Multi-process treatment system for lead smelting smoke dust

Abstract

The invention discloses a multi-process treatment system for lead smelting smoke dust, and belongs to the field of lead smelting. The device comprises a winding cooling pipe arranged in a guide plate fixedly arranged in the bag type dust collector, the overall temperature of the cooling pipe is guaranteed through flowing of cooling liquid in the cooling pipe, then the overall temperature of the guide plate is guaranteed, temperature exchange with smoke introduced into the bag type dust collector is carried out through the guide plate, and the cooling effect is improved. Meanwhile, the surface of the bag type dust collector is provided with a circulating port, and the temperature of the smoke dust in contact with the filter bag is reduced through the water pumping port, the water pump, the water inlet pipe, the cooling pipe, the overflow pipe and the circulating port, so that the temperature of the smoke dust in contact with the filter bag is further reduced, and the influence of the smoke dust on the service life of the filter bag is reduced; cooling liquid can circulate in the bag type dust collector and the guide plate, after the cooling liquid flows into the bag type dust collector, the heat dissipation area is increased, rapid cooling can be achieved, and the cooling liquid enters the guide plate subsequently, so that the heat exchange effect can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of lead smelting, and in particular to a multi-process system for treating lead smelting smoke. Background Art

[0002] Lead smelting smoke mainly comes from smelting furnaces, sintering machines, fuming furnaces, reverberatory furnaces and other equipment. Generally, lead smelting smoke needs to pass through multiple equipment before being discharged. Among them, the flue gas treatment of lead smelting furnaces generally adopts the process of waste heat boiler cooling, bag dust collector (mechanical vibration + pulse cleaning), and environmentally friendly chimney emission.

[0003] Under normal circumstances, the smoke discharged from the waste heat boiler will not directly enter the bag dust collector. A smoke cooling structure such as spraying equipment will be added between the two to reduce the overall temperature of the smoke entering the bag dust collector, thereby preventing the high-temperature smoke from causing the overall temperature inside the bag dust collector to rise, thereby accelerating the aging of the filter bag material. However, adding cooling equipment will require additional space in the factory building, and the existing positions of the waste heat boiler and bag dust collector need to be changed. At the same time, operators are required to regularly maintain the cooling equipment, which increases maintenance costs.

[0004] In summary, in the prior art, the smoke treatment of waste heat boilers and bag filters increases the demand for plant space and increases operating and maintenance costs by adding spray cooling equipment to prevent smoke from affecting the service life of filter bags. Summary of the Invention

[0005] The present invention provides a multi-process system for treating lead smelting smoke, which can solve the problem in the prior art that the smoke treatment of waste heat boilers and bag dust collectors increases the demand for plant space and increases operating and maintenance costs when adding spray cooling equipment to prevent smoke from affecting the service life of filter bags.

[0006] A multi-process system for treating lead smelting smoke includes a bag dust collector for cleaning dust, wherein a cooling mechanism is provided inside the bag dust collector, and the cooling mechanism includes:

[0007] A guide plate is detachably arranged inside the bag filter, and a cooling pipe is fixedly connected to the inside of the guide plate;

[0008] An inclined block and a filter plate are fixedly arranged at an angle at the bottom of the bag dust collector. A circulation port and a water suction port covered by the filter plate are provided on the surface of the bag dust collector. Two flow ports for placing cooling pipes are provided on the guide plate and the top of the bag dust collector. An overflow pipe is fixedly connected between the circulation port and the flow port. A water inlet pipe is fixedly connected to the surface of the other flow port. A water pump is fixedly connected to the surface of the bag dust collector. The water pump input end is fixedly connected to the water suction port, and the water inlet pipe is fixedly connected to the water pump output end.

[0009] Optionally, a plurality of fixing grooves are provided on the surface of the guide plate, and a plurality of through grooves are provided on the surface of the bag dust collector. Fixing rods are threadedly connected to the inside of the through grooves, and the fixing rods are adapted to the fixing grooves.

[0010] Optionally, the guide plate includes a vertical plate, a transition plate and an inclined plate, one end of the vertical plate is fixedly connected to the transition plate, and the other end contacts the inner wall of the bag filter, and the other end of the transition plate is fixedly connected to the inclined plate.

[0011] Optionally, the extended line of the edge of the inclined plate intersects with the extended line of the edge of the bag dust removal belt to form an acute angle.

[0012] Optionally, a plurality of leakage grooves are provided on the surfaces of the inclined plate and the cooling pipe, and the plurality of leakage grooves are arranged at intervals.

[0013] Optionally, an arc block is fixedly connected to the surface of the inclined plate, an edge of the arc block coincides with an edge of the leakage groove, and an edge of the arc block away from the inclined plate is arc-shaped.

[0014] Optionally, a water inlet groove is provided on the surface of the bag dust collector, the edge of the water inlet groove coincides with the edge of the inclined block away from the bottom of the bag dust collector, and a drainage groove is provided on the bottom of the bag dust collector and the surface of the inclined block, and sealing columns are slidably arranged inside the water inlet groove and the drainage groove.

[0015] Optionally, a cleaning groove is provided on the surface of the bag filter, the cleaning groove, the water inlet groove and the drain groove are arranged perpendicular to each other, and the edge of the cleaning groove coincides with the edge of the filter plate; a sealing block is fixedly provided on the surface of the cleaning groove.

[0016] Optionally, the surface of the bag dust collector is rotatably connected to an extrusion rod and a limiting rod, the extrusion rod is fixedly connected to the sealing block, and a fixing component is provided between the limiting rod and the extrusion rod for limiting the position of the extrusion rod.

[0017] Optionally, a limiting groove is provided on the surface of the extrusion rod, the surface of the limiting rod is slidably connected to the limiting block, the surface of the limiting rod is threadedly connected to an operating ring, and the surface of the operating ring is in contact with the surface of the limiting block.

[0018] The present invention provides a multi-process treatment system for lead smelting smoke, comprising a guide plate fixedly arranged inside the bag filter and a winding cooling pipe arranged inside the guide plate, through which the cooling liquid flows inside the cooling pipe to ensure the overall temperature of the cooling pipe, and then the overall temperature of the guide plate is ensured, and the guide plate exchanges temperature with the smoke entering the bag filter, and then the temperature of the smoke in contact with the filter bag is lowered again, avoiding direct contact of high-temperature smoke with the filter bag, and reducing the impact of smoke on the service life of the filter bag, and at the same time, an inclined block and a filter plate are arranged obliquely inside the bag filter, and a water pump port can be covered by the filter plate, and a circulation port is arranged on the surface of the bag filter, and the cooling liquid can be circulated inside and outside the bag filter through the water pump port, water pump, water inlet pipe, cooling pipe, overflow pipe and circulation port. The cooling liquid circulates inside the guide plate and flows into the bag filter, where the heat dissipation area increases and can be cooled quickly. The subsequent entry into the guide plate can ensure the heat exchange effect. At the same time, the cooling liquid accumulates inside the bag filter. When the filter bag is cleaned, the scattered dust can enter the cooling liquid in a unified manner and be blocked by the filter plate, so that the dust accumulates while preventing the cooling pipe, water inlet pipe and overflow pipe from being blocked by dust. The cooling structure is directly loaded inside the bag filter to avoid increasing the space required for the equipment. A cleaning groove is opened at the bottom of the bag filter, and the edge of the cleaning groove coincides with the edge of the filter plate. The dust on the edge of the filter plate can be cleaned in a unified manner by the cleaning groove position, and a sealing block and a fixing component are provided to seal the cleaning groove position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a multi-process lead smelting dust treatment system provided by the present invention;

[0020] Figure 2 The present invention provides Figure 1 A magnified view of the local structure at point A;

[0021] Figure 3 A three-dimensional structural cross-sectional view of the filter plate provided by the present invention;

[0022] Figure 4 This is a three-dimensional exploded view of the cooling mechanism provided by the present invention;

[0023] Figure 5 The present invention provides Figure 4 A magnified view of the local structure at point B in the middle.

[0024] Description of reference numerals:

[0025] 1. Bag dust collector;

[0026] 21. Guide plate; 22. Cooling pipe; 23. Tilt block; 24. Filter plate; 25. Water inlet; 26. Circulation port; 27. Overflow pipe; 28. Water inlet pipe; 29. ​​Water pump;

[0027] 31. Fixing slot; 32. Through slot; 33. Fixing rod;

[0028] 41. Arc block; 42. Leakage trough;

[0029] 51. Water inlet trough; 52. Drain trough; 53. Sealing column; 54. Cleaning trough; 55. Sealing block;

[0030] 61. Extrusion rod; 62. Limit rod; 63. Limit groove; 64. Limit block; 65. Operating ring. DETAILED DESCRIPTION

[0031] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0032] like Figures 1 to 5 As shown, an embodiment of the present invention provides a multi-process system for treating lead smelting smoke, including a bag dust collector 1 for cleaning dust, wherein a plurality of filter bags are fixedly arranged inside the bag dust collector 1, and a cooling mechanism is provided inside the bag dust collector 1, wherein the cooling mechanism includes:

[0033] A guide plate 21 is detachably provided inside the bag filter 1, wherein the projection of the guide plate 21 toward the filter bag covers the filter bag, and a winding cooling pipe 22 is fixedly connected to the inside of the guide plate 21;

[0034] An inclined block 23 and a filter plate 24 are fixedly arranged at the bottom of the bag filter 1. The inclined block 23 is used to guide the flow of cooling liquid. The filter plate 24 is inclined inside the bag filter 1. A water pumping port 25 and a circulation port 26 are provided on the surface of the bag filter 1. The filter plate 24 covers the water pumping port 25. Two flow ports are provided on the guide plate 21 and the top of the bag filter 1. Both ends of the cooling pipe 22 are placed inside the flow port. An overflow pipe 27 is fixedly connected between the circulation port 26 and the single flow port. A water inlet pipe 28 is fixedly connected to the surface of the other flow port. A water pump 29 is fixedly connected to the surface of the bag filter 1. The input end of the water pump 29 is fixedly connected to the water pumping port 25, and the water inlet pipe 28 is fixedly connected to the output end of the water pump 29.

[0035] In summary, the embodiment of the present invention provides a multi-process treatment system for lead smelting smoke, including a guide plate 21 fixedly arranged inside the bag filter 1, a winding cooling pipe 22 is arranged inside the guide plate 21, and the cooling liquid flows inside the cooling pipe 22 to ensure the overall temperature of the cooling pipe 22, thereby ensuring the overall temperature of the guide plate 21, and the guide plate 21 exchanges temperature with the smoke entering the bag filter 1, thereby reducing the temperature of the smoke in contact with the filter bag again, avoiding direct contact of high-temperature smoke with the filter bag, and reducing the impact of smoke on the service life of the filter bag. At the same time, an inclined block 23 and a filter plate 24 are inclinedly arranged inside the bag filter 1, and the water suction port 25 can be covered by the filter plate 24. At the same time, a circulation port 26 is provided on the surface of the bag filter 1 , through the water suction port 25, water pump 29, water inlet pipe 28, cooling pipe 22, overflow pipe 27 and circulation port 26, the cooling liquid can be circulated inside the bag filter 1 and the guide plate 21. After the cooling liquid flows into the bag filter 1, the heat dissipation area is increased, and it can be cooled quickly. The subsequent entry into the guide plate 21 can ensure the heat exchange effect. At the same time, the cooling liquid accumulates inside the bag filter 1. When the filter bag is cleaned, the scattered dust can enter the cooling liquid in a unified manner and be blocked by the filter plate 24, so that the dust can be accumulated while avoiding the cooling pipe 22, the water inlet pipe 28 and the overflow pipe 27 being blocked by dust. Moreover, the cooling structure is directly loaded inside the bag filter 1, which can avoid increasing the space required for the equipment.

[0036] In some specific embodiments, the guide plate 21 is provided with a plurality of fixing grooves 31 on its surface, and the bag filter 1 is provided with a plurality of through grooves 32 on its surface. The through grooves 32 are internally threaded with fixing rods 33, and the fixing rods 33 are adapted to the fixing grooves 31.

[0037] In some specific embodiments, the guide plate 21 includes a vertical plate, a transition plate, and an inclined plate. One end of the vertical plate is fixedly connected to the transition plate, and the other end contacts the inner wall of the bag filter 1. The other end of the transition plate is fixedly connected to the inclined plate. The extended line of the edge of the inclined plate intersects with the extended line of the edge of the bag filter belt to form an acute angle. The inclined plate is arranged near the bottom of the bag filter 1. The area between the inclined plate and the inner wall of the bag filter 1 can be increased to facilitate the diffusion of smoke and dust and contact with the guide plate 21, thereby accelerating the temperature drop rate of the overall smoke.

[0038] In a further embodiment, a plurality of liquid leakage grooves 42 are provided on the surfaces of the inclined plate and the cooling tube 22, and the plurality of liquid leakage grooves 42 are arranged at intervals; a flowing water flow is formed between the inclined plate and the bag filter 1 through the liquid leakage grooves 42, and the smoke dust passes through the water flow and is then discharged to an area where it can contact the filter bag, thereby further reducing the overall temperature of the smoke dust;

[0039] In a further embodiment, a curved block 41 is fixedly connected to the surface of the inclined plate, and the edge of the curved block 41 coincides with the edge of the leakage groove 42. The edge of the curved block 41 away from the inclined plate is curved. The curved curved block 41 can prevent the leakage groove 42 from directly contacting the smoke and dust, preventing the smoke and dust from solidifying and adhering to the edge of the leakage groove 42 after contacting the cooling liquid, thereby ensuring that the cooling liquid at the leakage groove 42 can flow smoothly.

[0040] In some specific embodiments, a water inlet groove 51 is provided on the surface of the bag filter 1, and the edge of the water inlet groove 51 coincides with the edge of the inclined block 23 away from the bottom of the bag filter 1. A water discharge groove 52 is provided on the bottom of the bag filter 1 and the surface of the inclined block 23. A sealing column 53 is slidably provided inside the water inlet groove 51 and the water discharge groove 52.

[0041] In some specific embodiments, a cleaning groove 54 is provided on the surface of the bag filter 1, and the cleaning groove 54, the water inlet groove 51 and the drain groove 52 are arranged perpendicular to each other, and the edge of the cleaning groove 54 coincides with the edge of the filter plate 24; a sealing block 55 is fixedly provided on the surface of the cleaning groove 54; a cleaning groove 54 is provided that coincides with the edge of the filter plate 24, and the smoke and dust accumulated on the surface of the filter plate 24 can be cleaned and discharged from the position of the cleaning groove 54. After a certain amount of smoke and dust accumulates in the filter bag on the surface of the bag filter 1, the built-in pulse device will shake off the dust on the surface of the filter bag, and the dust will fall and be concentrated in the cooling liquid, and under the action of the water pump 29, it will accumulate on the edge of the filter plate 24; after the bag filter 1 has been used for a period of time, the internal cooling liquid can be replaced, and the sealing block 55 can be opened to discharge the smoke and dust on the surface of the filter plate 24 in a unified manner;

[0042] In a further embodiment, the surface of the bag filter 1 is rotatably connected to an extrusion rod 61 and a limiting rod 62, the extrusion rod 61 is fixedly connected to the sealing block 55, and a fixing assembly is provided between the limiting rod 62 and the extrusion rod 61 for limiting the position of the extrusion rod 61; the position of the extrusion rod 61 is limited by the fixing assembly, thereby limiting the position of the sealing block 55, ensuring that the sealing block 55 is tightly fitted with the cleaning groove 54, and maintaining the sealing of the cleaning groove 54;

[0043] The surface of the extrusion rod 61 is provided with a limiting groove 63, the surface of the limiting rod 62 is slidably connected to the limiting block 64, and the surface of the limiting rod 62 is threadedly connected to the operating ring 65, and the surface of the operating ring 65 is in contact with the surface of the limiting block 64; after the extrusion rod 61 is rotated until the sealing block 55 contacts the cleaning groove 54, the limiting rod 62 can be inserted into the position between the limiting grooves 63, and the limiting block 64 is slid into the interior of the limiting rod 62 and contacts the extrusion rod 61, and then the operating ring 65 is rotated to limit the position of the limiting block 64, thereby further limiting the position of the extrusion rod 61;

[0044] Working principle of the present invention:

[0045] Before using the bag filter 1, first introduce cooling liquid from the water inlet trough 51, and start the water pump 29 to force the cooling liquid to flow into the cooling pipe 22, and part of the cooling liquid flows out from the leakage trough 42. After the cooling pipe 22 is filled, the cooling liquid flows to the surface of the inclined block 23 through the overflow pipe 27, closing the water inlet trough 51; the smoke dust discharged from the waste heat boiler is introduced, and the smoke dust first contacts the vertical plate and slides along the transition plate to the surface of the inclined plate. The temperature is exchanged through the cooling liquid, and after sliding to the surface of the arc block 41, it contacts the inner wall of the bag filter 1, and then contacts the cooling liquid dripping from the leakage trough 42, and enters the filter bag area. The smoke dust moves upward and is discharged from the top of the bag filter 1.

[0046] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A multi-process system for treating lead smelting dust, characterized in that: The invention comprises a bag dust collector (1) for cleaning dust, wherein a cooling mechanism is provided inside the bag dust collector (1), and the cooling mechanism comprises: A guide plate (21) is detachably arranged inside the bag filter (1), wherein a cooling pipe (22) is fixedly connected to the inside of the guide plate (21); An inclined block (23) and a filter plate (24) are fixedly arranged at the bottom of the bag dust collector (1). A circulation port (26) and a water extraction port (25) covered by the filter plate (24) are provided on the surface of the bag dust collector (1). Two flow ports for placing cooling pipes (22) are provided on the guide plate (21) and the top of the bag dust collector (1). An overflow pipe (27) is fixedly connected between the circulation port (26) and the flow port. A water inlet pipe (28) is fixedly connected to the surface of the other flow port. A water pump (29) is fixedly connected to the surface of the bag dust collector (1). The input end of the water pump (29) is fixedly connected to the water extraction port (25), and the water inlet pipe (28) is fixedly connected to the output end of the water pump (29).

2. A multi-process lead smelting dust treatment system according to claim 1, characterized in that: The guide plate (21) is provided with a plurality of fixing grooves (31) on its surface, and the bag dust collector (1) is provided with a plurality of through grooves (32) on its surface. The through grooves (32) are internally threadedly connected with fixing rods (33), and the fixing rods (33) are adapted to the fixing grooves (31).

3. The multi-process lead smelting dust treatment system according to claim 1, characterized in that: The guide plate (21) comprises a vertical plate, a transition plate and an inclined plate, one end of the vertical plate is fixedly connected to the transition plate, and the other end contacts the inner wall of the bag filter (1), and the other end of the transition plate is fixedly connected to the inclined plate.

4. A multi-process lead smelting smoke treatment system as claimed in claim 3, characterized in that: The extended line of the edge of the inclined plate intersects with the extended line of the edge of the bag dust removal belt to form an acute angle.

5. A multi-process system for treating lead smelting dust according to claim 3, characterized in that: The surfaces of the inclined plate and the cooling pipe (22) are both provided with a plurality of liquid leakage grooves (42), and the plurality of liquid leakage grooves (42) are arranged at intervals.

6. A multi-process lead smelting dust treatment system as claimed in claim 5, characterized in that: An arc-shaped block (41) is fixedly connected to the surface of the inclined plate, the edge of the arc-shaped block (41) coincides with the edge of the leakage groove (42), and the edge of the arc-shaped block (41) away from the inclined plate is arc-shaped.

7. The multi-process lead smelting dust treatment system according to claim 1, characterized in that: A water inlet groove (51) is provided on the surface of the bag dust collector (1), and the edge of the water inlet groove (51) coincides with the edge of the inclined block (23) away from the bottom of the bag dust collector (1). A water discharge groove (52) is provided on the bottom of the bag dust collector (1) and the surface of the inclined block (23). Sealing columns (53) are slidably provided inside the water inlet groove (51) and the water discharge groove (52).

8. A multi-process system for treating lead smelting dust according to claim 7, characterized in that: A cleaning groove (54) is provided on the surface of the bag filter (1); the cleaning groove (54), the water inlet groove (51) and the water discharge groove (52) are arranged perpendicular to each other; the edge of the cleaning groove (54) coincides with the edge of the filter plate (24); and a sealing block (55) is fixedly provided on the surface of the cleaning groove (54).

9. A multi-process lead smelting smoke treatment system according to claim 8, characterized in that: The surface of the bag dust collector (1) is rotatably connected to an extrusion rod (61) and a limiting rod (62); the extrusion rod (61) is fixedly connected to the sealing block (55); and a fixing assembly is provided between the limiting rod (62) and the extrusion rod (61) for limiting the position of the extrusion rod (61).

10. A multi-process lead smelting dust treatment system according to claim 9, characterized in that: A limiting groove (63) is provided on the surface of the extrusion rod (61), a limiting block (64) is slidably connected to the surface of the limiting rod (62), an operating ring (65) is threadedly connected to the surface of the limiting rod (62), and a surface of the operating ring (65) contacts a surface of the limiting block (64).

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