl silicone rubber, typically between 45 and 70 million molecular weight. In the industrial preparation of 110 methyl vinyl silicone rubber, dimethyl siloxane mixed ring body (or octamethyl cyclotetrasiloxane) is usually mixed with a certain amount of tetramethyl tetravinylcyclotetrasiloxane and tetramethyl divinyl disiloxane, ring-opening polymerization is carried out at a certain temperature under the condition of a specific alkali rubber catalyst to generate raw rubber, and then the raw rubber is vulcanized to prepare the 110 methyl vinyl silicone rubber. The raw materials are polymerized and subjected to low removal in a reaction kettle, and the prepared product is introduced into a washing tower. Wherein, low molecular gas is generated in the processes of polymerization, glue making and the like, the main component of the low molecular gas is octamethylcyclotetrasiloxane, the octamethylcyclotetrasiloxane is a Volatile Organic Compound (VOC), and the low molecular gas can cause serious damage to human health and air environment when being directly discharged into the atmosphere.

Therefore, an exhaust gas collecting system for 110 methylvinylsiloxane rubber production, which can reduce the emission of VOC, is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the VOC emission exceeds standard in the process of producing 110 methyl vinyl silicone rubber at present. The application provides a tail gas collecting system is used in production of 110 methyl vinyl silicone rubber handles tail gas through addding gas condenser, condensate collecting pipe and active carbon filter in low vacuum exhaust gas tower import department, can adsorb the recovery to the VOC in the tail gas.

The utility model discloses a following technical scheme realizes:

a tail gas collecting system for 110 methyl vinyl silicone rubber production is characterized in that a reaction kettle is communicated with a washing tower through a main pipeline, and comprises a tail gas collecting pipeline penetrating through the side wall surface of the main pipeline, and two ends of the tail gas collecting pipeline are communicated with the main pipeline; along the direction of material transport, gas condenser, condensate collection tank and filter group are worn to be equipped with in order by tail gas collecting pipe.

Preferably, in the main pipeline, a first valve is arranged at the middle section of the main pipeline between the liquid inlet end of the tail gas collecting pipeline and the liquid outlet end of the tail gas collecting pipeline.

Preferably, in the tail gas collecting pipeline, a downstream end close to the feeding port of the tail gas collecting pipeline is provided with a second valve.

Preferably, a sub-pipeline in the tail gas collecting pipeline between the gas condenser and the condensate collecting tank is provided with a safety valve.

Preferably, the condensate collecting tank is communicated with a waste liquid recovery tank.

Preferably, the filter group comprises a plurality of activated carbon filters connected in parallel, and the discharge end of each activated carbon filter is communicated with the main pipeline.

Preferably, the feed end of each activated carbon filter is provided with a switch valve.

Preferably, the activated carbon filter is internally provided with a plurality of activated carbon placing parts which are stacked in a vertical direction.

Preferably, the active carbon placing parts are placing drawers with concave surfaces, and the adjacent two active carbon placing parts are clamped.

Preferably, the placing drawer is provided with a plurality of air holes.

The technical scheme of the utility model following beneficial effect has:

(1) among the 110 methyl vinyl silicone rubber of industrial production, the trunk line that leads to between reation kettle and the scrubbing tower is connected more, and this tail gas collection system is direct all wears to locate the lateral wall face of trunk line with the both ends of tail gas collection pipeline, can realize the function of collecting as required, need carry out through valve control material flow direction tail gas collection pipeline when tail gas is collected promptly, carry along the trunk line through the valve control material when appearing unusually or need not carry out tail gas collection.

(2) The filter group adopts a plurality of activated carbon filters connected in parallel, so that the filtering efficiency can be increased, and when the activated carbon needs to be replaced, part of the activated carbon filters can be closed by controlling the switch valves of different activated carbon filters, and an operator can replace the activated carbon in the closed activated carbon filters.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic configuration diagram of an exhaust gas collection system according to embodiment 1;

fig. 2 is a schematic sectional view showing an activated carbon filter in example 1.

An icon: 1-a main pipeline, 11-a first valve, 2-a tail gas collecting pipeline, 21-a second valve, 22-a safety valve, 3-a gas condenser, 4-a condensate collecting tank, 41-a waste liquid recycling tank, 5-an active carbon filter and 51-an active carbon placing part.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Example 1

As shown in fig. 1 and fig. 2, in the embodiment, a tail gas collecting system for 110 methyl vinyl silicone rubber production is provided, a reaction kettle is communicated with a washing tower through a main pipe 1, the tail gas collecting system comprises a tail gas collecting pipe 2 penetrating through a side wall surface of the main pipe 1, and both ends of the tail gas collecting pipe 2 are communicated with the main pipe 1; along the direction of material transport, gas condenser 3, condensate holding vessel 4 and filter group are worn to be equipped with in order by tail gas collecting pipe 2. Among the 110 methyl vinyl silicone rubbers of industrial production, many are connected through trunk line 1 between reation kettle and the scrubbing tower, and this tail gas collection system is direct all wears to locate the lateral wall face of trunk line 1 with the both ends of tail gas collecting pipe 2, can realize the function of collecting as required, through valve control material flow direction tail gas collecting pipe 2 when needing to carry out tail gas collection promptly, carry along trunk line 1 through the valve control material when appearing unusually or need not carry out tail gas collection.

In the embodiment, in the main pipeline, a first valve is arranged in the middle section of the main pipeline between the liquid inlet end of the tail gas collecting pipeline and the liquid outlet end of the tail gas collecting pipeline; in the exhaust gas collecting pipe 2, a second valve 21 is disposed at a downstream end close to the feed port of the exhaust gas collecting pipe 2. When tail gas collection treatment is carried out, the first valve 11 is normally closed, the second valve 21 is normally opened, and gas flows to the tail gas collection pipeline 2; if an abnormal condition occurs or the tail gas collection is finished, the first valve 11 can be opened, and the second valve 21 can be closed, so that the energy consumption is reduced.

In this embodiment, a sub-pipe in the exhaust gas collection pipe between the gas condenser and the condensate collection tank is provided with a safety valve, and the safety valve 22 can be braked emergently when an abnormal condition occurs.

In this embodiment, the condensate collecting tank 4 is connected to a waste liquid recovery tank 41 for collecting the excess waste liquid obtained after condensation.

In the embodiment, the filter group comprises a plurality of activated carbon filters 5 connected in parallel, so that the filtering efficiency can be increased; the discharge end of each activated carbon filter 5 all communicates with trunk line 1, and the feed end of each activated carbon filter 5 all disposes ooff valve, and when needs change the active carbon, through the ooff valve of the different activated carbon filters 5 of control, can close some activated carbon filters 5, and operating personnel can the removable active carbon in the activated carbon filter 5 who closes.

In this embodiment, inside the disposing of active carbon filter 5 has a plurality of active carbon placing parts 51 that stack along vertical direction, and active carbon placing part 51 is the concave drawer of placing of establishing in surface, and two adjacent active carbon placing parts 51 joint are placed the drawer and have been seted up a plurality of bleeder vents, and the tail gas of being convenient for sees through each layer of active carbon placing part 51, realizes filtering layer by layer, and the active carbon placing part 51 that the technical personnel in the field can select to set up different active carbon parameters according to actual conditions carries out the gradient filtration.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tail gas collecting system for 110 methyl vinyl silicone rubber production is characterized by comprising a tail gas collecting pipeline (2) penetrating through the side wall surface of a main pipeline (1), wherein both ends of the tail gas collecting pipeline (2) are communicated with the main pipeline (1);

along the direction of material transport, gas condenser (3), condensate collection tank (4) and filter group are worn to be equipped with in order in tail gas collecting tube (2).

2. The tail gas collecting system for the production of 110 methylvinyl silicone rubber according to claim 1, wherein in the main pipe (1), a first valve (11) is arranged in the middle section of the main pipe (1) between the liquid inlet end of the tail gas collecting pipe (2) and the liquid outlet end of the tail gas collecting pipe (2).

3. The exhaust gas collecting system for 110 methylvinylsiloxane rubber production according to claim 2, wherein a second valve (21) is disposed in the exhaust gas collecting pipe (2) at a downstream end close to the feed inlet of the exhaust gas collecting pipe (2).

4. The exhaust gas collection system for 110 methylvinylsiloxane rubber production according to claim 1, wherein a sub-pipe in the exhaust gas collection pipe (2) between the gas condenser (3) and the condensate collection tank (4) is provided with a safety valve (22).

5. The exhaust gas collecting system for 110 methylvinylsiloxane rubber production according to claim 1, wherein the condensate collecting tank (4) is connected to a waste liquid recovery tank (41).

6. The exhaust gas collecting system for 110 methylvinylsiloxane rubber production according to any one of claims 1 to 5, wherein said filter group comprises a plurality of activated carbon filters (5) connected in parallel, the discharge end of each activated carbon filter (5) being in communication with said main pipe (1).

7. The exhaust gas collection system for 110 methylvinylsiloxane rubber production according to claim 6, wherein a feed end of each of said activated carbon filters (5) is provided with a switch valve.

8. The exhaust gas collecting system for 110 methylvinylsiloxane rubber production according to claim 6, wherein a plurality of activated carbon placing portions (51) are provided inside said activated carbon filter (5) in a stacked manner in a vertical direction.

9. The exhaust gas collecting system for 110 methyl vinyl silicone rubber production according to claim 8, wherein the activated carbon placing parts (51) are placing drawers with concave surfaces, and two adjacent activated carbon placing parts (51) are clamped.

10. The tail gas collection system for 110 methylvinylsiloxane rubber production of claim 9, wherein the placing drawer is opened with a plurality of air holes.