Feed production exhaust gas purification apparatus and method

Abstract

The application discloses a kind of feed production exhaust gas purification equipment and method, including purification tank body, cleaning component and filter component;The waste gas treatment section and waste liquid treatment section are provided on the purification tank body, the outer wall of the waste gas treatment section is close to the waste liquid treatment section and is provided with air inlet pipe, the top of the waste gas treatment section is away from air inlet pipe and is provided with air outlet pipe;When the impurities are adsorbed on the conical filter cloth and too much, the conical filter cloth will slide upward under the action of waste gas, so that the connecting plate drives the connecting ring and the baffle on the connecting ring and the sliding ring fixedly connected with the baffle slide upward as a whole, the baffle is separated from the atomizing nozzle, the water outlet of the atomizing nozzle cleans the conical filter cloth, until the impurities at the filter hole position of the conical filter cloth are cleaned, ensure the filtering and purifying effect of the conical filter cloth, prevent clogging and reduce the purification efficiency, not only save manpower but also reduce the cost of frequent replacement of filter plate, while ensuring the purification and filtering effect of waste gas.

Description

Technical Field

[0001] This invention relates to the field of feed production technology, specifically to a feed production waste gas purification device and method. Background Technology

[0002] During feed production, processes such as crushing, mixing, and pelleting of raw materials generate a large amount of waste gas, which mainly contains pollutants such as dust, harmful gases, and volatile organic compounds. Direct emission into the atmosphere will not only cause serious environmental pollution but also harm the health of nearby residents. Therefore, purifying and treating feed production waste gas is of paramount importance.

[0003] However, in current technologies, purification equipment requires frequent replacement of combined purification components to ensure the effectiveness of waste gas purification, leading to a significant waste of human resources. Furthermore, the frequent replacement of these components as consumables increases material costs, consequently affecting the normal production and filtration efficiency of waste gas purification. Therefore, this paper proposes a waste gas purification device and method for feed production. Summary of the Invention

[0004] The purpose of this invention is to provide a feed production waste gas purification device and method to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides a feed production waste gas purification device, comprising a purification tank, a cleaning component, and a filter component. The purification tank is provided with a waste gas treatment section and a waste liquid treatment section. An air inlet pipe is provided on the outer wall of the waste gas treatment section near the waste liquid treatment section, and an air outlet pipe is provided at the top of the waste gas treatment section away from the air inlet pipe. A liquid inlet pipe is provided on the outer wall of the waste liquid treatment section near the waste gas treatment section, and a liquid outlet pipe is provided at the bottom of the waste liquid treatment section. The cleaning component includes a cleaning pipe, a movable ring, and a limiting crossbar. A water flow channel is provided inside the cleaning pipe, and a water inlet section and a water spray section are sequentially arranged on the cleaning pipe. The water inlet section penetrates through the top center of the purification tank and is fixedly connected to the purification tank. The center of the limiting crossbar is fixedly connected to the bottom of the cleaning pipe. The movable ring is set inside the water inlet section and slidably connected to the inner wall of the water inlet section. A water pipe is fixedly connected to the movable ring. Several atomizing nozzles are set near the bottom of the spray section. The filter assembly includes a connecting ring, a sliding ring, several baffles, several connecting plates, and a conical filter cloth. The inner walls of the connecting ring and the sliding ring are slidably sleeved with the outer surface of the spray section. One end of each baffle is fixed to the connecting ring, and the other end of each baffle is fixed to the sliding ring. The baffles correspond to the atomizing nozzles. One end of each connecting plate is evenly fixed on the side adjacent to the connecting ring and the baffle. The other end of each connecting plate is fixedly connected to the large end of the conical filter cloth.

[0006] Furthermore, it also includes a mounting bracket, which comprises several fixed columns and a fixing ring. The inner wall of the fixing ring is fixedly fitted onto the outer surface of the purification tank, and the side of the fixing ring adjacent to the purification tank is fixedly installed at one end of the several fixed columns.

[0007] Furthermore, the atomizing nozzle is located in the concave region of the conical filter cloth.

[0008] Furthermore, the waste liquid treatment section is funnel-shaped with a V-shaped ramp on its inner wall, and both the inlet pipe and the outlet pipe are equipped with valves.

[0009] Furthermore, the adjacent connecting plates each form a fan-shaped flow area.

[0010] Furthermore, a limit ring is fixedly fitted onto the water spray section of the cleaning pipe near the water inlet section.

[0011] Furthermore, the conical filter cloth has a bottom ring at its small end that slides and engages with the water spray section.

[0012] This invention also provides a method for purifying waste gas from feed production, the method comprising the following steps:

[0013] S1. The dust and exhaust gas from the feed mill are sent into the purification tank through the air inlet pipe;

[0014] S2. When the dust and exhaust gas from the feed mill passes through the conical filter cloth, impurities will be blocked at the bottom and outer periphery of the conical filter cloth, and the filtered gas will be discharged through the outlet pipe.

[0015] S3. When too many impurities accumulate at the filter holes of the conical filter cloth, and the exhaust gas cannot pass through the conical filter cloth, the conical filter cloth slides upward under the action of the exhaust gas until the baffle no longer blocks the atomizing nozzle. Water flows from the water pipe through the inlet section of the cleaning pipe into the spray section, and finally sprays out from the atomizing nozzle on the spray section until the impurities at the filter holes of the conical filter cloth are cleaned. When the exhaust gas can pass through the conical filter cloth, the conical filter cloth will slide down, and the baffle will block the atomizing nozzle again.

[0016] S4. When it is necessary to clean the inner wall of the purification tank, open the valve on the inlet pipe to introduce external water to rinse the inner wall of the purification tank. After rinsing, open the valve on the outlet pipe to discharge the rinsed wastewater, thus cleaning the inner wall of the purification tank.

[0017] Beneficial effects:

[0018] 1. When the conical filter cloth of this invention has no or only a small amount of impurities, the exhaust gas can be filtered through the conical filter cloth. The bottom ring at the lower end of the conical filter cloth is in contact with the upper surface of the limiting crossbar. At this time, the baffle blocks the atomizing nozzle, and the water flow cannot be sprayed out through the atomizing nozzle, thus avoiding water waste. When the conical filter cloth adsorbs impurities and there are too many impurities, the conical filter cloth will slide upward under the action of the exhaust gas, causing the connecting plate to drive the connecting ring, the baffle on the connecting ring, and the sliding ring fixedly connected to the baffle to slide upward as a whole. This releases the restriction of the baffle on the atomizing nozzle, and the baffle separates from the atomizing nozzle, making it easier for the atomizing nozzle to output water. The water flow cleans the conical filter cloth through the atomizing nozzle until the impurities at the filter holes of the conical filter cloth are cleaned, ensuring the filtration and purification effect of the conical filter cloth, preventing clogging and reducing purification efficiency, saving the step of removing and replacing the exhaust gas filter plate, making the operation more convenient and quick. It not only saves manpower but also reduces the cost of frequently replacing filter plates, while ensuring the purification and filtration effect of the exhaust gas.

[0019] 2. This invention effectively increases the contact area between the conical filter cloth and toxic gases by setting the conical filter cloth to a conical shape. It can effectively filter and purify toxic gases generated during feed production, ensuring that the discharged gas meets the requirements. The atomizing nozzle is located in the concave area of ​​the conical filter cloth, which ensures that the rinsing water can directly act on the surface of the conical filter cloth and the concave part below it, ensuring that all parts of the conical filter cloth are fully rinsed, preventing local blockage or reduced filtration efficiency due to inadequate rinsing. The design of the atomizing nozzle allows the water to be sprayed out in the form of a mist. This atomized rinsing method can more evenly cover the surface of the conical filter cloth, improving the rinsing effect. At the same time, the misty water can more effectively penetrate into the fiber gaps of the conical filter cloth to remove trapped impurities. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the feed production waste gas purification equipment of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the internal cleaning component of the exhaust gas purification equipment of the present invention;

[0023] Figure 3 This is a cross-sectional view of the cleaning tube of the present invention;

[0024] Figure 4 This is a three-dimensional structural diagram of the filter assembly of the present invention;

[0025] In the picture:

[0026] Purification tank 10; exhaust gas treatment section 10a; waste liquid treatment section 10b; air inlet pipe 11; air outlet pipe 12; liquid inlet pipe 13; liquid outlet pipe 14; cleaning component 20; cleaning pipe 21; water inlet section 21a; water spray section 21b; atomizing nozzle 21c; movable ring 22; limit crossbar 23; limit ring 24; filter component 30; connecting ring 31; sliding ring 32; baffle 33; connecting plate 34; conical filter cloth 35; bottom ring 35a; mounting bracket 40; fixing column 41; fixing ring 42. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1-4 As shown, the present invention provides a feed production waste gas purification device, including a purification tank 10, a cleaning component 20, and a filter component 30; the purification tank 10 is provided with a waste gas treatment section 10a and a waste liquid treatment section 10b. An air inlet pipe 11 is provided on the outer wall of the waste gas treatment section 10a near the waste liquid treatment section 10b, and an air outlet pipe 12 is provided at the top of the waste gas treatment section 10a away from the air inlet pipe 11. An inlet pipe 13 is provided on the outer wall of the waste liquid treatment section 10b near the waste gas treatment section 10a, and an outlet pipe 14 is provided at the bottom of the waste liquid treatment section 10b. The waste liquid treatment section 10b is a leak-proof section. The device is shaped like a bucket with a V-shaped ramp on its inner wall. This ramp guides the waste liquid to flow more smoothly inside the waste liquid treatment section 10b. Due to the angle of the ramp, the waste liquid will flow quickly along the ramp to the outlet pipe 14 of the waste liquid treatment section 10b under the action of gravity, reducing the residence time of the waste liquid in the bucket and thus improving the efficiency of waste liquid treatment. The V-shaped ramp inside the waste liquid treatment section 10b also helps to balance the distribution of waste liquid in the bucket, reducing the center of gravity shift caused by waste liquid accumulation, thereby improving the overall stability of the equipment. Both the inlet pipe 13 and the outlet pipe 14 are equipped with valves.

[0029] like Figure 2 and Figure 3As shown, the cleaning component 20 includes a cleaning pipe 21, a movable ring 22, and a limiting crossbar 23. A water flow channel is provided inside the cleaning pipe 21. An inlet section 21a and a spray section 21b are sequentially arranged on the cleaning pipe 21. The inlet section 21a penetrates the top center of the purification tank 10 and is fixedly connected to the purification tank 10. The center of the limiting crossbar 23 is fixedly connected to the bottom of the cleaning pipe 21. The limiting crossbar 23 prevents the filter component 30 from falling downwards. The movable ring 22 is located inside the inlet section 21a and is slidably connected to the inner wall of the inlet section 21a. A water pipe is fixedly connected to the movable ring 22. Several atomizing nozzles 21c are arranged near the bottom of the spray section 21b. A limiting ring 24 is fixedly sleeved on the spray section 21b of the cleaning pipe 21 near the inlet section 21a. The limiting ring 24 prevents the filter component 30 from colliding with the top inner wall of the purification tank 10 when it moves upwards, thus preventing damage to the filter component 30 and affecting the filtration of exhaust gas.

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, the filter assembly 30 includes a connecting ring 31, a sliding ring 32, several baffles 33, several connecting plates 34, and a conical filter cloth 35. The inner walls of the connecting ring 31 and the sliding ring 32 are slidably sleeved with the outer surface of the spray section 21b. One end of each baffle 33 is fixed to the connecting ring 31, and the other end of each baffle 33 is fixed to the sliding ring 32. The baffles 33 correspond to the atomizing nozzles 21c and effectively block the atomizing nozzles 21c, avoiding water waste. One end of each connecting plate 34 is evenly fixed on the side adjacent to the connecting ring 31 and the baffle 33, and the other end of each connecting plate 34 is fixedly connected to the large end of the conical filter cloth 35. The small end of the conical filter cloth 35 is provided with a bottom ring 35a that slidably sleeves with the spray section 21b. By setting the conical filter cloth 35 into a conical shape, the contact area between the conical filter cloth 35 and the toxic gas is effectively increased, which can effectively filter the toxic gas generated during feed production. The system filters and purifies the gas to ensure that the discharged gas meets the requirements. The atomizing nozzle 21c is located in the concave area of ​​the conical filter cloth 35, which ensures that the rinsing water flow can directly act on the surface of the conical filter cloth 35 and the concave part below it, ensuring that all parts of the conical filter cloth 35 are fully rinsed, preventing local blockage or reduced filtration efficiency due to inadequate rinsing. The design of the atomizing nozzle 21c allows the water flow to be sprayed out in the form of a mist. This atomized rinsing method can more evenly cover the surface of the conical filter cloth 35, improving the rinsing effect. At the same time, the misty water flow can more effectively penetrate into the fiber gaps of the conical filter cloth 35 to remove trapped impurities. Adjacent connecting plates 34 form fan-shaped flow areas. The fan-shaped flow areas can make the exhaust gas come into more full contact with the conical filter cloth 35 when passing through the purification equipment, which helps to more effectively adsorb harmful substances in the exhaust gas, thereby improving the purification effect and facilitating better discharge of the filtered exhaust gas.

[0031] In use, the dust and exhaust gas generated during feed production is sent into the purification tank 10 through the inlet pipe 11. As the exhaust gas rises, it is filtered through the conical filter cloth 35. The clean gas after filtration through the conical filter cloth 35 is discharged from the outlet pipe 12 at the top of the purification tank 10, achieving the purpose of purifying the exhaust gas. When the conical filter cloth 35 has no or only a small amount of impurities, the exhaust gas can be filtered through it. The bottom ring 35a at the lower end of the conical filter cloth 35 contacts the upper surface of the limiting crossbar 23. At this time, the baffle 33 blocks the atomizing nozzle 21c, preventing water from being sprayed out through the atomizing nozzle 21c, thus avoiding water waste. When the conical filter cloth 35 adsorbs impurities and there are too many impurities, the conical filter cloth 35 will slide upwards under the action of the exhaust gas, causing the connecting plate 3... 4. The connecting ring 31, the baffle 33 on the connecting ring 31, and the sliding ring 32 fixedly connected to the baffle 33 slide upward as a whole, releasing the restriction of the baffle 33 on the atomizing nozzle 21c. The baffle 33 separates from the atomizing nozzle 21c, making it easier for water to flow out of the atomizing nozzle 21c. The water flows through the atomizing nozzle 21c to clean the conical filter cloth 35 until the impurities at the filter holes of the conical filter cloth 35 are cleaned, ensuring the filtration and purification effect of the conical filter cloth 35 and preventing clogging that reduces purification efficiency. After the impurities at the filter holes of the conical filter cloth 35 are cleaned, the overall gravity of the filter assembly 30 is greater than the force of the exhaust gas, causing the filter assembly 30 to slide downward as a whole until the baffle 33 covers the atomizing nozzle 21c again, and then the exhaust gas is filtered and purified again.

[0032] By cooperating with the cleaning component 20 and the filter component 30, the purification tank 10 can effectively clean the conical filter cloth 35 according to the actual filtration situation when filtering and purifying the exhaust gas. This ensures that the conical filter cloth 35 maintains an effective filtration and purification effect, keeps the conical filter cloth 35 clean and tidy, saves the step of removing and replacing the exhaust gas filter plate, and makes the operation more convenient and quick. It not only saves manpower but also reduces the cost of frequent filter plate replacements, while ensuring the purification and filtration effect of the exhaust gas.

[0033] The present invention also includes a waste liquid treatment section 10b, which can effectively discharge the wastewater generated during the cleaning of the conical filter cloth 35 in a timely manner, avoiding the accumulation of wastewater. Clean water is injected into the purification tank 10 through the inlet pipe 13, and the impurities washed off the conical filter cloth 35 are washed into the waste liquid treatment section 10b, ensuring a clean environment inside the purification tank 10. After rinsing, the waste liquid falls into the waste liquid treatment section 10b and flows rapidly to the outlet pipe 14 through the V-shaped ramp inside the waste liquid treatment section 10b. The valve on the outlet pipe 14 is opened to discharge the waste liquid, thereby ensuring the cleanliness of the inside of the purification tank 10 and improving the effect of exhaust gas purification.

[0034] like Figure 1As shown, the exhaust gas purification equipment also includes a mounting bracket 40, which includes several fixing columns 41 and fixing rings 42. The inner wall of the fixing rings 42 is fixedly sleeved on the outer surface of the purification tank 10. The side of the fixing rings 42 adjacent to the purification tank 10 is fixedly installed at one end of the several fixing columns 41 to facilitate the fixing of the purification tank 10.

[0035] The method for using the exhaust gas purification equipment in this solution includes the following steps:

[0036] S1. The dust and exhaust gas from the feed mill are sent into the purification tank 10 through the air inlet pipe 11.

[0037] S2. When the dust and exhaust gas from the feed mill passes through the conical filter cloth 35, impurities will be blocked at the bottom periphery of the conical filter cloth 35, and the filtered gas will be discharged through the exhaust pipe 12.

[0038] S3. When too many impurities accumulate at the filter holes of the conical filter cloth 35, and the exhaust gas cannot pass through the conical filter cloth 35, the conical filter cloth 35 slides upward under the action of the exhaust gas until the baffle 33 no longer blocks the atomizing nozzle 21c. Water flows from the water pipe through the water inlet section 21a of the cleaning pipe 21 into the water spray section 21b, and finally sprays out from the atomizing nozzle 21c opened on the water spray section 21b until the impurities at the filter holes of the conical filter cloth 35 are cleaned. When the exhaust gas can pass through the conical filter cloth 35, the conical filter cloth 35 will slide down, and the baffle 33 will block the atomizing nozzle 21c again.

[0039] S4. When it is necessary to clean the inner wall of the purification tank 10, open the valve on the inlet pipe 13 to introduce external water source to rinse the inner wall of the purification tank 10. After rinsing, open the valve on the outlet pipe 14 to discharge the rinsed wastewater, thereby cleaning the inner wall of the purification tank 10.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feed production waste gas purification device, characterized in that, The utility model provides a waste gas and liquid purification tank, which comprises a purification tank body (10), a cleaning assembly (20) and a filtering assembly (30); the purification tank body (10) is provided with a waste gas treatment section (10a) and a waste liquid treatment section (10b); the waste gas treatment section (10a) is provided with an air inlet pipe (11) on the outer wall close to the waste liquid treatment section (10b); the top of the waste gas treatment section (10a) away from the air inlet pipe (11) is provided with an air outlet pipe (12); the waste liquid treatment section (10b) is provided with a liquid inlet pipe (13) on the outer wall close to the waste gas treatment section (10a); the bottom of the waste liquid treatment section (10b) is provided with a liquid outlet pipe (14). The cleaning assembly (20) comprises a cleaning pipe (21), a movable ring (22) and a limiting cross rod (23); the cleaning pipe (21) is provided with a water flow channel; the cleaning pipe (21) is sequentially provided with a water inlet section (21a) and a water spraying section (21b); the water inlet section (21a) penetrates through the top center of the purification tank body (10) and is fixedly connected with the purification tank body (10); the center of the limiting cross rod (23) is fixedly connected with the bottom of the cleaning pipe (21); the movable ring (22) is arranged in the water inlet section (21a) and is slidably connected with the inner wall of the water inlet section (21a); the movable ring (22) is fixedly connected with a water pipe; the water spraying section (21b) is provided with a plurality of atomizing nozzles (21c) at a position close to the bottom. The filtering assembly (30) comprises a connecting ring (31), a sliding ring (32), a plurality of baffles (33), a plurality of connecting plates (34) and a conical filter cloth (35); the inner walls of the connecting ring (31) and the sliding ring (32) are slidably sleeved with the outer surface of the water spraying section (21b); one end of each baffle (33) is fixedly connected with the connecting ring (31); the other end of each baffle (33) is fixedly connected with the sliding ring (32); the baffles (33) correspond to the atomizing nozzles (21c); one end of each connecting plate (34) is fixedly connected with the side of the connecting ring (31) adjacent to the baffle (33); the other end of each connecting plate (34) is fixedly connected with the large-end of the conical filter cloth (35); the small-end of the conical filter cloth (35) is provided with a bottom ring (35a) slidably sleeved with the water spraying section (21b); the bottom ring (35a) at the lower end of the conical filter cloth (35) is in contact with the upper surface of the limiting cross rod (23); at this time, the baffles (33) block the atomizing nozzles (21c), and water flow cannot be sprayed out through the atomizing nozzles (21c).

2. The exhaust gas purification apparatus according to claim 1, characterized by: The utility model also comprises a mounting bracket (40); the mounting bracket (40) comprises a plurality of fixed columns (41) and a fixed ring (42); the inner wall of the fixed ring (42) is fixedly sleeved with the outer surface of the purification tank body (10); the fixed ring (42) is fixedly installed on one end of the plurality of fixed columns (41) on the side adjacent to the purification tank body (10).

3. The exhaust gas purification apparatus according to claim 1, characterized by: The atomizing nozzles (21c) are located in the concave area of the conical filter cloth (35).

4. The exhaust gas purification apparatus according to claim 1, characterized by: The waste liquid treatment section (10b) is funnel-shaped and is provided with a V-shaped slope on the inner wall; the liquid inlet pipe (13) and the liquid outlet pipe (14) are each provided with a valve.

5. The exhaust gas purification apparatus according to claim 1, characterized by: The connecting plates (34) are each formed as a sector-shaped flow area.

6. The exhaust gas purification apparatus according to claim 1, characterized by: The water spraying section (21b) of the cleaning pipe (21) is fixed with a limiting ring (24) near the water inlet section (21a).

7. A method for purifying exhaust gas from a feed production, characterized by, The method comprises the following steps: S1, feeding the feed mill dust exhaust gas into the inside of the purification tank (10) through the air inlet pipe (11); S2, when the feed mill dust exhaust gas passes through the conical filter cloth (35), impurities are blocked at the bottom periphery of the conical filter cloth (35), and the filtered gas is discharged through the air outlet pipe (12); S3, when the impurities accumulated at the filter hole position of the conical filter cloth (35) are too much, the exhaust gas cannot pass through the conical filter cloth (35), the conical filter cloth (35) slides upward under the action of the exhaust gas until the baffle (33) no longer blocks the atomizing nozzle (21c), water flows into the water spraying section (21b) from the water inlet section (21a) of the cleaning pipe (21) through the water pipe, and finally is sprayed out from the atomizing nozzle (21c) opened on the water spraying section (21b), until the impurities at the filter hole position of the conical filter cloth (35) are cleaned, when the exhaust gas can pass through the conical filter cloth (35), the conical filter cloth (35) slides downward, and the baffle (33) blocks the atomizing nozzle (21c) again; S4, when it is necessary to clean the inner wall of the purification tank (10), open the valve on the liquid inlet pipe (13) to introduce external water source to flush the inner wall of the purification tank (10), open the valve on the liquid outlet pipe (14) to discharge the flushed wastewater after flushing, and realize the cleaning of the inner wall of the purification tank (10).

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