Waste gas purification device for air pollution control

Abstract

The utility model provides a waste gas purification device for air pollution control, which comprises a box body and a waste gas box, a gas inlet pipe is arranged on one side of the waste gas box, a gas outlet pipe is arranged on the outer wall of the box body, a plurality of groups of gas guide pipes are arranged in the box body, and two ends of the plurality of groups of gas guide pipes are arranged on the outer wall of the box body in a penetrating manner. The connection mode between the air guide pipe and the first flange plate and the connection mode between the U-shaped pipe and the first flange plate and the connection mode between the U-shaped pipe and the second flange plate bring great convenience to maintenance and overhaul of equipment, and after long-term operation, when the inner wall of the air guide pipe needs to be cleaned due to accumulation of viscous substances or adhesion of other pollutants, the cleaning is convenient. When inspection and maintenance are needed due to problems such as blockage and liquid accumulation in the U-shaped pipe or the inside of the U-shaped pipe, the U-shaped pipe can be easily detached and separated by means of a connecting structure between the flange plates, and compared with a traditional gas guide pipe which is integrally and fixedly installed, the detachable design greatly shortens the maintenance time, reduces the maintenance difficulty and cost, and improves the maintenance efficiency. And the influence on enterprise production caused by shutdown maintenance of equipment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to waste gas treatment technical field, more specifically, especially relate to a kind of for atmospheric pollution control waste gas purification device. BACKGROUND

[0002] In today's era of continuous industrialization, many industries such as chemical industry, pharmaceutical industry, coating, printing and wood processing, their production activities will produce a large amount of waste gas. The composition of these waste gas is very complex, covering volatile organic compounds (VOCs), nitrogen oxides (NOx), sulfur oxides (SOx), particulate matter (PM) and other harmful ingredients, and in some specific industries, such as wood processing industry, waste gas also contains special sticky substances, such as wood oil.

[0003] In the field of waste gas purification, the gas guide pipe is the key transmission channel, and its performance and maintenance affect the effectiveness of the system. In the existing device, the gas guide pipe is mostly fixed in the box, and there are many problems in long-term operation. Waste gas contains many pollutants, and sticky substances are easy to adhere to the inner wall, such as wood oil in wood processing, which is more likely to deposit at the bending part of the gas guide pipe due to airflow changes. With time, a large amount of accumulation causes the flue diameter to become smaller, and when the waste gas passes through the narrow area, the airflow is disturbed to produce turbulent flow, unstable flow, uneven flow rate and flow, greatly reduced transmission efficiency, increased residence time and energy consumption, and noise pollution caused by unstable airflow and pipe wall, affecting surrounding personnel. In addition, the accumulation of wood oil provides an environment for microorganisms, which reproduce and corrode the inner wall, causing the strength of the gas guide pipe to decrease and the service life to shorten. In extreme cases, it may leak, and the waste gas, which has not been fully purified, is directly discharged into the atmosphere, causing serious environmental pollution and making it difficult to meet the standards of the purification device.

[0004] Therefore, in view of the above, the existing structure and defects are improved to provide a waste gas purification device for atmospheric pollution control, in order to achieve more practical value. INVENTION CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a waste gas purification device for atmospheric pollution control, which is achieved by the following specific technical means:

[0006] A waste gas purification device for atmospheric pollution control, comprising a box body and a waste gas tank, the waste gas tank is provided with an air inlet pipe on one side, the outer wall of the box body is provided with an air outlet pipe, a plurality of gas guide pipes are installed in the inside of the box body, the two ends of the plurality of gas guide pipes are penetrated and installed on the outer wall of the box body, and the outer wall of the two ends is clamped with a first flange plate, one end of the outer wall of the adjacent two groups of gas guide pipes is connected with a U-shaped pipe through the first flange plate, the two ends of the U-shaped pipe are installed with a second flange plate which can cooperate with the first flange plate, the inside of the plurality of gas guide pipes is provided with a polished rod, the outer wall of the plurality of polished rods is installed with a filter screen at intervals, and the outer wall of the two ends of the plurality of polished rods is screw connected with the first flange plate.

[0007] Preferably, one side of the box is provided with an observation window.

[0008] Preferably, the inside of the plurality of light rods is a cavity, the outer wall of the plurality of light rods is provided with a plurality of through holes communicating with the cavity, the second flange plate at the bottom of the plurality of U-shaped tubes is provided with a slot capable of being connected with one end of the light rod, and the outer wall of the second flange plate at the bottom of the plurality of U-shaped tubes is provided with a liquid delivery pipe communicating with the slot.

[0009] Preferably, one side of the box is provided with a water inlet, the bottom end of the box is provided with a water outlet, the inner bottom end of the box is provided with a temperature sensor, and the inner wall of the water outlet is provided with an electromagnetic valve.

[0010] Preferably, the outer wall of the gas inlet pipe and the gas outlet pipe is provided with a return pipe, the inner wall of the return pipe is provided with a quality detection device, and the connection part of the return pipe with the gas inlet pipe and the gas outlet pipe is provided with a one-way valve.

[0011] Preferably, the gas guide pipe is made of titanium alloy material which is resistant to acid and alkali corrosion and has good heat conduction performance, and the outer wall of the gas guide pipe is provided with spiral heat dissipation fins.

[0012] Preferably, one side of the first flange plate is provided with an annular clamping groove matched with the end of the gas guide pipe, and the inner part of the annular clamping groove is tightly matched with a sealing pad.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The connection mode between the gas guide pipe, the first flange plate, the U-shaped tube and the first flange plate and the second flange plate brings great convenience for the maintenance and repair of the equipment, when the inner wall of the gas guide pipe needs to be cleaned due to the accumulation of viscous substances or the attachment of other pollutants, or when the U-shaped tube needs to be checked and repaired due to blockage, liquid accumulation and other problems, the gas guide pipe can be easily disassembled and separated by means of the connection structure between the flange plates, compared with the traditional integral fixed installation of the gas guide pipe, the detachable design greatly shortens the maintenance time, reduces the maintenance difficulty and cost, and reduces the impact of equipment downtime maintenance on enterprise production.

[0015] The filter system constructed by the plurality of gas guide pipes and the filter screens arranged at intervals in the inside can effectively intercept pollutants of different particle sizes, including particulate matters in waste gas, viscous substances and part of gaseous pollutants, the filter screens can be arranged in multiple layers according to the flow direction of the waste gas and the characteristics of the particles, the larger particles and viscous substances are preliminarily filtered from the inlet end, so that the gas guide pipe and the subsequent fine filtering components are prevented from being rapidly blocked, the stability and long-term effectiveness of the overall filtration are improved, and it is ensured that the waste gas after purification can stably reach the emission standard in terms of the content of particulate matters and part of pollutants.

[0016] 3. The utility model discloses a storage tank can inject the chemical agent or cleaning fluid for different pollutants, for example, when meeting the waste gas containing acid gas, can inject the basic absorbent and carry out neutralization reaction, for the sticky material of easy adhesion, can inject the special dissolving agent or cleaning agent and carry out cleaning and decomposition, the ability of flexible adjustment processing mode according to waste gas composition significantly improves the removal effect of device to various special pollutants, further improves the overall purification efficiency, makes the device when processing complex and changeable industrial waste gas can always maintain efficient and stable purification performance, ensures that the multiple harmful components in waste gas are treated deeply, reduces the pollution risk to atmospheric environment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the three-dimensional schematic diagram of the utility model Figure 1 .

[0018] Figure 2 It is the three-dimensional schematic diagram of the utility model Figure 2 .

[0019] Figure 3 It is the sectional schematic diagram of the utility model.

[0020] Figure 4 It is the internal structure schematic diagram of the utility model gas guide pipe.

[0021] Figure 5 It is Figure 4 A structure amplification schematic diagram in.

[0022] In the drawing, the corresponding relationship of component name and drawing number is as follows:

[0023] 1, box body, 2, waste gas tank, 3, gas guide pipe, 4, U-shaped pipe, 5, first flange, 6, second flange, 7, light pole, 8, infusion tube, 9, storage tank, 10, slot, 11, gas inlet pipe, 12, gas outlet pipe, 13, backflow pipe, 14, filter screen. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] Embodiment:

[0026] As shown in the accompanying drawings: Figure 1 to the accompanying drawings: Figure 5

[0027] ​The utility model provides a kind of for atmospheric pollution control waste gas purification device, including box 1 and waste gas tank 2, the side of waste gas tank 2 is provided with inlet pipe 11, box 1 outer wall is provided with outlet pipe 12, the inside of box 1 is equipped with multiple groups of air guide pipe 3, the both ends of multiple groups of air guide pipe 3 are all installed in the outer wall of box 1, and its both ends outer wall is all clamped with first flange plate 5, the outer wall of one end of adjacent two groups of air guide pipe 3 is connected with U tube 4 by first flange plate 5, the both ends of U tube 4 are installed with the second flange plate 6 that can cooperate with first flange plate 5, the inside of multiple groups of air guide pipe 3 is all provided with light rod 7, the outer wall of multiple groups of light rod 7 is all spaced and installed with filter screen 14, the both ends outer wall of multiple groups of light rod 7 is all connected with first flange plate 5 spiral.

[0028] Among them, the side of box 1 is provided with observation window, observation window is arranged at the side of box 1, it is convenient for operator to visually see the working condition of each component inside box 1, can promptly detect whether component exists blockage, effusion, damage and other abnormal phenomena, help to discover potential problems as soon as possible, take maintenance measures in advance, avoid small fault evolution into big problem, guarantee that device stably and continuously operates, reduce downtime and repair cost caused by equipment sudden failure, improve the operating efficiency and reliability of entire waste gas purification device.

[0029] Among them, the inside of multiple groups of light rod 7 is all cavity, the outer wall of multiple groups of light rod 7 is all provided with multiple groups of through hole communicated with cavity, the second flange plate 6 of multiple groups of U tube 4 bottom end is all provided with the slot 10 that can be butt-jointed with one end of light rod 7, the outer wall of second flange plate 6 of multiple groups of U tube 4 bottom end is all installed with infusion tube 8 communicated with slot 10, the one end of multiple groups of infusion tube 8 is commonly communicated and connected with storage tank 9, the inside of light rod 7 is cavity and the outer wall has through hole, and the slot 10 of second flange plate 6 of U tube 4 bottom end, infusion tube 8 communicated and storage tank 9 cooperate, so that different chemical reagents can be injected into the cavity of light rod 7 flexibly according to the specific composition of waste gas and purification demand, and the reagents are uniformly sprayed onto the inner wall of air guide pipe 3 and filter screen through through hole, the design greatly enhances the purification treatment capacity of device to different types of pollutants, realizes targeted purification operation, improves overall purification efficiency, ensures that waste gas can be more fully and effectively purified, better meet strict environmental protection emission standards.

[0030] The side of the box body 1 is provided with a water inlet, the bottom end of the box body 1 is provided with a water outlet, and the inner bottom end of the box body 1 is provided with a temperature sensor. The inner wall of the water outlet is provided with an electromagnetic valve. The water inlet can inject water into the box body 1. The water outlet cooperates with the electromagnetic valve installed on the inner wall of the water outlet and the temperature sensor at the inner bottom end to form a complete temperature control system. The temperature sensor monitors the water temperature in real time, and the electromagnetic valve automatically adjusts the water outlet flow according to the set temperature range, so as to accurately control the water temperature in the box body 1. The appropriate water temperature can optimize the cooling effect of the exhaust gas in the air guide pipe 3. On the one hand, it can avoid the adverse effects of equipment material aging and chemical reaction imbalance caused by high temperature of exhaust gas. On the other hand, it can prevent condensation and other phenomena caused by low temperature from interfering with the purification process, so as to ensure that the exhaust gas purification reaction is carried out efficiently at an appropriate temperature, and improve the purification effect and operation stability of the whole device.

[0031] The outer wall of the air inlet pipe 11 and the air outlet pipe 12 is provided with a return pipe 13, the inner wall of the return pipe 13 is provided with a quality detection device, and the connection parts of the return pipe 13 and the air inlet pipe 11 and the air outlet pipe 12 are provided with one-way valves. The quality detection device in the return pipe 13 can monitor the quality of the exhaust gas in real time. When the exhaust gas does not meet the emission standard, the exhaust gas can be introduced into the device again for purification under the action of the one-way valve.

[0032] The air guide pipe 3 is made of titanium alloy material which is resistant to acid and alkali corrosion and has good heat conduction performance. The outer wall of the air guide pipe 3 is provided with spiral heat dissipation fins. The titanium alloy material can resist the corrosion of acidic and alkaline substances in the exhaust gas, maintain the structure integrity for a long time, greatly prolong the service life of the air guide pipe 3, reduce the frequency of equipment replacement and maintenance cost caused by corrosion, and accelerate the dissipation of exhaust gas heat, which helps to maintain a suitable temperature environment in the air guide pipe 3, further optimizes the transmission and purification process of the exhaust gas, and prevents various problems caused by heat accumulation.

[0033] The side of the first flange plate 5 is provided with an annular clamping groove matched with the end of the air guide pipe 3, and the inner part of the annular clamping groove is tightly matched with a sealing pad. The annular clamping groove matched with the end of the air guide pipe 3 is opened on the side of the first flange plate 5, and the inner part is tightly matched with a sealing pad. This structure can facilitate the installation and disassembly between the air guide pipe 3 and the first flange plate 5, and can be quickly operated to save time and labor cost during equipment maintenance, repair or replacement of parts. On the other hand, the sealing pad effectively fills the small gap at the connection part, prevents the exhaust gas from leaking at the connection part, ensures the air tightness of the whole device, avoids the decrease of purification efficiency and secondary pollution to the surrounding environment caused by leakage, ensures the stable and efficient purification process of the exhaust gas, and maintains the good purification performance of the device.

[0034] The working principle of the embodiment: the exhaust gas enters the multiple sets of air guide pipes 3 through the air inlet pipe 11. When the exhaust gas just enters the air guide pipe 3, it will first encounter the filter screen 14 installed on the outer wall of the light rod 7 at intervals. The filter screen 14 intercepts the particulate matter in the exhaust gas in order from coarse to fine from the air inlet end. The dust and impurities with larger particle sizes are first intercepted by the coarse filter layer. As the exhaust gas continues to flow, the particulate matter with medium and small particle sizes is filtered by the medium filter layer and the fine filter layer in turn, preliminarily purifying the solid pollutants in the exhaust gas. In this process, the operator can observe whether the filter screen 14 is blocked by observing the observation window. If it is found to be blocked, the relevant situation can be recorded, and maintenance and cleaning can be carried out at the appropriate opportunity. According to the composition of the exhaust gas and the purification requirements, the pressure device or infusion pump of the storage tank 9 is opened, so that the chemical reagent in the storage tank 9 enters the cavity of the light rod 7 through the infusion pipe 8, and is then uniformly sprayed on the inner wall of the air guide pipe 3 and the filter screen 14 from the through hole on the outer wall of the light rod 7. For example, when the exhaust gas contains acidic gas, the alkaline absorbent reacts with the acidic gas. If there are sticky substances such as wood oil, the corresponding dissolving agent or cleaning agent will decompose and remove them. The purified product will continue to be transported in the air guide pipe 3 or will drip to the bottom of the box 1 along with the airflow. At the same time, the water in the box 1 continuously cools and cools the exhaust gas in the air guide pipe 3. The temperature sensor monitors the water temperature in real time. When the water temperature rises due to the absorption of heat from the exhaust gas and exceeds the preset range, the electromagnetic valve is automatically opened to discharge part of the hot water and supplement cold water in time to maintain the water temperature within the appropriate range, so that the purification reaction can be carried out under suitable temperature conditions, improving the purification efficiency and stability. The exhaust gas after preliminary filtration and purification continues to be transported in the air guide pipe 3 and is finally discharged to the outside through the air outlet pipe 12. In the process of discharging the exhaust gas, the quality detection device on the inner wall of the reflux pipe 13 detects the composition, concentration and other key indicators of the exhaust gas in real time. If the detection result shows that the exhaust gas meets the emission standard, the exhaust gas is directly discharged into the atmosphere. If the exhaust gas is found to be substandard, the one-way valve at the connection between the reflux pipe 13 and the air inlet pipe 11 and the air outlet pipe 12 changes the flow direction of the exhaust gas under the cooperation of the flow regulating valve, so that the exhaust gas reenters the air inlet pipe 11 through the reflux pipe 13 and is subjected to a new round of purification treatment in the device. When the device has been operated for a period of time, the device is maintained according to the observed situation observed through the observation window or the preset maintenance period. If it is found that the filter screen 14 is seriously blocked or the purification effect is decreased, the introduction of the exhaust gas can be stopped, the relevant equipment can be closed, the first flange plate 5 can be disassembled, the light rod 7 together with the filter screen 14 can be taken out of the air guide pipe 3, and the filter screen 14 can be cleaned or replaced. When cleaning, external cleaning equipment such as a high-pressure water gun or chemical cleaning liquid immersion can be used to remove dirt and impurities on the filter screen. After cleaning, the filter screen is dried and then reinstalled in the air guide pipe 3 and the first flange plate 5 is tightened. As for the U-shaped pipe 4, if it is suspected that there is liquid accumulation or blockage in it, the second flange plates 6 at both ends of the U-shaped pipe 4 can be disassembled, the U-shaped pipe 4 can be taken out for inspection and cleaning, and after cleaning, the U-shaped pipe 4 can be reinstalled in place.

[0035] Embodiments of the present application are presented by way of example and description only and are not intended to be exhaustive or to limit the application to the form disclosed. Many modifications and variations will be apparent to those skilled in the art. Embodiments are chosen and described in order to best explain the principles of the application and its practical application to thereby enable others skilled in the art to best utilize the application in various embodiments and with various modifications as are suited to the particular use contemplated.

Claims

1. An atmospheric pollution treatment waste gas purification device, comprising a box (1) and a waste gas box (2), one side of the waste gas box (2) is provided with an air inlet pipe (11), and the outer wall of the box (1) is provided with an air outlet pipe (12), characterized in that: The inside of the box (1) is provided with a plurality of groups of air guide pipes (3), both ends of the plurality of groups of air guide pipes (3) are penetrated and installed on the outer wall of the box (1), and the outer wall of both ends is clamped with a first flange plate (5), one end of the adjacent two groups of air guide pipes (3) is connected with a U-shaped pipe (4) through the first flange plate (5), both ends of the U-shaped pipe (4) are provided with a second flange plate (6) which can cooperate with the first flange plate (5), the inside of the plurality of groups of air guide pipes (3) is provided with a polished rod (7), the outer wall of the plurality of groups of polished rods (7) is spaced apart and provided with a filter screen (14), and the outer wall of both ends of the plurality of groups of polished rods (7) is spirally connected with the first flange plate (5).

2. The exhaust gas purification device for air pollution control as described in claim 1, characterized in that: One side of the box (1) is provided with an observation window.

3. The exhaust gas purification device for air pollution control as described in claim 1, characterized in that: The inside of the plurality of groups of polished rods (7) is a cavity, a plurality of groups of through holes are formed in the outer wall of the plurality of groups of polished rods (7) and communicated with the cavity, the bottom end second flange plate (6) of the plurality of groups of U-shaped pipes (4) is provided with a slot (10) which can be butt jointed with one end of the polished rod (7), the outer wall of the bottom end second flange plate (6) of the plurality of groups of U-shaped pipes (4) is provided with a liquid delivery pipe (8) which is communicated with the slot (10), and one end of the plurality of groups of liquid delivery pipes (8) is commonly communicated and connected with a storage tank (9).

4. The exhaust gas purification device for air pollution control as described in claim 1, characterized in that: One side of the box (1) is provided with a water inlet, the bottom end of the box (1) is provided with a water outlet, the inner bottom end of the box (1) is provided with a temperature sensor, and the inner wall of the water outlet is provided with a solenoid valve.

5. The exhaust gas purification device for air pollution control as described in claim 1, characterized in that: The outer wall of the air inlet pipe (11) and the air outlet pipe (12) is communicated and provided with a return pipe (13), the inner wall of the return pipe (13) is provided with a quality detection device, and the connection parts of the return pipe (13) with the air inlet pipe (11) and the air outlet pipe (12) are respectively provided with a one-way valve.

6. The device according to claim 1, wherein the device is used for air pollution control. The air guide pipe (3) is made of titanium alloy material which is resistant to acid and alkali corrosion and has good heat conduction performance, and the outer wall of the air guide pipe (3) is provided with spiral heat dissipation fins.

7. The device according to claim 1, wherein the device is used for air pollution control. The side of the first flange plate (5) is provided with an annular clamping groove which is matched with the end of the air guide pipe (3), and the inner part of the annular clamping groove is tightly matched with a sealing pad layer.

Images