Medium and low temperature flue gas filtering device convenient to clean

Abstract

The utility model relates to the technical field of flue gas desulfurization and dust removal, in particular to a medium and low temperature flue gas filtering device convenient to clean, which comprises a main body shell, the main body shell is a vertically arranged square shell, and a plurality of mounting grooves penetrating through the main body shell are formed in opposite side walls of the main body shell. A plurality of mounting grooves are formed in the opposite side walls of the main body shell in a staggered mode, flow guide plates are slidably mounted in the mounting grooves, the width of each flow guide plate is matched with the inner diameter of the main body shell, and the length of each flow guide plate is four fifths of the inner diameter of the main body shell; a plurality of staggered mounting grooves are formed in the main body shell, the guide plates in the mounting grooves form an S-shaped loop in the main body shell, a plurality of spraying heads are mounted at the top of the main body shell through a mounting frame, the spraying heads face the tops of the guide plates, bristles are arranged on the bottom surfaces of the guide plates, and filtering teeth matched with the bristles are mounted at the mounting grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization and dust removal, in particular to a medium- and low-temperature flue gas filtering device which is easy to clean. Background Art

[0002] Flue gas desulfurization and dust removal are necessary measures for environmental protection and public health protection. The sulfur dioxide and particulate matter produced by burning coal, oil and other fuels in the industrial and energy production process can cause air pollution and acid rain, which is harmful to human health and natural ecosystems. Through desulfurization and dust removal, sulfur dioxide emissions can be reduced, the risk of acid rain formation can be reduced, and particulate matter can be removed to improve air quality, comply with environmental regulations, and protect the environment and public health.

[0003] In the prior art, most structures for removing dust from flue gas are filters. After the filters have been used for a period of time, their mesh will be clogged with dust, causing a significant decrease in the treatment flow of the flue gas. The filters need to be cleaned, and in the prior art, the flue gas treatment work is mostly stopped, and workers clean the mesh of the filters with hand-held tools. The cleaning of the filters is not only time-consuming and labor-intensive, but also requires shutdown, affecting the efficiency of the flue gas treatment.

[0004] In the prior art, sulfur dioxide contained in flue gas is mostly filtered by spraying alkaline absorbent. When the smoke concentration in the flue gas is high, the surface of the spraying device may accumulate due to the deposition of smoke, which may affect the normal operation of the spraying device and even cause performance degradation or failure of the equipment. Manual cleaning efficiency is too low and the labor intensity is high. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a medium- and low-temperature flue gas filtering device which is easy to clean. A plurality of guide plates are arranged in a staggered manner, and dense bristles are arranged at the bottom of the guide plates, so that dust and particulate matter in the flue gas can be fully captured. The sliding guide plates can be pulled out of the main body shell, and larger dust and particulate matter can be combed out by the filter teeth and fall into the inside of the main body shell, so that the operator can effectively clean the smaller dust and particulate matter captured on the bristles at the bottom of the guide plates. The guide plates are arranged in a staggered manner to increase the path of the flue gas flow, and most of the dust and particulate matter in the flue gas is captured by the bristles, so as to avoid excessive smoke and a large amount of dust and particulate matter in the smoke, which leads to a large amount of dust accumulation on the sprinkler head and affects the normal operation of the sprinkler head.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A medium- and low-temperature flue gas filtering device that is easy to clean, comprises a main shell, the main shell being a vertically arranged square shell, a plurality of mounting grooves penetrating the main shell being provided on opposite side walls of the main shell, the plurality of mounting grooves on the opposite side walls of the main shell being staggered, guide plates being slidably installed in the mounting grooves, the width of the guide plates being matched with the inner diameter of the main shell, the length of the guide plates being four-fifths of the inner diameter of the main shell, the guide plates in the plurality of staggered mounting grooves forming an S-shaped loop inside the main shell, a plurality of spray heads being installed on the top of the main shell through a mounting frame, the plurality of spray heads being arranged facing the top of the guide plate, bristles being provided on the bottom surface of the guide plate, and filter teeth matching the bristles being installed at the mounting grooves.

[0008] Preferably, a baffle is provided at one end of the guide plate close to the mounting groove, and a push-pull plate is provided at the upper end of the baffle.

[0009] Preferably, a water tank is provided at the bottom of the main shell, and a drain pipe is provided at one side of the bottom of the water tank.

[0010] Preferably, an air intake duct is provided on one side of the bottom of the main shell, and the top of the main shell is connected to the exhaust duct through an air collecting hood.

[0011] Preferably, the mounting frame has a hollow tube cavity, a liquid pipeline connected to the mounting frame is arranged on one side of the top of the main shell, and the spray head is connected to the hollow tube cavity of the mounting frame.

[0012] Preferably, two adjacent guide plates are parallel to each other, the top surface of the guide plate is a plane, and the bottom surface of the guide plate is provided with an array of bristles.

[0013] Preferably, the bristles are made of elastic metal, and the spacing between the filter teeth is adapted to the bristles.

[0014] Preferably, one end of the liquid pipeline is connected to the hollow tube cavity of the mounting frame, and the other end of the liquid pipeline is connected to the water supply tank outside the main shell, and a water pump is provided at the connection between the liquid pipeline and the water supply tank.

[0015] Preferably, a sewage purification device is provided at the drainage outlet of the drainage pipe, and a detachable filtering device is provided at the position where the drainage pipe is connected to the sewage purification device.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model has a simple structure. By staggering a plurality of guide plates, dense bristles are arranged at the bottom of the guide plates, which is convenient for fully capturing dust and particulate matter in the flue gas. The sliding guide plates can be pulled out of the main body shell, which is convenient for operators to effectively clean the dust and particulate matter captured on the bristles at the bottom of the guide plates.

[0018] 2. The installation groove of the device is provided with filter teeth, which can comb the bristles, and larger dust and particles can be combed out by the filter teeth. The combed out larger dust and particles are inside the main shell, so that when the guide plate is pulled out of the main shell, larger dust and particles are prevented from falling outside the main shell, which affects the external environment, thereby improving the practicality of the device.

[0019] 3. The guide plates in this device are staggered to increase the path of smoke flow. Most of the dust and particles in the smoke are captured by the bristles, which prevents the accumulation of dust on the sprinkler head when the smoke is too large, thus affecting the normal operation of the sprinkler head.

[0020] 4. When the device is filtering the smoke normally, each guide plate can be pulled out separately to clean the bristles at the bottom of the guide plate, thereby ensuring the smoke cleaning effect and completing the cleaning of the bristles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 The utility model is a cross-sectional view Figure 1 ;

[0024] Figure 4 The utility model is a cross-sectional view Figure 2 ;

[0025] Figure 5 The utility model is a cross-sectional view Figure 3 ;

[0026] Figure 6 for Figure 5 A magnified view of the local structure;

[0027] Figure 7 for Figure 4 A magnified view of the local structure.

[0028] In the figure: 1. Main body shell; 2. Air collecting hood; 3. Air inlet duct; 4. Exhaust duct; 5. Liquid duct; 6. Mounting frame; 7. Sprinkler head; 8. Guide plate; 9. Brush; 10. Baffle; 11. Push-pull plate; 12. Filter teeth; 13. Water tank; 14. Drain pipe. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1

[0031] A medium and low temperature smoke filter device that is easy to clean, the structure is as follows Figure 1-Figure 7 As shown, it includes a main shell 1, which is a vertically arranged square shell. The opposite side walls of the main shell 1 are provided with a plurality of mounting grooves penetrating the main shell 1. The plurality of mounting grooves on the opposite side walls of the main shell 1 are staggered. Guide plates 8 are slidably installed in the mounting grooves. The width of the guide plates 8 is matched with the inner diameter of the main shell 1. The length of the guide plates 8 is four-fifths of the inner diameter of the main shell 1. The guide plates 8 in the plurality of staggered mounting grooves form an S-shaped loop inside the main shell 1. A plurality of spray heads 7 are installed on the top of the main shell 1 through a mounting frame 6. The plurality of spray heads 7 are arranged facing the top of the guide plate 8. Bristles 9 are arranged on the bottom surface of the guide plate 8. Filter teeth 12 matched with the bristles 9 are installed at the mounting grooves.

[0032] A plurality of guide plates 8 are staggeredly arranged on two corresponding side surfaces of the main shell 1, so that an S-shaped loop is formed inside the main shell 1, and the path of the flue gas flow is lengthened. When the flue gas rises through the S-shaped loop and passes through the bristles 9 at the bottom of the guide plate 8, the bristles 9 are densely arranged, and dust and particulate matter in the flue gas are captured by the dense bristles 9 when passing through the bristles 9, thereby achieving a filtering effect on the flue gas. Since the staggered arrangement of the plurality of guide plates 8 increases the path of delayed flow, the dust and particulate matter in the flue gas are continuously filtered by the bristles 9 during the flow of the flue gas, until the flue gas flows to the top of the main shell 1, ensuring that most of the dust and particulate matter in the flue gas are cleaned up, and the flue gas reaching the top of the main shell 1 is sprayed by the spray head 7. The water mist released by the spray head 7 can combine with the particulate matter and dust in the flue gas, reduce the suspended concentration and settle it, thereby reducing the emission of particulate matter and dust, and can prevent dust and particulate matter from accumulating on the spray head 7, causing the spray head 7 to fail to work normally;

[0033] After a long period of filtration, a large amount of dust and particles will accumulate on the bristles 9 at the bottom of the guide plate 8. Since the guide plate 8 is slidably arranged in the installation groove, it is convenient for the operator to pull the guide plate 8 out of the main housing 1. When the guide plate 8 is pulled out of the main housing 1, the bristles 9 at the bottom of the guide plate 8 are connected with the filter teeth 12 at the installation groove, and the larger particles captured inside the bristles 9 can be scraped off and fall into the inside of the main housing 1. The water mist sprayed by the spray head 7 accumulates into a water flow, which cleans the larger particles cleaned out, thereby ensuring the self-cleaning effect inside the device;

[0034] When the dust captured inside the bristles 9 is brought out of the main shell 1 along with the guide plate 8, the operator cleans the captured dust, for example, using a vacuum cleaner or other equipment to avoid affecting the external environment. When the bristles 9 are cleaned, the guide plate 8 is pushed into the main shell 1 to continue the smoke filtering work. The whole process can be carried out without stopping the work, ensuring production efficiency while achieving the cleaning effect of the filtering device.

[0035] A baffle plate 10 is disposed at one end of the guide plate 8 close to the mounting groove, and a push-pull plate 11 is disposed at the upper end of the baffle plate 10 .

[0036] When the guide plate 8 is located inside the main shell 1 to filter the smoke normally, the baffle 10 abuts against the installation groove to cover the installation groove to prevent the internal smoke from leaking out. The push-pull plate 11 at the upper end of the baffle 10 can facilitate the operator to quickly pull the guide plate 8 out from the main shell 1 to clean the bristles 9 at the bottom of the guide plate 8. After cleaning, the baffle 11 can be quickly pushed into the main shell 1 to continue cleaning, thereby improving the practicability of the device.

[0037] A water tank 13 is disposed at the bottom of the main housing 1 , and a drainage pipe 14 is disposed at one side of the bottom of the water tank 13 .

[0038] The smoke containing dust and particles returns and rises under the guidance of the guide plate 8. Since dense bristles 9 are arranged at the bottom of the guide plate 8, it is convenient to capture the dust and particles inside the smoke when the smoke rises. In the process of the smoke returning and rising, most of the dust and particles in the smoke are filtered. The smoke rising to the top of the main shell 1 is sprayed by the spray head 7, and the fine dust contained in the smoke is cleaned by the water mist sprayed by the spray head 7, completing the cleaning of the smoke. The fine dust in the smoke falls on the top of the guide plate 8 under the action of the water mist. The sprayed water mist accumulates for a long time to form a water flow, which cleans the dust on the top of the guide plate 8 together. The water flow containing impurities flows downward, and the tops of multiple guide plates 8 are cleaned until the water flow finally falls into the water tank 13 at the bottom of the main shell 1, so as to realize the collection of sewage. The sewage in the water tank 13 is discharged through drainage, which is convenient for the continued collection of sewage generated subsequently, thereby improving the practicality of the device.

[0039] An air intake pipe 3 is provided at one side of the bottom of the main shell 1 , and the top of the main shell 1 is connected to an exhaust pipe 4 through an air collecting hood 2 .

[0040] Flue gas containing impurities such as dust and particulate matter enters from the air intake duct 3 at the bottom of the main shell 1, so that the flue gas can pass through the bottom of multiple guide plates 8, thereby increasing the path length of the flue gas treatment and preventing thicker flue gas from directly entering the interior of the main shell 1 and affecting the sprinkler head 7 at the top thereof. The guide plate 8 realizes the first step of cleaning the flue gas. After the flue gas is treated, it is guided through the air collecting hood 2 at the top of the main shell 1, so that the flue gas passes through the exhaust duct 4 and is discharged to the external environment or the next process.

[0041] The mounting frame 6 has a hollow tube cavity, and a liquid pipeline 5 connected to the mounting frame 6 is arranged on one side of the top of the main shell 1 , and the spray head 7 is connected to the hollow tube cavity of the mounting frame 6 .

[0042] The mounting frame 6 is a grid-like structure, and has a hollow chamber inside. The purified water enters the hollow chamber of the mounting frame 6 through the liquid pipe 5. Since the spray head 7 is connected to the mounting frame 6, the purified water enters the spray head 7 through the mounting frame 6, and the smoke is purified and cleaned through the spray head 7, ensuring that the multiple spray heads 7 arranged on the mounting frame 6 work at the same time.

[0043] Two adjacent guide plates 8 are parallel to each other, the top surface of the guide plate 8 is a plane, and the bottom surface of the guide plate 8 is provided with bristles 9 in an array.

[0044] The guide plates 8 are arranged parallel to each other, which can not only prevent smoke from accumulating at the angle between the guide plates 8 and the main shell 1, but also ensure that the water mist sprayed from the top sprinkler head 7 can quickly flow to the inside of the water tank 13, avoiding the water flow formed by the water mist from being stuck at the angle between the guide plates 8 and the main shell 1, thereby improving the practicality of the device.

[0045] The bristles 9 are made of elastic metal, and the spacing between the filter teeth 12 is adapted to the bristles 9 .

[0046] The spacing between the filter teeth 12 makes it easy to comb out the larger dust and particles captured inside the bristles 9, so that they fall into the main shell 1 and are cleaned by the water mist sprayed from the spray head 7. When the fine dust and particles cannot be combed out by the filter teeth 12, the operator pulls out the guide plate 8 to clean the bristles 9 at the bottom. The elastic metal material makes it easy for the bristles 9 to deform and be combed out by the filter teeth 12. The metal bristles 9 can increase the service life of the bristles 9 and ensure the cleaning efficiency of the device.

[0047] One end of the liquid pipe 5 is connected to the hollow tube cavity of the mounting frame 6, and the other end of the liquid pipe 5 is connected to the water supply tank outside the main shell 1. A water pump is provided at the connection between the liquid pipe 5 and the water supply tank. The water in the external water supply tank can be pumped into the liquid pipe 5 by the water pump to meet the spraying requirements of the spray head 7. In addition, the pressure of the water pump can be adjusted as needed to facilitate the control of the spray size of the spray head 7 and to thoroughly filter the dust and sulfide in the flue gas.

[0048] A sewage purification device is provided at the drainage outlet of the drainage pipe 14 , and a detachable filtering device is provided at the position where the drainage pipe 14 is connected to the sewage purification device.

[0049] The dust filtered out from the main housing 1 is filtered out by the filter device, while the sulfide compatible with water enters the sewage purification device through the drain pipe 14 and is thoroughly purified, which is convenient for the recycling of sewage and saves water resources.

[0050] Embodiment 2

[0051] On the basis of Example 1, the liquid pipeline 5 can be connected to an external alkaline absorbent storage device, and the spray head 7 can spray the alkaline absorbent on the flue gas, which can not only humidify the finer dust in the flue gas and make it fall onto the guide plate 8 inside the main shell 1 and be cleaned, but also ensure that the alkaline absorbent and the sulfide in the flue gas fully react, neutralize the sulfide in the flue gas, and convert it into relatively stable salts or other compounds, thereby reducing the pollution of the environment by sulfides. The alkaline absorbent sprayed by the spray head 7 can effectively treat the sulfide in the flue gas, reduce the harm of sulfides to the environment and human health, and improve the practicality of the device. At the same time, the device can pull out each guide plate 8 separately when filtering the flue gas normally, and clean the bristles 9 at the bottom of the guide plate 8, ensuring the flue gas cleaning effect while completing the cleaning of the bristles 9.

[0052] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or additions, subtractions or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A medium-low temperature smoke filter device that is easy to clean, comprising a main body shell (1), characterized in that: The main body shell (1) is a vertically arranged square shell, and a plurality of mounting grooves penetrating the main body shell (1) are provided on opposite side walls of the main body shell (1). The plurality of mounting grooves on the opposite side walls of the main body shell (1) are staggered, and guide plates (8) are slidably installed in the mounting grooves. The width of the guide plates (8) is adapted to the inner diameter of the main body shell (1), and the length of the guide plates (8) is four fifths of the inner diameter of the main body shell (1). The guide plates (8) in the plurality of staggered mounting grooves form an S-shaped loop inside the main body shell (1). A plurality of spray heads (7) are installed on the top of the main body shell (1) through a mounting frame (6), and the plurality of spray heads (7) are arranged facing the top of the guide plates (8). Bristles (9) are provided on the bottom surface of the guide plates (8), and filter teeth (12) adapted to the bristles (9) are installed at the mounting grooves.

2. The medium and low temperature flue gas filter device that is easy to clean according to claim 1, characterized in that: A baffle plate (10) is provided at one end of the guide plate (8) close to the installation groove, and a push-pull plate (11) is provided at the upper end of the baffle plate (10).

3. The medium and low temperature flue gas filter device that is easy to clean according to claim 1, characterized in that: A water tank (13) is provided at the bottom of the main body shell (1), and a drainage pipe (14) is provided at one side of the bottom of the water tank (13).

4. The medium and low temperature flue gas filter device that is easy to clean according to claim 1, characterized in that: An air intake duct (3) is provided on one side of the bottom of the main shell (1), and the top of the main shell (1) is connected to an exhaust duct (4) via an air collecting hood (2).

5. The medium and low temperature flue gas filter device that is easy to clean according to claim 1, characterized in that: The mounting frame (6) has a hollow tube cavity, a liquid pipeline (5) connected to the mounting frame (6) is arranged on one side of the top of the main body shell (1), and the spray head (7) is connected to the hollow tube cavity of the mounting frame (6).

6. The medium and low temperature flue gas filter device that is easy to clean according to claim 1, characterized in that: Two adjacent guide plates (8) are parallel to each other, the top surface of the guide plate (8) is a plane, and the bottom surface of the guide plate (8) is provided with bristles (9) in an array.

7. The easy-to-clean low-temperature flue gas filtering device according to claim 1, characterized in that: The bristles (9) are made of elastic metal material, and the spacing between the filter teeth (12) is adapted to the bristles (9).

8. The easy-to-clean medium-low temperature flue gas filtering device according to claim 5, characterized in that: One end of the liquid pipeline (5) is connected to the hollow tube cavity of the mounting frame (6), and the other end of the liquid pipeline (5) is connected to the water supply tank outside the main shell (1). A water pump is provided at the connection between the liquid pipeline (5) and the water supply tank.

9. The easy-to-clean low-temperature flue gas filtering device according to claim 3, characterized in that: A sewage purification device is provided at the drainage outlet of the drainage pipe (14), and a detachable filtering device is provided at the position where the drainage pipe (14) is connected to the sewage purification device.

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