Smelting tail gas treatment equipment based on environmental protection

Abstract

The invention relates to the field of tail gas treatment, in particular to environment-friendly smelting tail gas treatment equipment which comprises a shell, a gas inlet pipe, a gas outlet pipe, an upper partition plate, a lower partition plate, a dust removal cloth bag and the like. The shell communicates with an air inlet pipe; the shell communicates with an air outlet pipe; an upper partition plate is fixedly connected into the shell. A lower partition plate is fixedly connected into the shell. A plurality of through holes are correspondingly formed in the upper partition plate and the lower partition plate, and a detachable dust removal cloth bag is connected between every two vertically corresponding through holes and used for filtering metal dust. The arc-shaped baffle is driven by the connecting rod to rotate to form a closed cylinder to wrap the side part of the dust collecting bag, and then metal dust attached to the inner wall of the bag is reversely blown and removed by the blowing port, so that the collecting efficiency of the metal dust is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tail gas treatment, in particular to a smelting tail gas treatment equipment based on environmental protection. BACKGROUND

[0002] Metallurgical tail gas refers to the waste gas generated in the process of metal smelting, which contains harmful components such as sulfur dioxide, carbon monoxide, nitrogen oxides and metal dust. Direct discharge will pollute the environment. People usually use bag dust collectors to preliminarily treat the tail gas, so as to recycle the metal dust in the tail gas, and then treat the harmful components in the tail gas.

[0003] The existing Chinese patent with publication number CN119524540A proposes a convenient cleaning bag dust collector for metallurgical casting. The patent filters the dust in the waste gas through the outer surface of the bag, and blows off the dust on the outer surface of the bag by setting a movable nozzle inside the bag, so as to achieve the effect of cleaning the dust. However, when filtering and recycling the metal dust in the tail gas, the metal dust filtered on the outer surface of the bag will be blown by the incoming waste gas, so that the filtered metal dust will be scattered everywhere and fill the entire equipment, thereby increasing the difficulty of subsequent metal dust recycling. Moreover, the existing technology lacks real-time monitoring of the use of the bag. When a bag is damaged, it cannot be found in time, which may affect the stable operation of the overall equipment.

[0004] In summary, the present application proposes a smelting tail gas treatment equipment based on environmental protection to improve the above-mentioned technical problems. SUMMARY

[0005] In order to overcome the shortcomings that the metal dust filtered on the outer surface of the bag will be blown by the incoming waste gas, so that the filtered metal dust will be scattered everywhere and fill the entire equipment, thereby increasing the difficulty of subsequent metal dust recycling, the present application provides a smelting tail gas treatment equipment based on environmental protection.

[0006] The technical scheme is as follows: a smelting tail gas treatment equipment based on environmental protection, comprising a shell, an air inlet pipe and an air outlet pipe; the shell is connected with the air inlet pipe; the shell is connected with the air outlet pipe; further comprising an upper partition plate, a lower partition plate, a dust removal bag, a blocking unit and a collection hopper; the upper partition plate is fixedly connected inside the shell; the lower partition plate is fixedly connected inside the shell and located below the upper partition plate; a plurality of through holes are formed in the upper partition plate and the lower partition plate in correspondence, and each through hole is connected with a detachable dust removal bag above and below for filtering metal dust, and the dust removal bag is provided in an upwardly open and downwardly open manner; the shell is connected with a plurality of blocking units for blocking the upper end opening and the lower end opening of the dust removal bag; the shell is slidingly connected with a collection hopper for collecting metal dust, and the collection hopper is located below the lower partition plate.

[0007] As a further preferred, the blocking unit comprises a driving motor, a rotating rod, an upper sliding rod, a cover plate, a lower sliding rod and a bottom plate; the shell is fixedly connected with the driving motor; the shell is rotatably connected with the rotating rod, the output shaft of the driving motor is fixedly connected with the corresponding rotating rod, and the rotating rod is located at the center of the corresponding dust cloth bag; the upper end and the lower end of each rotating rod are provided with a spiral part; the upper side of the upper partition plate is fixedly connected with a plurality of upper sliding rods; the spiral part of the upper end of each rotating rod is rotatably connected with a cover plate, and the cover plate is slidably connected with the corresponding upper sliding rod; the lower side of the lower partition plate is fixedly connected with a plurality of lower sliding rods; the spiral part of the lower end of each rotating rod is rotatably connected with a bottom plate, and the bottom plate is slidably connected with the corresponding lower sliding rod.

[0008] As a further preferred, it further comprises a gas conveying pipe, an annular pipe, a hose, a connecting rod, an arc-shaped baffle and a driving unit; the bottom of the lower partition plate is fixedly connected with the gas conveying pipe, and the gas conveying pipe is connected with an external pump through the shell; each through hole of the lower partition plate is fixedly connected with an annular pipe, and the annular pipe is in communication with the gas conveying pipe, and the annular pipe is provided with an electric control valve; the periphery of each through hole of the lower partition plate is rotatably connected with a plurality of connecting rods arranged in an annular array, and the upper end of the connecting rod is rotatably connected with the upper partition plate; each connecting rod is fixedly connected with an arc-shaped baffle, and a cylinder is formed by rotating the connecting rod and the arc-shaped baffle to surround the dust cloth bag; the bottom of the lower partition plate is connected with a plurality of driving units, the driving units are connected with the connecting rods, and the driving units are used to drive the connecting rods to rotate; the connecting rod is provided in a hollow structure; each annular pipe is in communication with a plurality of hoses, and the hoses are in communication with the inside of the corresponding connecting rod; each connecting rod is provided with a plurality of air blowing ports.

[0009] As a further preferred, the driving unit comprises an annular electric sliding block, a gear ring and a gear; the bottom of the lower partition plate is slidably connected with the annular electric sliding block through an annular sliding rail; the annular electric sliding block is fixedly connected with the gear ring; each connecting rod is fixedly connected with a gear, and the gear is engaged with the gear ring.

[0010] As a further preferred, the air blowing port is inclined downward.

[0011] As a further preferred, it further comprises an elastic sheet and a knocking rod; each connecting rod is fixedly connected with a plurality of elastic sheets; each elastic sheet is fixedly connected with a knocking rod.

[0012] As a further preferred, it further comprises a connecting plate, a supporting plate, a micro motor and a pressing plate; the upper side and the lower side of the rotating rod are fixedly connected with a plurality of connecting plates arranged in an annular array; each of the upper and lower corresponding two connecting plates is rotatably connected with a supporting plate, and the supporting plate is in contact with the inner wall of the dust cloth bag; the connecting plate located on the upper side is fixedly connected with a micro motor, and the output shaft of the micro motor is fixedly connected with the supporting plate; each supporting plate is fixedly connected with a pressing plate.

[0013] As a further preferred solution, the bottom plate upper side is provided with a tapered surface with a middle higher and four sides lower.

[0014] As a further preferred solution, the gas pressure detector is further comprised; a gas pressure detector is fixedly connected to each lower partition hole, and the gas pressure detector is located between the dust cloth bag and the connecting rod.

[0015] As a further preferred solution, the lower slide rod upper end is provided with a threaded part, and the lower slide rod is screwed with the lower partition through the threaded part.

[0016] Beneficial effects: The connecting rod drives the arc-shaped baffle to rotate to form a closed cylinder to wrap the side of the dust cloth bag, and then the gas blowing port blows to remove the metal dust attached to the inner wall of the dust cloth bag, thereby improving the collection efficiency of the metal dust; the extrusion plate extrudes and opens the dust cloth bag, so that the filter hole of the dust cloth bag is expanded, so that the metal dust embedded in the dust cloth bag is blown out by the gas blowing port, thereby improving the cleaning effect of the dust cloth bag.

[0017] The gas pressure detector detects the gas pressure between the cylinder formed by the rotation of the arc-shaped baffle and the outer surface of the dust cloth bag at regular time, and compares it with the initial gas pressure value, thereby regularly checking the use of the dust cloth bag, avoiding the influence of the operation due to the failure of individual bags not being found in time, and easily affecting the stable operation of the overall equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure schematic view of the smelting tail gas treatment equipment based on environmental protection is disclosed in the present application; Figure 2 The side view of the smelting tail gas treatment equipment based on environmental protection is disclosed in the present application; Figure 3 The structure schematic view of the inside of the shell is disclosed in the present application; Figure 4 The structure schematic view of the combination of the dust cloth bag, the driving motor, the rotating rod, the upper slide rod and the cover plate is disclosed in the present application; Figure 5 The structure schematic view of the combination of the lower partition, the dust cloth bag, the lower slide rod and the bottom plate is disclosed in the present application; Figure 6 The structure schematic view of the combination of the driving motor, the rotating rod, the cover plate, the connecting plate, the supporting plate, the micro motor and the extrusion plate is disclosed in the present application; Figure 7 The structure schematic view of the combination of the rotating rod, the lower slide rod, the bottom plate, the connecting plate, the supporting plate and the extrusion plate is disclosed in the present application; Figure 8 The structure schematic view of the combination of the lower partition, the gas conveying pipe and the annular pipe is disclosed in the present application; Figure 9Structure schematic view of driving unit disclosed by the application; Figure 10 Structure schematic view of combination of connecting rod, arc-shaped baffle, elastic sheet and knocking rod disclosed by the application; Figure 11 State diagram of arc-shaped baffle rotating to surround dust removal cloth bag disclosed by the application.

[0019] Wherein: 1 - shell, 2 - air inlet pipe, 3 - air outlet pipe, 4 - upper partition, 5 - lower partition, 6 - dust removal cloth bag, 7 - driving motor, 8 - rotating rod, 9 - upper sliding rod, 10 - cover plate, 11 - lower sliding rod, 12 - bottom plate, 13 - collection hopper, 101 - connecting plate, 102 - support plate, 103 - micro motor, 104 - extrusion plate, 111 - air conveying pipe, 112 - annular pipe, 113 - hose, 114 - connecting rod, 115 - arc-shaped baffle, 116 - elastic sheet, 117 - knocking rod, 121 - annular electric sliding block, 122 - gear ring, 123 - gear, 201 - air pressure detector, 1101 - threaded part, 11401 - air blowing port. DETAILED DESCRIPTION

[0020] The application will be described in detail below in combination with the drawings and specific embodiments, but not as a limitation to the application.

[0021] Embodiment 1: A smelting tail gas treatment equipment based on environmental protection, referring to Figures 1-11 As shown in the figure, comprising a shell 1, an air inlet pipe 2 and an air outlet pipe 3; the shell 1 is communicated with the air inlet pipe 2 and the air outlet pipe 3; Further comprising an upper partition 4, a lower partition 5, a dust removal cloth bag 6, a plugging unit and a collection hopper 13; the shell 1 is internally fixedly connected with the upper partition 4; the shell 1 is internally fixedly connected with the lower partition 5, and the lower partition 5 is below the upper partition 4; the upper partition 4 and the lower partition 5 are each provided with a plurality of vertically aligned through holes, and each of the vertically aligned through holes of the upper partition 4 and the lower partition 5 is commonly connected with a dust removal cloth bag 6 through a bolt, and the dust removal cloth bag 6 is provided in an upper and lower opening shape; the shell 1 is connected with a plurality of plugging units; the shell 1 is slidingly connected with the collection hopper 13, and the collection hopper 13 is below the lower partition 5.

[0022] The blocking unit comprises a driving motor 7, a rotating rod 8, an upper sliding rod 9, a cover plate 10, a lower sliding rod 11 and a bottom plate 12; the driving motor 7 is fixedly connected to the shell 1; the rotating rod 8 is rotatably connected to the shell 1, the output shaft of the driving motor 7 is fixedly connected to the corresponding rotating rod 8, and the rotating rod 8 is located at the center of the corresponding dust cloth bag 6; the upper end and the lower end of each rotating rod 8 are provided with a spiral part; the upper side of the upper partition plate 4 is fixedly connected with a plurality of upper sliding rods 9; the spiral part of the upper end of each rotating rod 8 is rotatably connected with a cover plate 10, and the cover plate 10 is slidably connected with the corresponding upper sliding rod 9; the lower side of the lower partition plate 5 is fixedly connected with a plurality of lower sliding rods 11; the spiral part of the lower end of each rotating rod 8 is rotatably connected with a bottom plate 12, and the bottom plate 12 is slidably connected with the corresponding lower sliding rod 11.

[0023] Further comprising a gas conveying pipe 111, an annular pipe 112, a hose 113, a connecting rod 114, an arc-shaped baffle 115 and a driving unit; the gas conveying pipe 111 is fixedly connected to the bottom of the lower partition plate 5 and penetrates through the shell 1 to be connected with an external pump; one annular pipe 112 is fixedly connected to each through hole of the lower partition plate 5, the annular pipe 112 is communicated with the gas conveying pipe 111, and the annular pipe 112 is provided with an electric control valve; eight connecting rods 114 arranged in a ring array are rotatably connected to the periphery of each through hole of the lower partition plate 5, and the upper end of the connecting rod 114 is rotatably connected with the upper partition plate 4; one arc-shaped baffle 115 is fixedly connected to each connecting rod 114, and a cylinder is formed by rotating the connecting rod 114 and the arc-shaped baffle 115 to surround the dust cloth bag 6; a plurality of driving units are connected to the bottom of the lower partition plate 5, the driving unit is connected with the connecting rod 114, and the driving unit is used for driving the connecting rod 114 to rotate; the connecting rod 114 is provided in a hollow structure; a plurality of hoses 113 are communicated with each annular pipe 112, and the hose 113 is communicated with the inside of the corresponding connecting rod 114; a plurality of air blowing holes 11401 are formed in each connecting rod 114.

[0024] The driving unit comprises an annular electric sliding block 121, a gear ring 122 and a gear wheel 123; the annular electric sliding block 121 is slidably connected to the bottom of the lower partition plate 5 through an annular sliding rail; the gear ring 122 is fixedly connected to the annular electric sliding block 121; one gear wheel 123 is fixedly connected to each connecting rod 114, and the gear wheel 123 is engaged with the gear ring 122.

[0025] The air blowing hole 11401 is inclined downward, which can blow off the dust attached to the inner wall of the dust cloth bag 6 and guide the dust to fall out of the dust cloth bag 6.

[0026] Further comprising an elastic sheet 116 and a knocking rod 117; a plurality of elastic sheets 116 are fixedly connected to each connecting rod 114; one knocking rod 117 is fixedly connected to each elastic sheet 116.

[0027] Further include connecting plate 101, support plate 102, micro motor 103 and extrusion plate 104;Rotary rod 8 upper side and lower side each fixedly connected with four ring array distribution connecting plate 101;Each corresponding two connecting plate 101 of upper and lower is jointly rotatably connected with a support plate 102, and the support plate 102 is in contact with the inner wall of dust cloth bag 6;The connecting plate 101 located on the upper side is fixedly connected with a micro motor 103, and the output shaft of the micro motor 103 is fixedly connected with the support plate 102;Each support plate 102 is fixedly connected with an extrusion plate 104.

[0028] The bottom plate 12 upper side is provided with a conical surface with high in the middle and low at the four corners, so as to facilitate the metal dust to slide and collect in the collecting hopper 13 below.

[0029] When the existing metal dust in the metallurgical tail gas is filtered through the outer surface of the cloth bag, the metal dust filtered by the outer surface of the cloth bag will be blown by the continuously flowing tail gas, so that the filtered metal dust is scattered everywhere and filled in the whole equipment, thereby increasing the difficulty of subsequent metal dust recovery, and when the metal dust is recovered, the equipment needs to be stopped for cleaning, affecting the overall tail gas treatment efficiency;In order to solve the above problems, the present application proposes a smelting tail gas treatment equipment based on environmental protection, the specific operation is as follows: The metallurgical tail gas is introduced into the space above the upper partition plate 4 inside the shell 1 from the gas inlet pipe 2. In the normal working state, the cover plate 10 is located above the upper opening of the dust removal bag 6, and the bottom plate 12 seals the lower opening of the dust removal bag 6. The introduced tail gas enters the inside of the dust removal bag 6 from the upper opening of the dust removal bag 6, and after filtering the metal dust through the dust removal bag 6, the tail gas is discharged from the side of the dust removal bag 6 and introduced into the subsequent processing equipment through the gas outlet pipe 3 for purification treatment, and finally discharged to the outside, thereby avoiding the direct discharge of the metallurgical tail gas to the outside, which will pollute the external environment. At this time, the metal dust filtered by the dust removal bag 6 is collected inside the dust removal bag 6. When the dust removal bag 6 works to the set time, a certain amount of metal dust is collected in the dust removal bag 6, then the control drives the motor 7 to drive the rotating rod 8 to rotate, the rotating rod 8 drives the cover plate 10 to move downward along the upper slide rod 9 through the spiral part, seals the upper opening of the dust removal bag 6, stops the tail gas from entering the dust removal bag 6, and at the same time, the rotating rod 8 drives the bottom plate 12 to move downward along the lower slide rod 11, opens the lower opening of the dust removal bag 6, so that the metal dust collected in the inside of the dust removal bag 6 falls out, and finally collected in the collecting hopper 13 below, and the upper side of the bottom plate 12 is provided as a conical surface with high middle and low periphery, so as to facilitate the metal dust to slide off the upper side of the bottom plate 12 and be collected in the collecting hopper 13 below. After the metal dust in the dust removal bag 6 is discharged, the control drives the motor 7 to drive the rotating rod 8 to reverse, so that the cover plate 10 and the bottom plate 12 move upward to reset, reopen the upper opening of the dust removal bag 6, and seal the lower opening, continue to filter and treat the tail gas. In this way, the metal dust filtered by the dust removal bag 6 is collected inside the dust removal bag 6, preventing the introduced tail gas from blowing the metal dust filtered by the dust removal bag 6, so that it is scattered everywhere and filled in the entire equipment, increasing the difficulty of subsequent metal dust recovery. The cleaning time of each dust removal bag 6 is set to stagger, so that when a single dust removal bag 6 is cleaned, other dust removal bags 6 can still normally filter and treat the tail gas, avoiding the need to stop the equipment for cleaning when recovering metal dust, affecting the overall tail gas treatment efficiency. Then manually pull out the collecting hopper 13 to recover and treat the metal dust.

[0030] At the same time, considering that part of the metal dust will be embedded and attached to the inner wall of the dust removal bag 6 under the driving of the tail gas after long-term use of the dust removal bag 6, not only the filtered metal dust cannot be fully collected, but also the circulation of the tail gas is hindered, reducing the overall tail gas treatment efficiency. Therefore, after the cover plate 10 moves downward to seal the upper opening of the dust removal bag 6 and the bottom plate 12 moves downward to open the lower opening of the dust removal bag 6, the control drives the annular electric sliding block 121 to drive the gear ring 122 to rotate, the gear ring 122 drives the connecting rod 114 and the arc-shaped baffle 115 to rotate through the gear 123, until the arc-shaped baffle 115 contacts with the adjacent connecting rod 114, like Figure 11As shown, the connecting rod 114 and the arc-shaped baffle 115 rotate to form a closed cylinder, which wraps and isolates the side of the dust cloth bag 6, and then the external pump is controlled to sequentially pass the gas from the gas conveying pipe 111, the annular pipe 112 and the hose 113 into the connecting rod 114, and blow out from the blowout port 11401 and blow between the cylinder formed by the arc-shaped baffle 115 and the dust cloth bag 6, so that the gas is back-flushed from the outside to the inside of the dust cloth bag 6. By back-flushing the gas from the outside to the inside, the metal dust attached to the inner wall of the dust cloth bag 6 is blown off, thereby improving the collection efficiency of the metal dust. The blowout port 11401 is inclined downward, so that the metal dust is blown out while the metal dust inside the dust cloth bag 6 is driven to fall downward, thereby accelerating the cleaning and collection efficiency of the metal dust. During the back-flushing and cleaning of the dust cloth bag 6 by the blowout port 11401, the micro motor 103 drives the support plate 102 and the pressing plate 104 to rotate. When the pressing plate 104 rotates and contacts the dust cloth bag 6, the pressing plate 104 presses and opens the dust cloth bag 6, so that the filter holes of the dust cloth bag 6 are expanded, thereby facilitating the blowout of the metal dust embedded in the dust cloth bag 6 by the blowout port 11401, improving the cleaning effect of the dust cloth bag 6, and further increasing the service life of the dust cloth bag 6.

[0031] In addition, during the operation of the dust cloth bag 6, the annular electric sliding block 121 is periodically controlled to drive the connecting rod 114 to reciprocatingly rotate, and the connecting rod 114 drives the elastic sheet 116 and the knocking rod 117 to reciprocatingly rotate to knock and pat the dust cloth bag 6. During the operation of the dust cloth bag 6, the knocking rod 117 can periodically knock and pat the side wall of the dust cloth bag 6, so that the metal dust filtered by the side wall of the dust cloth bag 6 is shaken down in time, thereby preventing the metal dust remaining on the side wall of the dust cloth bag 6 from hindering the normal flow of the tail gas during the operation of the dust cloth bag 6, and ensuring the overall tail gas treatment efficiency.

[0032] Example 2: Based on example 1, referring to Figure 7 , Figure 10 and Figure 11 , further comprising an air pressure detector 201. The air pressure detector 201 is fixedly connected to the through hole of each lower partition plate 5, and is located between the dust cloth bag 6 and the connecting rod 114.

[0033] The lower slide rod 11 is provided with a threaded portion 1101, and the lower slide rod 11 is screwed with the lower partition plate 5 through the threaded portion 1101. By rotating and removing the lower slide rod 11, the bottom plate 12 is removed, so as to manually replace the dust cloth bag 6.

[0034] On the basis of the above embodiment 1, further, when using cloth bag to filter the exhaust gas, the cloth bag will inevitably be blocked, aging and wear after long-term use, and the prior art lacks real-time monitoring of the use of the cloth bag. When a cloth bag is damaged, it cannot be found in time, which can easily affect the stable operation of the overall equipment. And when replacing the cloth bag later, it needs to be replaced, which affects the continuous operation of the equipment and reduces the overall efficiency of the exhaust gas treatment. Therefore, the air pressure detector 201 is arranged between the dust removal cloth bag 6 and the connecting rod 114. After the new dust removal cloth bag 6 is installed, the cover plate 10 is lowered to block the upper end opening of the cloth bag, the bottom plate 12 is lowered to open the lower end opening of the dust removal cloth bag 6, and the connecting rod 114 and the arc-shaped baffle 115 are driven by the annular electric sliding block 121 to rotate to form a closed cylinder to surround the side of the dust removal cloth bag 6. At this time, the air pressure detector 201 is between the cylinder formed by the rotation of the arc-shaped baffle 115 and the outer surface of the dust removal cloth bag 6. The air blowing port 11401 is controlled to blow air at a specific air volume exceeding the rated filtering capacity of the cloth bag. The initial air pressure value measured by the air pressure detector 201 is recorded. Then the cover plate 10 and the bottom plate 12 are reset to the normal working state. Then the dust removal cloth bag 6 works to filter the exhaust gas. When the dust removal cloth bag 6 is used to a set time for cleaning and recycling metal dust, the same operation is performed. The cylinder formed by the rotation of the arc-shaped baffle 115 surrounds the dust removal cloth bag 6, and the dust removal cloth bag 6 is cleaned by the air blowing port 11401. After cleaning, the specific air volume is blown again. At this time, the air pressure detector 201 detects the air pressure between the cylinder and the outer surface of the dust removal cloth bag 6, and compares it with the initial air pressure value to check the use of the dust removal cloth bag 6. When the detected air pressure is higher than the initial air pressure value, it means that the dust removal cloth bag 6 is blocked. When the detected air pressure is lower than the initial air pressure value, it means that the dust removal cloth bag 6 is damaged. In this way, the air pressure detector 201 detects the air pressure between the cylinder formed by the rotation of the arc-shaped baffle 115 and the outer surface of the dust removal cloth bag 6 at regular intervals, and compares it with the initial air pressure value to regularly check the use of the dust removal cloth bag 6, so that when a cloth bag is damaged, it cannot be found in time, which can easily affect the stable operation of the overall equipment.

[0035] And when it is found that the dust removal cloth bag 6 is blocked or damaged, the closed cylinder formed by the arc-shaped baffle 115 cooperates with the cover plate 10 to isolate the damaged dust removal cloth bag 6 from the flowing exhaust gas. Then the collecting hopper 13 is completely pulled out, the lower slide rod 11 is rotated and taken out by hand, the bottom plate 12 is taken out, the damaged dust removal cloth bag 6 is taken out from top to bottom by hand, and a new dust removal cloth bag 6 is installed from bottom to top by hand between the upper partition plate 4 and the lower partition plate 5 to realize online replacement of the dust removal cloth bag 6.

[0036] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An environmentally friendly smelting tail gas treatment device, comprising a shell (1), an inlet pipe (2), and an outlet pipe (3); the shell (1) is connected to the inlet pipe (2) and the outlet pipe (3); characterized in that, It also includes an upper partition (4), a lower partition (5), a dust collector bag (6), a sealing unit, and a collection hopper (13); the upper partition (4) is fixedly connected inside the outer shell (1); the lower partition (5) is fixedly connected inside the outer shell (1), and the lower partition (5) is located below the upper partition (4); the upper partition (4) and the lower partition (5) each have several vertically aligned through holes, and a dust collector bag (6) is detachably connected between the vertically aligned through holes for filtering metal dust, and the dust collector bag (6) is set to be open at the top and bottom; the outer shell (1) is connected to several sealing units for sealing the upper and lower openings of the dust collector bag (6); the outer shell (1) is slidably connected to a collection hopper (13) for collecting metal dust, and the collection hopper (13) is located below the lower partition (5).

2. The environmentally friendly smelting tail gas treatment equipment according to claim 1, characterized in that, The sealing unit includes a drive motor (7), a rotating rod (8), an upper sliding rod (9), a cover plate (10), a lower sliding rod (11), and a base plate (12); the outer shell (1) is fixedly connected to the drive motor (7); the outer shell (1) is rotatably connected to the rotating rod (8), the output shaft of the drive motor (7) is fixedly connected to the corresponding rotating rod (8), and the rotating rod (8) is located at the center of the corresponding dust collector bag (6); each rotating rod (8) has a spiral part at its upper and lower ends; several upper sliding rods (9) are fixedly connected to the upper side of the upper partition plate (4); each spiral part at the upper end of each rotating rod (8) is rotatably connected to a cover plate (10), and the cover plate (10) is slidably connected to the corresponding upper sliding rod (9); several lower sliding rods (11) are fixedly connected to the lower side of the lower partition plate (5); each spiral part at the lower end of each rotating rod (8) is rotatably connected to a base plate (12), and the base plate (12) is slidably connected to the corresponding lower sliding rod (11).

3. The environmentally friendly smelting tail gas treatment equipment according to claim 1, characterized in that, It also includes a gas supply pipe (111), an annular pipe (112), a flexible hose (113), a connecting rod (114), an arc-shaped baffle (115), and a drive unit; the bottom of the lower partition (5) is fixedly connected to the gas supply pipe (111), and the gas supply pipe (111) passes through the outer shell (1) and connects to the external pump; each lower partition (5) has an annular pipe (112) fixedly connected to its through hole, and the annular pipe (112) is connected to the gas supply pipe (111), and the annular pipe (112) is equipped with an electrically controlled valve; each lower partition (5) has several connecting rods (114) arranged in a ring array rotatably connected around its through hole, and the upper end of the connecting rod (114) is connected to the upper partition (4). Rotary connection; each connecting rod (114) is fixedly connected to an arc-shaped baffle (115), which rotates through the connecting rod (114) to form a closed cylinder that surrounds the dust collector bag (6); the bottom of the lower partition (5) is connected to several driving units, which are connected to the connecting rod (114) and are used to drive the connecting rod (114) to rotate; the connecting rod (114) is set as a hollow structure; each annular tube (112) is connected to several hoses (113), and the hoses (113) are connected to the interior of the corresponding connecting rod (114); each connecting rod (114) has several air blowing ports (11401).

4. The environmentally friendly smelting tail gas treatment equipment according to claim 3, characterized in that, The drive unit includes an annular electric slider (121), a toothed ring (122) and a gear (123); the bottom of the lower partition (5) is slidably connected to the annular electric slider (121) via an annular slide rail; the annular electric slider (121) is fixedly connected to the toothed ring (122); each connecting rod (114) is fixedly connected to a gear (123), and the gear (123) meshes with the toothed ring (122).

5. An environmentally friendly smelting tail gas treatment device according to any one of claims 3-4, characterized in that, The air inlet (11401) is tilted downwards along its axial direction.

6. The environmentally friendly smelting tail gas treatment equipment according to claim 3, characterized in that, It also includes elastic sheets (116) and striking rods (117); each connecting rod (114) is fixed with several elastic sheets (116); each elastic sheet (116) is fixed with a striking rod (117).

7. The environmentally friendly smelting tail gas treatment equipment according to claim 2, characterized in that, It also includes a connecting plate (101), a support plate (102), a micro motor (103), and an extrusion plate (104); several connecting plates (101) arranged in a ring array are fixedly connected to the upper and lower sides of the rotating rod (8); each pair of corresponding upper and lower connecting plates (101) are rotatably connected to a support plate (102), and the support plate (102) is in contact with the inner wall of the dust collector bag (6); each connecting plate (101) located on the upper side is fixedly connected to a micro motor (103), and the output shaft of the micro motor (103) is fixedly connected to the support plate (102); each support plate (102) is fixedly connected to an extrusion plate (104).

8. The environmentally friendly smelting tail gas treatment equipment according to claim 7, characterized in that, The upper side of the base plate (12) is set as a cone-shaped surface with a high center and low sides.

9. The environmentally friendly smelting tail gas treatment equipment according to claim 3, characterized in that, It also includes a pressure detector (201); a pressure detector (201) is fixedly connected to the through hole of each lower partition (5), and the pressure detector (201) is located between the dust collector bag (6) and the connecting rod (114).

10. The environmentally friendly smelting tail gas treatment equipment according to claim 9, characterized in that, The upper end of the sliding rod (11) is provided with a threaded part (1101), and the sliding rod (11) is threadedly connected to the lower partition (5) through the threaded part (1101).

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