CN216659312U

CN216659312U - Air-reducing and thickening system

Info

Publication number: CN216659312U
Application number: CN202122263857.0U
Authority: CN
Inventors: 徐祺; 戴竟成; 蔡建光
Original assignee: Shanghai Relief Printing Co ltd
Current assignee: Shanghai Relief Printing Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-06-03
Anticipated expiration: 2031-09-17

Abstract

The application discloses subtract wind thickening system includes: the system comprises at least one ESO device and an RTO system arranged in the next process of the ESO device, wherein the ESO device for treating waste gas generated by production equipment is arranged corresponding to the production equipment, the waste gas treated by the ESO device is conveyed through a first exhaust channel, and the first exhaust channel is connected with the RTO system. According to the application, the waste gas energy-saving and air-reducing concentration is carried out through the ESO equipment, the existing production equipment optimizes the original air supply and exhaust system through the steam type ESO-A matched with the existing production equipment, the purposes of saving heat energy, enabling hot air circulation to be more sufficient, reducing loss of heat energy and waste, playing the roles of saving energy, reducing consumption and improving the concentration of waste gas under the condition of meeting production requirements, and then intensively feeding the waste gas into the RTO equipment for waste gas treatment are achieved, so that the purposes of standard emission and energy conservation of environmental protection requirements are achieved.

Description

Air-reducing and thickening system

Technical Field

The application belongs to the technical field of environmental protection, concretely relates to subtract wind thickening system.

Background

In the existing printing environment, such as a compound machine or a printing machine, the existing air-reducing and thickening system still cannot meet the use requirement of the production environment, and therefore, the technical problem to be solved urgently is to provide the air-reducing and thickening system which saves heat energy, makes hot air circulation more sufficient, reduces waste of heat energy loss, and plays a role in saving energy, reducing consumption and improving waste gas concentration under the condition of ensuring meeting the production requirement.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings or drawbacks of the prior art, the present application provides a wind-reducing and thickening system.

In order to solve the technical problem, the application is realized by the following technical scheme:

the application provides a subtract wind thickening system includes: the system comprises at least one ESO (energy-saving hot air output and waste gas pretreatment device) device and an RTO (three-groove regenerative incinerator system) system arranged in the next process of the ESO device, wherein the ESO device for treating waste gas generated by production equipment is arranged corresponding to the production equipment, the waste gas treated by the ESO device is conveyed through a first exhaust channel, and the first exhaust channel is connected with the RTO system.

Optionally, the above wind-reducing and concentration-increasing system further includes: a stack disposed on a second exhaust passage of the RTO system.

Optionally, the above wind-reducing and concentration-increasing system, wherein the ESO device comprises: the air inlet fan and the heater are sequentially communicated and arranged on an air inlet channel of the production equipment; the balance valve is arranged on a first exhaust channel of the production equipment.

Optionally, in the above wind-reducing and concentration-increasing system, the ESO device further includes: the check valve is arranged on the air inlet channel of the production equipment.

Optionally, in the above wind-reducing and concentration-increasing system, the first exhaust channel of at least one of the ESO devices is further respectively communicated with an air intake and exhaust main pipe, and the air intake and exhaust main pipe is further connected to the RTO system.

Optionally, in the above wind-reducing and concentration-increasing system, an air intake device is further disposed at an inlet of the air intake and exhaust main pipe.

Optionally, in the above air-reducing and thickening system, an exhaust fan is further disposed at an outlet of the intake and exhaust main pipe.

Optionally, in the above wind-reducing and concentration-increasing system, the ESO device and the production device are connected in series to form a first processing unit, and the first processing unit is connected in parallel.

Optionally, the above wind-reducing and concentration-increasing system, wherein the production facility comprises: a dry compound machine or a printing press.

Optionally, in the above wind-reducing and concentration-increasing system, the RTO system is further configured with a furnace temperature and natural gas outage monitoring system.

Compared with the prior art, the method has the following technical effects:

this application is concentrated through energy-saving hot-blast output and waste gas pretreatment Equipment (ESO) waste gas energy-conservation air reduction, current production facility optimizes former air supply and exhaust system through supporting steam type ESO-A, reach and practice thrift heat energy, make heated air circulation more abundant, it is extravagant to reduce the loss of heat energy, play energy saving and consumption reduction and promote the waste gas concentration effect under the condition of guaranteeing to satisfy the production demand, send into three groove heat accumulation formulA incinerator systems (RTO) in A concentrated way and carry out exhaust-gas treatment, thereby reach discharge to reach standard and the energy-conserving purpose of environmental protection requirement.

In the application, the configuration cost of a standby heat source can be reduced by the ESO equipment, each hot air unit of the ESO corresponds to each group of compound or printing units of the production equipment, and after the whole hot air drying system is optimized, hot air circulation is more sufficient, the waste of heat energy loss is reduced, and the effects of saving energy and reducing consumption are achieved under the condition that the production requirement is met; moreover, the ESO equipment adopts a unique balanced air supply mode to ensure that the exhaust air of each drying oven can be utilized in multiple stages, the total exhaust air volume of the production equipment is greatly reduced under the condition of not reducing the drying air volume of the drying ovens, the concentration effect is formed, and the aim of saving energy is fulfilled; in the application, the total amount control enrichment technology of ESO equipment is particularly suitable for a drying system with a multi-section drying oven, the concentration of VOCs in the drying oven can be gradually increased along the total air exhaust direction, and then the total air exhaust amount is adjusted to control the concentration of the highest VOCs (volatile organic compounds) to be lower than 25% of the lower explosion limit, so that the air exhaust amount can be greatly reduced and the production safety is ensured.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1: the structure schematic diagram of the wind-reducing and thickening system in one embodiment of the application;

FIG. 2: the structure of the ESO device in an embodiment of the present application is schematically illustrated.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In one embodiment of the present application, as shown in FIG. 1, a wind reduction and enrichment system comprises: the system comprises at least one ESO device 10 and an RTO system 20 arranged in the next process of the ESO device 10, wherein the ESO device 10 used for treating waste gas generated by a production device M is arranged corresponding to the production device M, the waste gas treated by the ESO device 10 is conveyed through a first exhaust passage, and the first exhaust passage is connected with the RTO system 20. According to the embodiment, the ESO equipment 10 is used for energy-saving and air-reducing concentration of waste gas, the existing production equipment M optimizes the original air supply and exhaust system through the steam type ESO-A, heat energy is saved, hot air circulation is more sufficient, loss waste of heat energy is reduced, effects of saving energy, reducing consumption and improving the concentration of the waste gas are achieved under the condition that production requirements are met, the waste gas is intensively sent into the RTO system 20 for waste gas treatment, and therefore the purposes of standard emission and energy conservation of environmental protection requirements are achieved.

In this embodiment, the exhaust gas includes, but is not limited to: VOCs.

In this embodiment, the removal rate of the VOCs by the RTO system 20 may reach more than 98%.

In this embodiment, the RTO system 20 is also configured with a furnace temperature and natural gas interruption monitoring system. In order to timely find and control abnormal exhaust emission, the embodiment also adopts the corresponding precautionary measures: through the setting of furnace temperature control and natural gas interruption monitoring system, in case the trouble can in time report to the police, close RTO fan immediately to output signal stops production for production system. The fault alarm system has rapid response and can effectively control the abnormal emission of the waste gas pollutants.

Further, this embodiment further includes: a stack 30, the stack 30 being disposed on a second exhaust passage of the RTO system 20. Through the arrangement of the chimney 30, the waste gas can be subjected to centralized treatment and then discharged up to the standard, so that the purposes of protecting the environment and saving energy are achieved.

Wherein, in this embodiment, the production apparatus M includes: a dry compound machine or a printing press.

In this embodiment, two dry-compound machines are taken as an example for description, wherein 2 dry-compound machines can control the heating and blowing temperature at 85 ℃ to meet the drying requirements of compound drying; ESO hot air circulation multi-stage utilization greatly reduces the heat energy loss of the dry compounding machine; the residual quantity of the solvent of the product reaches the original internal control quality requirement of a manufacturer; the exhaust gas concentration is increased by reducing the draft through the ESO device 10, reducing the consumption of natural gas by the RTO system 20.

As shown in fig. 2, in the present embodiment, the ESO device 10 includes: the device comprises an air inlet fan 11, a heater 12 and a balance valve 14, wherein the air inlet fan 11 and the heater 12 are sequentially communicated and arranged on an air inlet channel of the production equipment M; the balancing valve 14 is provided on the first exhaust passage of the production apparatus M. Wherein, in the present embodiment, the heater 12 includes, but is not limited to, an oven, etc.

Further, the ESO device 10 further includes: and the check valve 13 is arranged on an air inlet channel of the production equipment M, and the check valve 13 is arranged on the air inlet channel of the production equipment M. Through the setting of check valve 13, can control and adjust the air inlet amount of wind.

The first exhaust channel of at least one of the ESO devices 10 is further respectively communicated with an air intake and exhaust main pipe 16, and the air intake and exhaust main pipe 16 is further connected with the RTO system 20.

Optionally, in this embodiment, an air intake device 15 is further disposed at the inlet of the air intake and exhaust main pipe 16.

Optionally, in this embodiment, an exhaust fan 17 is further disposed at the outlet of the intake and exhaust main pipe 16.

As shown in fig. 1, the ESO device 10 and the production device M are connected in series to form a first processing unit, and the first processing unit is connected in parallel. Through the arrangement, the waste gas generated by the production equipment M can be more effectively treated in a centralized way.

The effect of the treatment of the present embodiment on wind reduction and enrichment will be described below with experimental data. The production apparatus M will be described as including two dry-type multi-functional machines.

1) About safety performance index

After the dry compound machine of the embodiment is installed with the ESO device 10, firstly, an actual measurement value of the concentration (highest value) of the VOCs discharged from each section of the oven and secondly, an actual measurement value of the concentration of the VOCs discharged from the total exhaust air are detected, wherein the detection of the first and the second is less than or equal to 25% of the LEL of the used organic solvent, namely 5000 ppm.

2) Quality performance index of produced product

After the dry compound machine of the embodiment is provided with the ESO device 10, the measured value of the solvent residue of the product produced by compounding is less than or equal to the internal control standard of the solvent residue of the working procedure of a user, namely 3mg/m²(the user must ensure that the residual solvent content of the product produced prior to the wind-reduction retrofit or prior to installation of the ESO device 10 meets the internal control standards for the process)

3) Index of energy saving benefit

The measured value of the total exhaust air volume after the ESO equipment 10 is installed is less than or equal to 12000m³/h。

4) Wind-reducing and energy-saving effects with respect to ESO device 10

TABLE 1 wind-reduction and energy-saving Effect table for ESO device 10

As can be seen from table 1, by providing the ESO device 10 and the RTO system 20, the present embodiment can save at least 19.3 ten thousand dollars per year, and has a very considerable economic effect.

5) Cost related to RTO gas consumption

When the dry compound machine is full, the width reaches more than 0.8 m, the linear speed is more than or equal to 150m/min, and the concentration of VOCs after ESO air reduction concentration is 3-8 g/N.m ³Range, theoretical consumption of RTO natural gas of 0m ³And h, only a small amount of natural gas is consumed during cold start and heat preservation start, and the consumption of the part of natural gas is generated according to actual consumption.

Note: the actual consumption of the natural gas is the consumption of the cold start natural gas and the heat preservation start natural gas.

This application carries out waste gas energy-saving and subtracts wind concentration through ESO equipment 10, and current production facility M optimizes former air supply and exhaust system through supporting steam type ESO-A, reaches to practice thrift heat energy, makes heated air circulation more abundant, reduces the loss of heat energy extravagant, plays energy saving and consumption reduction and promotion exhaust gas concentration effect under the condition of guaranteeing to satisfy the production demand, and the concentration is sent into RTO system 20 and is carried out exhaust-gas treatment again to reach standard emission and the energy-conserving purpose of environmental protection requirement. In conclusion, the method has wide market application prospect.

In the description of the present application, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly and include, for example, fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

The above embodiments are merely provided to illustrate the technical solutions of the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made in the present invention without departing from the spirit and scope of the present invention and shall be covered by the appended claims.

Claims

1. A wind-reducing and thickening system, comprising: the system comprises at least one ESO device and an RTO system arranged in the next process of the ESO device, wherein the ESO device for treating waste gas generated by production equipment is arranged corresponding to the production equipment, the waste gas treated by the ESO device is conveyed through a first exhaust channel, and the first exhaust channel is connected with the RTO system.

2. The wind reduction and enrichment system of claim 1, further comprising: a stack disposed on a second exhaust passage of the RTO system.

3. The wind reduction and enrichment system of claim 1, wherein the ESO device comprises: the air conditioner comprises an air inlet fan, a heater and a balance valve, wherein the air inlet fan and the heater are sequentially communicated and arranged on an air inlet channel of the production equipment; the balance valve is arranged on a first exhaust channel of the production equipment.

4. The wind reduction and enrichment system of claim 2, wherein the ESO device further comprises: the check valve is arranged on the air inlet channel of the production equipment.

5. The wind-reducing and concentration-increasing system according to claim 2, wherein the first exhaust channel of at least one ESO device is further communicated with an air intake and exhaust main pipe respectively, and the air intake and exhaust main pipe is further connected with the RTO system.

6. The wind-reducing and concentration-increasing system according to claim 5, wherein an air intake device is further arranged at the inlet of the air intake and exhaust main pipe.

7. The air-reducing and thickening system according to claim 5, wherein an exhaust fan is further arranged at the outlet of the air intake and exhaust main pipe.

8. The wind reduction and concentration enhancement system according to any one of claims 1 to 7, wherein the ESO device is connected in series with the production device to form a first processing unit, and the first processing unit is connected in parallel.

9. A wind-reducing thickening system according to any one of claims 1 to 7, wherein the production apparatus comprises: a dry compound machine or a printing press.

10. A wind-reducing and thickening system according to any of claims 1 to 7, wherein the RTO system is further configured with a furnace temperature and natural gas outage monitoring system.