Dedusting device special for brick kiln

Abstract

The utility model relates to the technical field of brick kiln dust removal, in particular to a special dust removal device for a brick kiln. The special dust removal device for the brick kiln comprises a chimney and a smoke pipe, the bottom plate is installed at the bottom of the chimney and seals the bottom of the chimney, a smoke guide cover is installed at the top end of the bottom plate, a filter screen is fixedly installed at the top end of the smoke guide cover, and the middle of the smoke guide cover is aligned to a smoke outlet of the smoke pipe; the supporting ring is installed in the chimney and located above the filter screen, a waterproof double-shaft motor is installed in the middle of the supporting ring, the upper end of the waterproof double-shaft motor is in transmission connection with a long shaft, fan blades are fixedly installed at the top end of the long shaft, the bottom end of the waterproof double-shaft motor is in transmission connection with a short shaft, and spiral blades are fixedly installed on the short shaft; a plurality of partition plates are installed on the supporting ring, a plurality of smoke exhaust holes are formed in the partition plates, and spraying mechanisms are installed in the smoke exhaust holes. Particles in flue gas in the chimney make full use of atomized water vapor for contact, and therefore the dust removal effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology for brick kilns, and in particular to a dust removal device specifically designed for brick kilns. Background Technology

[0002] A brick kiln consists of multiple kiln chambers for firing bricks and a huge chimney for emitting smoke. During the operation of the brick kiln, a large amount of smoke and dust is generated and discharged from the chimney.

[0003] Currently, the dust removal devices used in brick kilns do not completely purify flue gas during operation, resulting in poor dust removal efficiency. Many harmful gases and dust are emitted into the atmosphere through chimneys, causing serious environmental pollution.

[0004] Therefore, it is necessary to provide a new dust removal device specifically for brick kilns to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a dust removal device specifically for brick kilns.

[0006] The dust removal device for brick kilns provided by this utility model includes: a chimney, and a flue pipe installed on one side of the bottom end of the chimney;

[0007] A base plate is installed at the bottom of the chimney and seals the bottom of the chimney. A smoke guide hood is installed at the top of the base plate. A filter screen is fixedly installed at the top of the smoke guide hood, and the middle part of the smoke guide hood is aligned with the smoke outlet of the flue.

[0008] A support ring is installed inside the chimney and above the filter screen. A waterproof dual-shaft motor is installed in the middle of the support ring. The upper end of the waterproof dual-shaft motor is driven by a long shaft, and a fan blade is fixedly installed at the top of the long shaft. The lower end of the waterproof dual-shaft motor is driven by a short shaft, and a spiral blade is fixedly installed on the short shaft. Several partition plates are installed on the support ring, and several exhaust holes are opened on the partition plates. A spray mechanism is installed in the exhaust holes. The spray mechanism includes spray components disposed in the exhaust holes. The spray components are connected to a liquid inlet ring pipe, which is fixedly installed on the support ring. A liquid guide pipe is connected to the liquid inlet ring pipe, and one end of the liquid guide pipe passes through the chimney and is connected to a preheating component.

[0009] Preferably, the spray assembly includes a spray ring, which is embedded in the exhaust hole, and a plurality of atomizing nozzles are evenly installed on the inner sidewall of the spray ring. The spray ring is connected to the liquid inlet ring pipe through a conduit.

[0010] Preferably, the preheating component includes a spiral heat exchange tube, which is fixedly sleeved on the outer wall of the flue, and one end of the spiral heat exchange tube is connected to the liquid guide tube through a conduit, and the other end of the spiral heat exchange tube is connected to the liquid inlet pipe. A ceramic heat storage column is fixedly installed on the spiral heat exchange tube, and an insulation layer is fixedly sleeved on the ceramic heat storage column.

[0011] Preferably, the bottom end of the base plate is connected to a drain pipe, and the end of the drain pipe facing away from the base plate passes through the chimney and is exposed to the outside.

[0012] Preferably, a plurality of air guide holes are evenly formed on the spiral blade.

[0013] Preferably, the bottom of the smoke hood is provided with several water guide grooves.

[0014] Preferably, an observation window is provided on one side of the chimney.

[0015] Compared with related technologies, the dust removal device for brick kilns provided by this utility model has the following beneficial effects:

[0016] 1. This utility model provides a dust removal device for brick kilns. By setting a smoke guide hood on the bottom plate and setting a partition plate on the support ring above the smoke guide hood, and opening smoke exhaust holes in the partition plate, the spray assembly in the smoke exhaust holes cooperates with the liquid inlet ring pipe and the liquid guide pipe to perform wet dust removal on the flue gas passing through the smoke exhaust holes when the chimney is venting. Under the drive of a waterproof dual-shaft motor, the upper fan blades are driven to exhaust the smoke, while the spiral blades are used to transport the sprayed ash water vapor downwards, which facilitates the dust removal and discharge of the flue gas.

[0017] 2. By setting up a preheating component, when supplying liquid to the spraying mechanism, the preheating component is used to heat the water being transported using the waste heat of the flue gas. This allows the spraying mechanism to accelerate the atomization and evaporation of the liquid, making it easier for the liquid to come into full contact with the small particles of flue gas in the chimney, thereby improving the dust removal effect. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the dust removal device for brick kilns provided by this utility model;

[0019] Figure 2 A schematic diagram of the axial cross-section of the dust removal device for brick kilns provided by this utility model;

[0020] Figure 3 A schematic diagram of the structure in which a spraying mechanism is installed on the base plate and support ring provided by this utility model;

[0021] Figure 4 for Figure 3 A magnified view of part A shown.

[0022] Numbered in the diagram: 1. Chimney; 101. Observation window; 2. Smoke pipe; 3. Base plate; 31. Drain pipe; 4. Smoke hood; 41. Filter screen; 401. Water guide groove; 5. Support ring; 6. Waterproof dual-shaft motor; 61. Long shaft; 62. Fan blade; 63. Short shaft; 64. Spiral blade; 601. Air guide hole; 7. Partition plate; 701. Smoke exhaust hole; 8. Spraying mechanism; 81. Spraying assembly; 811. Spraying ring; 812. Atomizing nozzle; 82. Liquid inlet ring pipe; 83. Liquid guide pipe; 9. Preheating assembly; 91. Spiral heat exchanger tube; 92. Liquid inlet pipe; 93. Ceramic heat storage column; 94. Insulation layer. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] Please see Figures 1 to 4 This utility model provides a dust removal device specifically for brick kilns, which includes:

[0026] Chimney 1, and flue 2 installed on one side of the bottom end of chimney 1;

[0027] The base plate 3 is installed at the bottom of the chimney 1 and seals the bottom of the chimney 1. A smoke guide hood 4 is installed at the top of the base plate 3. A filter screen 41 is fixedly installed at the top of the smoke guide hood 4, and the middle part of the smoke guide hood 4 is aligned with the smoke outlet of the flue 2.

[0028] A support ring 5 is installed inside the chimney 1 and above the filter screen 41. A waterproof dual-shaft motor 6 is installed in the middle of the support ring 5. The upper end of the waterproof dual-shaft motor 6 is connected to a long shaft 61. A fan blade 62 is fixedly installed at the top of the long shaft 61. The lower end of the waterproof dual-shaft motor 6 is connected to a short shaft 63. A spiral blade 64 is fixedly installed on the short shaft 63. Several partition plates 7 are installed on the support ring 5. Several exhaust holes 701 are opened on the partition plates 7. A spray mechanism 8 is installed in the exhaust holes 701. The spray mechanism 8 includes a spray assembly 81 set in the exhaust holes 701. The spray assembly 81 is connected to a liquid inlet ring pipe 82. The liquid inlet ring pipe 82 is fixedly installed on the support ring 5. A liquid guide pipe 83 is connected to the liquid inlet ring pipe 82. One end of the liquid guide pipe 83 passes through the chimney 1 and is connected to a preheating assembly 9.

[0029] The spray assembly 81 includes a spray ring 811, which is embedded in the smoke exhaust hole 701. A plurality of atomizing nozzles 812 are evenly installed on the inner side wall of the spray ring 811. The spray ring 811 is connected to the liquid inlet ring pipe 82 through a conduit.

[0030] The preheating component 9 includes a spiral heat exchange tube 91, which is fixedly sleeved on the outer wall of the flue 2. One end of the spiral heat exchange tube 91 is connected to the liquid guide tube 83 through a conduit, and the other end of the spiral heat exchange tube 91 is connected to the liquid inlet tube 92. A ceramic heat storage column 93 is fixedly installed on the spiral heat exchange tube 91, and an insulation layer 94 is fixedly sleeved on the ceramic heat storage column 93.

[0031] It should be noted that during use, the inlet pipe 92 is connected to the external liquid supply system, the waterproof dual-shaft motor 6 is connected to the external control power supply via a high-temperature and corrosion-resistant cable, and the flue pipe 2 is connected to the exhaust port of the brick kiln. After connection, during the production process of the brick kiln, the spray liquid is delivered to the liquid pipe 83 through the external liquid supply system via the inlet pipe 92 and the spiral heat exchange pipe 91. During the delivery process, the heat exchange and heat conduction of the spiral heat exchange pipe 91 and the ceramic heat storage column 93 are used to preheat the spray liquid with the heat from the flue pipe 2, which facilitates a higher water temperature of the spray liquid during spraying, enabling rapid atomization and evaporation, and adsorbing dust in the flue gas. The spray liquid is introduced into the spray ring 811 through the inlet ring pipe 82, and then sprayed onto the exhaust port 701 through the atomizing nozzle 812. In this way, the waterproof dual-shaft motor 6 drives the long shaft 61 to drive the fan blade 62. The rotating mechanism draws the flue gas from the bottom of the chimney 1 through the flue pipe 2 upwards. During this process, the flue gas passes through the exhaust port 701, where the atomizing nozzle 812 sprays the flue gas to remove dust. The atomized water droplets adsorb the particles in the flue gas emitted from the brick kiln. The water droplets, now heavy with dust, automatically drip from the exhaust port 701, completing the dust removal and purification of the flue gas. The purified flue gas is discharged from the top of the chimney 1. The trapped dust and atomized water droplets drip onto the spiral blades 64. When the waterproof dual-shaft motor 6 drives the short shaft 63 to rotate, it drives the spiral blades 64 to rotate synchronously. The liquid sprayed from the atomizing nozzle 812 is transported downwards along the direction of rotation of the spiral blades 64. After being filtered by the filter screen 41, the ash water (liquid containing dust particles) is discharged from the inner cavity of the smoke guide hood 4.

[0032] In the embodiments of this utility model, please refer to Figures 1 to 4 The bottom end of the base plate 3 is connected to a drain pipe 31, and the end of the drain pipe 31 facing away from the base plate 3 passes through the chimney 1 and is exposed.

[0033] It should be noted that when the chimney 1 is venting smoke and removing dust, the ash water after spraying dust removal automatically flows into the bottom plate 3, and then is discharged from the drain pipe 31. When discharged, the drain pipe 31 can be connected to the ash water separator, and the recovered dust can be directly used for pelletizing, realizing water recycling and eliminating secondary pollution.

[0034] In the embodiments of this utility model, please refer to Figures 1 to 4 Several air guide holes 601 are evenly opened on the spiral blade 64;

[0035] It should be noted that when the spiral blades 64 are used to transport the dripping ash water downwards, the flue gas is guided by the air guide holes 601, which facilitates the upward transport and discharge of the flue gas and avoids smoke blockage.

[0036] In the embodiments of this utility model, please refer to Figures 1 to 4 The bottom of the smoke hood 4 is provided with several water guide grooves 401;

[0037] It should be noted that the smoke hood 4 is narrow in the middle and flared at both ends. When the smoke pipe 2 discharges smoke towards the middle of the smoke hood 4, the smoke can be discharged upwards along the perimeter of the smoke hood 4. Then, when the dripping ash water flows from the outer wall of the smoke hood 4 into the base plate 3, it automatically flows into the middle of the base plate 3 through several water guide grooves 401, making it easy to be discharged from the drain pipe 31. Furthermore, the base plate 3 is high on both sides and low in the middle, which makes it easy to collect the ash water in the middle of the base plate 3.

[0038] In the embodiments of this utility model, please refer to Figures 1 to 4 An observation window 101 is provided on one side of the chimney 1;

[0039] It should be noted that this allows for observation of the interior of chimney 1 through the observation window 101, and also allows for inspection and maintenance of the interior of chimney 1 during later maintenance.

[0040] The working principle of the dust removal device for brick kilns provided by this utility model is as follows:

[0041] During the production operation of the brick kiln, the spray liquid is delivered to the guide pipe 83 through an external liquid supply system via the liquid inlet pipe 92 and the spiral heat exchange pipe 91. During the delivery process, the spiral heat exchange pipe 91 and the ceramic heat storage column 93 are used to preheat the spray liquid with the heat from the flue pipe 2, which helps to increase the water temperature of the spray liquid during spraying, facilitating rapid atomization and evaporation, and adsorbing dust in the flue gas. The spray liquid is introduced into the spray ring 811 through the liquid inlet ring pipe 82, and then sprayed onto the exhaust port 701 through the atomizing nozzle 812. In this way, the waterproof dual-shaft motor 6 drives the long shaft 61 to rotate the fan blade 62, drawing the flue gas discharged from the bottom of the chimney 1 from the flue pipe 2 upwards. During the suction and exhaust process, the flue gas exits from the exhaust port 701. After the atomizing nozzle 812 in the exhaust port 701 sprays the flue gas to remove dust, the particles in the flue gas are adsorbed by the atomized water droplets. Then, the water droplets with adsorbed dust become heavier and automatically drip from the exhaust port 701, thus completing the dust removal and purification of the flue gas. The purified flue gas is discharged from the top of the chimney 1. The trapped dust and atomized water droplets drip onto the spiral blades 64. When the waterproof dual-shaft motor 6 drives the short shaft 63 to rotate, it drives the spiral blades 64 to rotate synchronously. The liquid sprayed by the atomizing nozzle 812 is transported downward along the direction of rotation of the spiral blades 64. After being filtered by the filter screen 41, the ash water (liquid containing dust particles) is discharged from the inner cavity of the smoke guide hood 4.

[0042] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dust removal device specifically for brick kilns, comprising: Chimney (1), and flue (2) installed on one side of the bottom end of the chimney (1); Its characteristic is that it further includes: The base plate (3) is installed at the bottom of the chimney (1) and seals the bottom of the chimney (1). A smoke guide hood (4) is installed at the top of the base plate (3). A filter screen (41) is fixedly installed at the top of the smoke guide hood (4). The middle part of the smoke guide hood (4) is aligned with the smoke outlet of the flue (2). A support ring (5) is installed inside the chimney (1) and above the filter screen (41). A waterproof dual-axis motor (6) is installed in the middle of the support ring (5). A long shaft (61) is connected to the upper end of the waterproof dual-axis motor (6). A fan blade (62) is fixedly installed at the top end of the long shaft (61). A short shaft (63) is connected to the bottom end of the waterproof dual-axis motor (6). A spiral blade (64) is fixedly installed on the short shaft (63). Several partition plates (7) are installed on the support ring (5). The partition (7) has several exhaust holes (701), and a spraying mechanism (8) is installed in the exhaust holes (701). The spraying mechanism (8) includes a spraying component (81) disposed in the several exhaust holes (701). The spraying component (81) is connected to a liquid inlet ring pipe (82). The liquid inlet ring pipe (82) is fixedly installed on the support ring (5), and a liquid guide pipe (83) is connected to the liquid inlet ring pipe (82). One end of the liquid guide pipe (83) passes through the chimney (1) and is connected to a preheating component (9).

2. The dust removal device for brick kilns according to claim 1, characterized in that, The spray assembly (81) includes a spray ring (811), which is embedded in the exhaust hole (701), and a plurality of atomizing nozzles (812) are evenly installed on the inner side wall of the spray ring (811). The spray ring (811) is connected to the liquid inlet ring pipe (82) through a conduit.

3. The dust removal device for brick kilns according to claim 1, characterized in that, The preheating component (9) includes a spiral heat exchange tube (91), which is fixedly sleeved on the outer wall of the flue (2). One end of the spiral heat exchange tube (91) is connected to the liquid guide tube (83) through a conduit, and the other end of the spiral heat exchange tube (91) is connected to the liquid inlet tube (92). A ceramic heat storage column (93) is fixedly installed on the spiral heat exchange tube (91), and an insulation layer (94) is fixedly sleeved on the ceramic heat storage column (93).

4. The dust removal device for brick kilns according to claim 1, characterized in that, The bottom end of the base plate (3) is connected to a drain pipe (31), and the drain pipe (31) is exposed outside the chimney (1) at the end away from the base plate (3).

5. The dust removal device for brick kilns according to claim 1, characterized in that, Several air guide holes (601) are evenly opened on the spiral blade (64).

6. The dust removal device for brick kilns according to claim 1, characterized in that, The bottom of the smoke hood (4) is provided with several water guide grooves (401).

7. The dust removal device for brick kilns according to claim 1, characterized in that, An observation window (101) is provided on one side of the chimney (1).

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