Bag-type dust collector for secondary lead process

Abstract

The invention relates to the technical field of bag-type dust collectors, and discloses a bag-type dust collector for a lead regeneration process, which comprises a dust collection bag, an upper support ring, a lower support ring, a collection hopper and an ash shaking mechanism, the upper supporting ring and the lower supporting ring are fixedly arranged at the two ends of the dust collecting bag respectively; the upper supporting ring is fixedly communicated with a flexible connecting port, and the lower supporting ring is fixedly communicated with the collecting hopper; and the dust shaking mechanism is arranged at the side part of the dust removal cloth bag. According to the bag-type dust collector for the lead regeneration process, the dust shaking mechanism synchronously drives the upper supporting ring and the lower supporting ring at the two ends of the dust collecting bag to do opposite and back-to-back reciprocating motion, so that dust cleaning force can be uniformly transmitted to the whole length of the filter bag, and particularly, the dust cleaning effect of the middle lower part is improved; and the technical problems of non-uniform ash removal force transmission and easy hardening of the middle lower part of the filter bag caused by traditional single top driving are thoroughly solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cloth bag dust collector, in particular to a cloth bag dust collector for lead recycling process. BACKGROUND

[0002] In the lead recycling smelting process, cloth bag dust collectors are widely used to treat lead-containing dust to ensure the cleanliness and safety of the production environment.

[0003] An existing cloth bag dust collector for lead recycling process, as shown in patent CN209405874U, mainly realizes cleaning of dust accumulated on the surface of the dust removal cloth bag through mechanical shaking. The device adopts a half gear and a gear rod meshing mechanism driven by a double-shaft motor to convert rotary motion into up-down reciprocating motion of the gear rod, and then drives the dust removal cloth bag up and down through the movable plate to make the lead dust attached to the surface of the cloth bag fall off and collect in the dust collecting hopper, thereby solving the problems of reduced dust removal efficiency and increased system resistance caused by dust accumulation.

[0004] When the device is working, the double-shaft motor drives the half gear to rotate. When the half gear meshes with the gear rod, the gear rod moves up, compresses the spring and lifts the movable plate and the dust removal cloth bag. When the half gear and the gear rod are separated, the spring releases, driving the movable plate and the dust removal cloth bag to move down, thereby realizing dust cleaning through continuous up-down shaking.

[0005] However, the existing technology device has obvious deficiencies: the dust cleaning mechanism only drives the dust removal cloth bag to shake up and down as a whole through a single driving point at the top, and it is difficult for the dust cleaning force to be uniformly transmitted to the middle and lower parts of the long filter bag. This leads to the fact that fine lead dust with strong adhesion cannot be effectively removed, and a "hardened layer" is easily formed in the middle and lower parts of the filter bag, resulting in a decrease in filtration efficiency and a significant reduction in dust cleaning effect in the middle and lower parts of the filter bag.

[0006] Therefore, we propose a cloth bag dust collector for lead recycling process to solve the problems in the above background. SUMMARY

[0007] The present application provides a cloth bag dust collector for lead recycling process, which can solve the problem that the dust cleaning mechanism in the prior art only drives the dust removal cloth bag to shake up and down as a whole through a single driving point at the top, and the dust cleaning force is difficult to be uniformly transmitted to the middle and lower parts of the cloth bag, resulting in dust accumulation in the middle and lower parts of the cloth bag and a decrease in filtration efficiency of the cloth bag.

[0008] In order to solve the above technical problems, the present application provides the following technical scheme: A cloth bag dust collector for lead recycling process, comprising a dust removal cloth bag, further comprising an upper support ring, a lower support ring, a material collecting hopper and a dust shaking mechanism. The upper support ring and the lower support ring are fixedly arranged at two ends of the dust removal cloth bag respectively; the upper support ring is fixedly connected with a flexible connecting port; the lower support ring is fixedly connected with the collecting hopper; the dust shaking mechanism is arranged at the side of the dust removal cloth bag and is drivingly connected with the upper support ring and the lower support ring respectively, so as to drive the upper support ring and the lower support ring to perform synchronous reciprocating movement towards or away from each other.

[0009] Preferably, the upper support ring and the lower support ring are symmetrically provided with an ear plate on both sides; the dust shaking mechanism comprises two groups of driving units, and the two groups of driving units are arranged corresponding to the ear plates on both sides and drive the upper and lower ear plates on the same side to move synchronously.

[0010] Preferably, the dust shaking mechanism further comprises an outer frame and a guide slide plate, and the guide slide plate is fixedly connected to the outer frame; each group of driving units comprises a transverse driving assembly and a longitudinal driving assembly; the transverse driving assembly is mounted on the guide slide plate; the longitudinal driving assembly is connected with the output end of the transverse driving assembly and is driven by the transverse driving assembly to move horizontally, and the output end of the longitudinal driving assembly is connected with the upper and lower ear plates on the same side.

[0011] Preferably, the transverse driving assembly comprises an electric push rod, the cylinder body of the electric push rod is fixed to the guide slide plate, and the telescopic end is fixedly connected with the longitudinal driving assembly.

[0012] Preferably, the longitudinal driving assembly comprises a linear guide rail, a stepping motor and a bidirectional driving screw rod; the linear guide rail is fixedly connected with the output end of the transverse driving assembly; the stepping motor is fixedly mounted at one end of the linear guide rail; the bidirectional driving screw rod is rotationally connected inside the linear guide rail and is driven by the stepping motor; the two threads of the bidirectional driving screw rod are opposite in rotation direction, and each is sleeved with a driving block.

[0013] Preferably, the driving block is fixedly connected with a toothed plate on the side close to the ear plate, and the ear plate is provided with a tooth groove engaged with the toothed plate.

[0014] Preferably, it further comprises a guide slide rod fixed to the outer frame, and the upper and lower ear plates on the same side are slidably sleeved on the guide slide rod.

[0015] Preferably, a reset spring is sleeved on the guide slide rod between the upper and lower ear plates.

[0016] Preferably, a first electrically operated on-off valve is mounted at the bottom of the collecting hopper, a dust storage hopper is connected below the collecting hopper through a flexible rubber belt, and a second electrically operated on-off valve is mounted at the bottom of the dust storage hopper.

[0017] Compared with the prior art, the present application has the following advantages: Firstly, the present application synchronously drives the upper support ring and the lower support ring at both ends of the dust removal cloth bag to make reciprocating motion in opposite directions and in opposite directions, so that the dust removal force can be uniformly transmitted to the full length of the filter bag, especially the dust removal effect of the middle and lower parts is improved, and the technical problems of uneven transmission of dust removal force and easy hardening of the middle and lower parts of the filter bag caused by traditional single top driving are completely solved.

[0018] The "tightening-relaxing" cycle shaking mode is adopted, combined with reliable meshing transmission of the tooth plate and the tooth groove, and the quick return mechanism provided by the reset spring, a strong shaking wave is formed, which can effectively shake off fine lead dust with strong adhesion, and greatly improves the dust removal efficiency and thoroughness.

[0019] Secondly, the symmetrical ear plate structure and the two groups of driving units ensure balanced force, the guide slide rod provides accurate guidance for the ear plate movement, effectively prevents deflection and shaking, ensures the stability of the dust removal process and the service life of the mechanism, the controller and the electrically operated valve work together to realize automatic control of the dust removal process, and ensure that each valve is accurately opened and closed in different stages of filtration and dust removal; the connection of the flexible rubber belt ensures sealing and allows displacement, forming a high-efficiency and reliable closed dust collection system to prevent secondary pollution. While solving the problem of uneven dust removal, the device effectively reduces the system operating resistance, maintains stable filtration efficiency, prolongs the service life of the dust removal cloth bag, and provides more efficient and reliable flue gas purification protection for the lead regeneration process. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall external structure of the present application; Figure 2 is a schematic diagram of the overall expansion structure of the present application; Figure 3 is a schematic diagram of the side cross-sectional structure of the present application; Figure 4 is a schematic diagram of the Figure 3 is a schematic diagram of the enlarged structure at A of the present application.

[0021] Wherein: 1, dust removal cloth bag; 2, support ring; 3, ear plate; 4, outer frame; 5, guide slide plate; 6, linear guide rail; 7, electric push rod; 8, bidirectional drive screw; 9, stepping motor; 10, driving block; 11, tooth plate; 12, guide slide rod; 13, reset spring; 21, material collecting hopper; 22, first electrically operated valve; 23, dust storage hopper; 24, first electrically operated valve. DETAILED DESCRIPTION

[0022] The specific embodiments of the present application will be described in detail below, but it should be understood that the protection scope of the present application is not limited by the specific embodiments.

[0023] Embodiment one: Please refer to Figures 1-4 The present application provides a technical solution: A cloth bag dust collector for a lead regeneration process, comprising a dust removal cloth bag, further comprising an upper support ring, a lower support ring, a collection hopper and a dust shaking mechanism; The upper support ring and the lower support ring are respectively fixedly arranged at the two ends of the dust removal cloth bag; the upper support ring is fixedly connected with a flexible connecting port, and the lower support ring is fixedly connected with the collection hopper; the dust shaking mechanism is arranged on the side of the dust removal cloth bag and is drivingly connected with the upper support ring and the lower support ring respectively, for driving the upper support ring and the lower support ring to perform synchronous reciprocating motion towards or away from each other.

[0024] In the above scheme, the upper support ring and the lower support ring at the two ends of the dust removal cloth bag are simultaneously driven by the dust shaking mechanism, so that they perform synchronous reciprocating motion towards or away from each other. This action causes the dust removal cloth bag to stretch and relax longitudinally, forming effective shaking. This shaking effect can be transmitted to the entire length of the cloth bag, especially improving the dust removal effect of the middle and lower parts, and effectively shaking off the accumulated lead dust. Through the above "tightening-relaxing" cycle, effective shaking of the entire dust removal cloth bag, especially the middle and lower parts, is realized, so that the lead dust adhering to the surface of the cloth bag is completely shaken off into the collection hopper, thereby solving the problem of poor dust removal caused by single top driving, leading to the compaction of the middle and lower parts of the cloth bag and the decrease of filtration efficiency.

[0025] Further, symmetrical ear plates are arranged on the two sides of the upper support ring and the lower support ring; the dust shaking mechanism comprises two groups of driving units, and the two groups of driving units are respectively arranged corresponding to the ear plates on the two sides and drive the upper and lower ear plates on the same side to move synchronously.

[0026] In the above scheme, the ear plates are symmetrically arranged on the two sides of the support ring, and the upper and lower ear plates on the same side are driven by the two groups of driving units respectively, so that balanced driving of the two sides of the dust removal cloth bag is realized. Through symmetrical layout, it is ensured that the dust removal cloth bag is evenly stressed during shaking, avoiding the deflection or distortion caused by unilateral stress, so as to ensure the stability and effectiveness of the dust removal action.

[0027] Further, the dust shaking mechanism further comprises an outer frame and a guide slide plate, the guide slide plate is fixedly connected to the outer frame; each group of driving units comprises a transverse driving assembly and a longitudinal driving assembly; the transverse driving assembly is installed on the guide slide plate; The longitudinal driving assembly is connected with the output end of the transverse driving assembly and is driven by the transverse driving assembly to move horizontally, and the output end of the longitudinal driving assembly is connected with the upper and lower ear plates on the same side.

[0028] In the above scheme, the stable installation of the driving unit is facilitated by setting the outer frame and the guide slide plate. The horizontal movement of the longitudinal driving assembly is driven by the transverse driving assembly, so that the ear plate position can be accurately aligned. The longitudinal driving assembly directly drives the ear plate to complete the up-down movement.

[0029] Further, the transverse driving assembly comprises an electric push rod, the cylinder body of the electric push rod is fixed to the guide slide plate, and the telescopic end is fixedly connected with the longitudinal driving assembly.

[0030] In the above scheme, the horizontal movement of the longitudinal driving assembly is driven by the precise telescopic movement of the electric push rod. This design realizes the accurate positioning of the driving unit in the horizontal direction, ensures that the longitudinal driving assembly can accurately align the ear plate, and provides accurate position guarantee for the subsequent meshing and driving action.

[0031] Embodiment two: Please refer to Figures 1-4 , and further obtain, the longitudinal driving assembly comprises a linear guide rail, a stepping motor and a bidirectional driving screw rod; the linear guide rail is fixedly connected with the output end of the transverse driving assembly; the stepping motor is fixedly installed at one end of the linear guide rail; the bidirectional driving screw rod is rotationally connected inside the linear guide rail and is driven by the stepping motor; the two threads of the bidirectional driving screw rod are opposite in rotation direction, and each is provided with a driving block.

[0032] In the above scheme, the stepping motor drives the bidirectional driving screw rod to rotate, and the two driving blocks are synchronously moved along the linear guide rail in opposite directions or away from each other by using the threads with opposite rotation directions, thereby realizing accurate synchronous control of the upper and lower ear plates and ensuring that the two ends of the dust removal cloth bag can be pulled at the same time to form effective longitudinal stretching and relaxation action.

[0033] Further, the side of the driving block close to the ear plate is fixedly connected with a toothed plate, and the ear plate is provided with a tooth groove engaged with the toothed plate.

[0034] In the above scheme, the reliable connection between the driving block and the ear plate is realized by the engagement design of the toothed plate and the tooth groove on the ear plate. When the driving block moves, the toothed plate effectively transmits the driving force to the ear plate through the tooth groove, driving the support ring to move. This engagement structure ensures the accuracy and reliability of transmission and avoids the phenomenon of slipping.

[0035] Further, it further comprises a guide slide rod fixed to the outer frame, and the upper and lower ear plates on the same side are slidably sleeved on the guide slide rod.

[0036] In the above scheme, the guide slide rod provides accurate guiding for the up-down movement of the ear plates, ensures that the ear plates maintain a stable trajectory during movement, effectively prevents the ear plates from deviating or shaking during movement, and guarantees the accuracy and stability of the dust shaking action.

[0037] Further, a reset spring is sleeved on the guide slide rod between the two ear plates.

[0038] In the above scheme, the reset spring stores energy when the ear plates are driven to approach, and pushes the ear plates to reset quickly after the driving is released by releasing the elastic force. This structure realizes automatic return of the dust removal cloth bag, ensures that each dust shaking action can complete a complete tightening and relaxation cycle, and improves the dust removal effect and the working efficiency of the system.

[0039] Further, the bottom of the collecting hopper is provided with a first electrically operated on-off valve, and the collecting hopper is communicated with a dust storage hopper through a flexible rubber belt, and the bottom of the dust storage hopper is provided with a second electrically operated on-off valve.

[0040] In the above scheme, the use of the two electrically operated on-off valves realizes segmented control of the dust collection system. The first electrically operated on-off valve controls the opening and closing of the collecting hopper, and the second electrically operated on-off valve controls the discharge of the dust storage hopper. The connection of the flexible rubber belt ensures the sealing property and allows a certain displacement, ensuring that the dust collection system can work normally during the dust shaking process.

[0041] The cloth bag dust collector for the secondary lead process also comprises a controller; The controller is electrically connected with the dust shaking mechanism, the first electrically operated on-off valve and the second electrically operated on-off valve, and is configured to: When the dust removal cloth bag is filtering, the first electrically operated on-off valve is opened and the second electrically operated on-off valve is closed; When the dust removal program is triggered, the following steps are executed in sequence: a. The first electrically operated on-off valve is closed to isolate the dust storage hopper; b. The dust shaking mechanism is controlled to operate for a preset time, and the accumulated lead dust is shaken off into the collecting hopper; c. The first electrically operated on-off valve is opened for a preset time, and the lead dust in the collecting hopper is discharged into the dust storage hopper; d. The first electrically operated on-off valve is closed, and the second electrically operated on-off valve is opened to empty the lead dust in the dust storage hopper.

[0042] The working principle of the bag filter for the secondary lead process is as follows: when dust cleaning is needed, the controller first closes the first electrically operated on-off valve to isolate the dust storage hopper, and then starts the dust shaking mechanism; the electric push rod pushes the linear guide rail to move horizontally, so that the toothed plate is engaged with the toothed groove on the ear plate; then the step motor drives the bidirectional drive screw to rotate, which drives the two drive blocks and the toothed plate to move synchronously and oppositely, thereby pulling the upper and lower ear plates on the same side to move close to each other along the guide slide rod against the elastic force of the return spring, so that the dust removal bag is longitudinally stretched tightly; then the electric push rod is retracted to separate the toothed plate from the ear plate, and the ear plate is quickly reset under the action of the return spring, thereby driving the dust removal bag to relax and shake; through the cycle of "stretching-tightening and relaxing", the dust on the whole bag is effectively cleaned; after the dust cleaning is completed, the controller controls the first electrically operated on-off valve to open, so that the lead dust shaken in the collection hopper is discharged into the dust storage hopper, and finally the second electrically operated on-off valve is opened to completely discharge the lead dust.

[0043] The above disclosed are only several specific embodiments of the present application, but the embodiments of the present application are not limited to this, and any changes that can be thought of by those skilled in the art shall fall within the protection scope of the present application.

Claims

1. A bag filter for a secondary lead process comprising a filter bag (1), characterized in that: It also includes an upper support ring (2), a lower support ring (2), a collecting hopper (21) and a dust shaking mechanism; the upper support ring (2) and the lower support ring (2) are respectively fixedly arranged at two ends of the dust removal cloth bag (1); the upper support ring (2) is fixedly communicated with a flexible connecting port, the lower support ring (2) is fixedly communicated with the collecting hopper (21); the dust shaking mechanism is arranged on the side of the dust removal cloth bag (1) and is respectively drivingly connected with the upper support ring (2) and the lower support ring (2), for driving the upper support ring (2) and the lower support ring (2) to synchronously reciprocate towards or away from each other.

2. A baghouse for use in a secondary lead process according to claim 1, characterised in that: The upper support ring (2) and the lower support ring (2) are symmetrically provided with an ear plate (3) on both sides; the dust shaking mechanism comprises two groups of driving units, and the two groups of driving units are respectively arranged corresponding to the ear plates (3) on both sides and drive the upper and lower ear plates (3) on the same side to synchronously move.

3. A baghouse for use in a secondary lead process according to claim 2, characterised in that: The dust shaking mechanism further comprises an outer frame (4) and a guide sliding plate (5), and the guide sliding plate (5) is fixedly connected to the outer frame (4); each group of driving units comprises a transverse driving assembly and a longitudinal driving assembly; the transverse driving assembly is mounted on the guide sliding plate (5); the longitudinal driving assembly is connected with the output end of the transverse driving assembly and is driven by the transverse driving assembly to horizontally move, and the output end of the longitudinal driving assembly is connected with the upper and lower ear plates (3) on the same side.

4. A baghouse for use in a secondary lead process according to claim 3, characterised in that: The transverse driving assembly comprises an electric push rod (7), and the cylinder body of the electric push rod (7) is fixed to the guide sliding plate (5), and the telescopic end is fixedly connected with the longitudinal driving assembly.

5. A baghouse for use in a secondary lead process according to claim 3, characterised in that: The longitudinal driving assembly comprises a linear guide rail (6), a stepping motor (9) and a bidirectional driving screw (8); the linear guide rail (6) is fixedly connected with the output end of the transverse driving assembly; the stepping motor (9) is fixedly mounted on one end of the linear guide rail (6); the bidirectional driving screw (8) is rotatably connected in the linear guide rail (6) and is driven by the stepping motor (9); the two threads of the bidirectional driving screw (8) are opposite in rotation direction, and each is sleeved with a driving block (10).

6. A baghouse for use in a secondary lead process according to claim 5, characterised in that: The driving block (10) is fixedly connected with a toothed plate (11) on the side close to the ear plate (3), and the ear plate (3) is provided with a toothed groove engaged with the toothed plate (11).

7. A baghouse for use in a secondary lead process according to claim 2, characterized in that: It also comprises a guide sliding rod (12) fixed to the outer frame (4), and the upper and lower ear plates (3) on the same side are slidably sleeved on the guide sliding rod (12).

8. A baghouse for use in a secondary lead process according to claim 7, characterised in that: A reset spring (13) is sleeved on the guide sliding rod (12) between the upper and lower ear plates (3).

9. A baghouse for use in a secondary lead process according to claim 1, characterized in that: The bottom of the collecting hopper (21) is provided with a first electrically operated on-off valve (22), and a dust storage hopper (23) is communicated below the collecting hopper (21) through a flexible rubber belt, and the bottom of the dust storage hopper (23) is provided with a second electrically operated on-off valve (24).

10. A baghouse for use in a secondary lead process according to claim 1, characterized in that: It also comprises a controller; The controller is electrically connected with the dust shaking mechanism, the first electrically operated on-off valve (22) and the second electrically operated on-off valve (24), and is configured to: When the dust bag (1) is filtering, the first electric on-off valve (22) is opened and the second electric on-off valve (24) is closed; When the dust cleaning program is triggered, the following steps are executed in sequence: a. The first electric on-off valve (22) is closed to isolate the dust storage hopper (23); b. The dust shaking mechanism is operated for a preset time to shake off the accumulated lead dust into the collection hopper (21); c. The first electric on-off valve (22) is opened for a preset time to discharge the lead dust in the collection hopper (21) to the dust storage hopper (23); d. The first electric on-off valve (22) is closed and the second electric on-off valve (24) is opened to empty the lead dust in the dust storage hopper (23).

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