Heating-free anti-blocking device for dust hopper of dust remover

Abstract

The invention relates to the technical field of dust remover ash buckets, in particular to a dust remover ash bucket heating-free anti-blocking device which comprises an ash bucket box, a dust charge quantity detection and control sensor is installed on the outer side face of the ash bucket box in a penetrating mode, and an accident unblocking mechanism for removing hardened materials in the ash bucket box is installed on the ash bucket box. A fluidizing air treatment mechanism for separating fluidizing air into negative ions is mounted in the ash bucket box in a penetrating manner, and an air blowing mechanism capable of movably blowing out the fluidizing air is mounted at one end, positioned in the ash bucket box, of the fluidizing air treatment mechanism. When the air blowing mechanism moves, fluidizing air can be blown into the ash bucket box from multiple moving directions, so that the fluidizing air can be mixed with materials of all parts, when the air conveying cylinders distributed at the four corners of the ash bucket box swing to spray air through the air outlet spray heads, air can be fully blown to the inner side part of the ash bucket box at certain angles, and the air blowing efficiency is improved. And fluidization wind with negative ions can be in full contact with internal materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust collector ash hoppers, in particular to a dust collector ash hopper heating-free anti-blocking device. BACKGROUND

[0002] Ash hopper wall sticking: after the fly ash enters the ash hopper, it is carried by the fluidizing wind. The fly ash close to the ash hopper wall is easily adhered due to the low wall temperature and the iron grounding of the ash hopper, forming condensation and hardening to cause ash sticking on the ash hopper wall. The reasons for dust clumping are: abnormal electric heating, low temperature, condensation and clumping, shell air leakage, reduced temperature, condensation and clumping, low-temperature corrosion of the shell when flue gas condenses, low-temperature economizer, flue gas denitrification, and the like. After energy-saving and environmental protection modification, the negative effects of reducing flue gas temperature, reducing the temperature of accumulated ash, and reducing the flowability of fly ash, the condensation and clumping of fly ash are accelerated. The humidity of fly ash is increased due to leakage of the low-temperature economizer, and the flowability of fly ash is reduced due to low acid dew point and viscosity of fly ash, causing sticking.

[0003] The current methods to solve this problem are to heat and insulate the periphery of the ash hopper wall (mainly steam heating and electric heating), maintain high temperature of the ash hopper wall, and prevent the formation of condensation and hardening.

[0004] Chinese patent CN222196268U discloses a dust collector ash hopper heating-free anti-blocking device, which comprises a dust collector ash hopper anti-blocking device and a vibration anti-blocking device. A working cavity is formed in the dust collector ash hopper anti-blocking device. An inlet and an outlet are respectively formed on the two sides of the dust collector ash hopper anti-blocking device. An ion generator is fixed in the working cavity. Sulfurized wind enters through the inlet. The vibration anti-blocking device comprises a bracket detachably connected to the outer wall of the ash hopper and a vibrating member. A spring is fixed between the vibrating member and the bracket. The spring tightly presses the vibrating member against the outer wall of the ash hopper. An arc-shaped track is provided on one end of the driving member. The angle between the highest point and the lowest point of the arc-shaped track forms a gap. The highest point is vertically arranged to the outer wall of the ash hopper, so that the vibrating member is separated from the arc-shaped track and hits the outer wall of the ash hopper under the action of the spring force. The utility model has the advantages of simple structure. The fluidizing wind with negative ion charge is used to make the dust particles collide with the negative ions to increase the repulsive force between the dust particles, strengthen the dispersion, and prevent the dust particles from sticking together. The above-mentioned related technology has the following defects: the angle of the fluidizing wind with negative ion charge in the prior art is fixed when it is filled into the ash hopper. Therefore, the fluidizing wind cannot fully contact and mix with the materials in each part of the ash hopper. Therefore, a dust collector ash hopper heating-free anti-blocking device is proposed. SUMMARY

[0005] In order to make the fluidizing wind blown into the ash hopper contact and mix with the materials at each position, the present application provides a dust collector ash hopper heating-free anti-blocking device.

[0006] The application provides a dust collector ash bucket anti-blocking device without heating, which adopts the following technical scheme: an ash bucket box is provided with a dust charge amount detection and control sensor penetratingly installed on the outer side, an accident unblocking mechanism for removing the agglomerated material in the ash bucket box is installed on the ash bucket box, and a fluidized wind treatment mechanism for ionizing fluidized wind into negative ions is penetratingly installed on the ash bucket box.

[0007] Optionally, the ash bucket box is provided with a large upper end and a small lower end, and the inner wall of the ash bucket box is coated with a special nano coating.

[0008] Optionally, the accident unblocking mechanism is provided with at least two, and the plurality of accident unblocking mechanisms are evenly distributed along the circumferential direction of the ash bucket box.

[0009] Optionally, the accident unblocking mechanism is a pulse unblocking device, and the pulse unblocking device penetrates the outer surface of the ash bucket box.

[0010] Optionally, the accident unblocking mechanism is a vibration motor, and the vibration motor is installed on the outer side of the ash bucket box, and the vibration end of the vibration motor is in contact with the ash bucket box.

[0011] Optionally, the air blowing mechanism comprises a center end pipe, and the lower end of the center end pipe is in communication with the fluidized wind treatment mechanism.

[0012] A gas conveying cylinder is rotatably inserted into each corner of the ash bucket box, a power control mechanism for controlling the swinging of the gas conveying cylinder is installed on the outer side of the ash bucket box, a bent air pipe is rotatably inserted into the lower end of the gas conveying cylinder, the ash bucket box is fixedly sleeved on the outer surface of the bent air pipe, and the bent air pipe is in communication with the upper end of the center end pipe.

[0013] A plurality of exhaust structures are in communication with the side of the gas conveying cylinder close to the central axis of the ash bucket box.

[0014] Optionally, the power control mechanism comprises two double-end frames, the ash bucket box is slidably sleeved on the two ends of the double-end frame, the double-end frame can move up and down relative to the ash bucket box, a bent rod is coaxially installed on the upper end of the gas conveying cylinder, the ash bucket box is rotatably sleeved on the outer surface of the bent rod, the bent rod can be elastically rotated relative to the ash bucket box, and the bent rod is bent away from the central axis of the ash bucket box.

[0015] A vertical rod is arranged on each side of the bent rod, the lower end of the vertical rod is fixed to the adjacent double-end frame on the lower side, and a plurality of pushing blocks are fixed to the side of the vertical rod close to the bent rod.

[0016] Optionally, the plurality of exhaust structures connected with the same gas conveying cylinder are evenly distributed at equal distances.

[0017] The exhaust structure comprises an air outlet nozzle and a plug, the plug is located in the air outlet nozzle, and the plug is elastically connected with the air outlet nozzle.

[0018] Optionally, the plug is small in diameter near one end of the air transmission cylinder, and the air outlet nozzle is spherical and air-permeable away from the air transmission cylinder.

[0019] The air outlet nozzle is larger in inner diameter at the plug part than at both ends, and the maximum outer diameter of the air outlet nozzle is smaller than the maximum inner diameter of the air outlet nozzle.

[0020] Optionally, the upper and lower sides of the pushing block are both arc surfaces, the pushing blocks on both sides of the same bending rod are distributed in a staggered manner, and the maximum distance between the pushing block and the connected vertical rod is greater than half the distance between the vertical rods on both sides of the same bending rod.

[0021] In summary, the present application has the following beneficial technical effects: The blowing mechanism can blow the fluidizing air from multiple directions into the ash hopper box when the blowing mechanism is moving, so that the fluidizing air can mix with the materials in each part.

[0022] The pushing block, vertical rod, bending rod, and air transmission cylinder are provided, the double-end frame driven by power moves the connected pushing block up and down, the pushing blocks on both sides of the bending rod are alternately in contact with the bending rod, the bending rod is pushed to reciprocate, the air transmission cylinder and the air outlet nozzle are driven to reciprocate in the ash hopper box when the bending rod rotates, and the air transmission cylinders distributed at the four corners of the ash hopper box can fully blow air to the inside of the ash hopper box when they swing and blow air through the air outlet nozzle, so that the fluidizing air with negative ions can fully contact the materials inside.

[0023] The plug and the air outlet nozzle are provided, the elastic connection between the plug and the air outlet nozzle has a tendency to block the air outlet nozzle, the powder is prevented from entering the air transmission cylinder when the air outlet nozzle does not blow air, the plug moves to the side away from the air transmission cylinder under the action of air pressure when the air transmission cylinder is filled with air, so that the airflow can pass through the gap between the inside of the plug and the air outlet nozzle, and then the airflow is dispersed from the spherical air-permeable end of the air outlet nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application. Figure 2 It is a schematic diagram of the structure of the rapping motor connected with the ash hopper box in the embodiment of the present application. Figure 3 It is a schematic diagram of the structure of the double-end frame connected with the vertical rod in the embodiment of the present application. Figure 4 It is a schematic diagram of the structure of the air transmission cylinder connected with the central end pipe in the embodiment of the present application. Figure 5This is a top view of the structure in an embodiment of the present invention; Figure 6 This is a schematic diagram of the connection between the actuating block and the upright in an embodiment of the present invention; Figure 7 This is a schematic diagram of some structural tests in an embodiment of the present invention; Figure 8 This is a schematic diagram of the connection between the bent rod and the air transmission cylinder in an embodiment of the present invention; Figure 9 This is an embodiment of the present invention. Figure 8 Enlarged schematic diagram of the structure at point A in the middle.

[0025] Reference numerals: 1. Ash hopper; 2. Dust charge detection and control sensor; 3. Fluidized air treatment mechanism; 4. Air blowing mechanism; 41. Central end pipe; 42. Air transmission cylinder; 43. Power control mechanism; 431. Double-head frame; 432. Bending rod; 433. Upright pole; 434. Actuating block; 44. Bending vent pipe; 45. Exhaust structure; 451. Air outlet nozzle; 452. Plug; 5. Pulse unblocking device; 6. Vibrating motor. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-9 The present invention will be described in further detail below.

[0027] This invention discloses a heat-free anti-clogging device for the dust collector hopper. For example... Figures 1-9 As shown, the device includes an ash hopper 1, which is wider at the top and narrower at the bottom. The inner wall of the ash hopper 1 is coated with a special nano-coating, which is a high-molecular nanomaterial prepared by heterogeneous ternary copolymer emulsion polymerization. The nano-coating has a particle size of 40-80 nm and a length of 2-3 μm, increasing the metal corrosion potential by 223 mV and forming a dense electrical network structure on the metal surface, thereby raising the corrosion threshold and preventing dust from contacting the ash hopper wall.

[0028] Insulation properties of nanomaterials: With a coating thickness of 400µm, it withstands a voltage of 50KV; High wear resistance: The material uses ionic compounds and some artificially synthesized covalent compounds, resulting in high strength and rigidity, effectively resisting high-speed impacts; Corrosion resistance: The material uses inert materials with acid and alkali resistance, ensuring stable performance of the nanomaterials and effectively resisting environmental media and various chemical corrosions; Intrinsic anti-sticking properties: Below the acid dew point, the nanomaterials can prevent sticky dust from adhering to the inner wall of the ash hopper box 1, effectively preventing the penetration of moisture, grease, etc., keeping the material dry at all times and improving its service life.

[0029] The dust charge amount detection and control sensor 2 is installed through the outer side of the ash bucket 1, detects the internal charge, and is not affected by external factors such as environment and pressure, has high stability, and has a high wear-resistant alloy material sensor probe, does not need to be purged, is maintenance-free, and is designed for ash bucket anti-blocking.

[0030] The dust charge amount detection and control sensor 2 has a measurement accuracy of 2.5%, a measurement range of -500vc to 0, a sensor quantity of one group, an applicable medium temperature range of 0-600℃, a probe material of high wear-resistant alloy material, and a protection level of IP68.

[0031] The ash bucket 1 is provided with an accident unblocking mechanism for removing the internal hardened material of the ash bucket 1.

[0032] The accident unblocking mechanism is at least provided with two, and multiple accident unblocking mechanisms are evenly distributed around the ash bucket 1 axis.

[0033] As shown in Figure 1 , the accident unblocking mechanism is a pulse unblocking device 5, which penetrates the outer surface of the ash bucket 1. The pulse unblocking system can automatically run and automatically control the pulse unblocking system by detecting data from the charge detection sensor, and can ensure that the ash bucket 1 is unblocked and does not produce secondary dust. The pulse unblocking system has automatic control functions of unblocking frequency, unblocking time, and unblocking strength.

[0034] As shown in Figure 2 , the accident unblocking mechanism is a vibration motor 6, which is installed on the outer side of the ash bucket 1. The vibration end of the vibration motor 6 is in contact with the ash bucket 1. The vibration motor 6 is started by a timing starting device to clean the ash bucket 1 wall, eliminate the arching and wall sticking phenomenon of the ash bucket 1, and ensure that the ash bucket 1 is unblocked. The unblocking frequency and unblocking strength can be adjusted, and the structure is simple, easy to maintain, and low in operation cost. The vibration motor 6 can protect the wall of the ash bucket 1 from being damaged by the unblocking force.

[0035] In the accident state, the accident unblocking mechanism is started to clean the ash bucket 1 wall and eliminate the arching and wall sticking phenomenon of the ash bucket 1.

[0036] The ash bucket 1 is provided with a heat preservation interlayer on the inner side, which can effectively reduce the heat loss of the internal material.

[0037] The ash bucket 1 is provided with a fluidizing air treatment mechanism 3 for ionizing the fluidizing air into negative ions.

[0038] The fluidizing air treatment mechanism 3 comprises a fluidizing air supply pipe and a fluidizing air treatment mechanism 3, and the fluidizing air supply pipe and the fluidizing air treatment mechanism 3 are connected.

[0039] The fluidizing air treatment mechanism 3 comprises a fluidizing air supply pipe and a fluidizing air treatment mechanism 3, and the fluidizing air supply pipe and the fluidizing air treatment mechanism 3 are connected.

[0040] The fluidizing air treatment mechanism 3 comprises a fluidizing air supply pipe and a fluidizing air treatment mechanism 3, and the fluidizing air supply pipe and the fluidizing air treatment mechanism 3 are connected.

[0041] The fluidizing air treatment mechanism 3 comprises a fluidizing air supply pipe and a fluidizing air treatment mechanism 3, and the fluidizing air supply pipe and the fluidizing air treatment mechanism 3 are connected.

[0042] The fluidizing air treatment mechanism 3 comprises a fluidizing air supply pipe and a fluidizing air treatment mechanism 3, and the fluidizing air supply pipe and the fluidizing air treatment mechanism 3 are connected.

[0043] The fluidizing air treatment mechanism 3 comprises a fluidizing air supply pipe and a fluidizing air treatment mechanism 3, and the fluidizing air supply pipe and the fluidizing air treatment mechanism 3 are connected.

[0044] The power control mechanism 43 is installed outside the ash bucket 1 to control the swing of the air transmission cylinder 42. The power control mechanism 43 includes two double-end frames 431, and the ash bucket 1 is slidingly sleeved at the two ends of the double-end frame 431. The double-end frame 431 can be moved up and down relative to the ash bucket 1 by power. A power telescopic rod is installed outside the ash bucket 1 to control the up-and-down movement of the double-end frame 431. Alternatively, a threaded rod that can be power-driven is provided to engage with the double-end frame 431 to drive the double-end frame 431 to move up and down. The power telescopic rod can be a hydraulic cylinder or an electric telescopic rod. The air transmission cylinder 42 is coaxially provided with a bending rod 432 at the upper end. The ash bucket 1 is rotatably sleeved on the outer surface of the bending rod 432. The bending rod 432 can be elastically rotated relative to the ash bucket 1. The bending rod 432 is bent away from the axis of the ash bucket 1.

[0045] The two sides of the bending rod 432 are provided with vertical rods 433, and the two vertical rods 433 are parallel. The lower end of the vertical rod 433 is fixed to the adjacent lower double-end frame 431. A plurality of push blocks 434 are fixed to one side of the vertical rod 433 close to the bending rod 432. The upper and lower sides of the push block 434 are arc surfaces. The push blocks 434 connected to the surfaces of the vertical rods 433 on the same side of the bending rod 432 are distributed in a staggered manner. The maximum distance between the push block 434 and the vertical rod 433 connected thereto is greater than half the distance between the vertical rods 433 on the same side of the bending rod 432. The space trajectory formed between the plurality of push blocks 434 on the same side of the bending rod 432 is reciprocatingly curved. The width of the space trajectory formed between the plurality of push blocks 434 is greater than the diameter of the bending rod 432, so that the bending rod 432 can smoothly move in the space trajectory formed by the plurality of push blocks 434. When the vertical rod 433 moves up and down with the double-end frame 431, the push block 434 moves synchronously with the vertical rod 433. The bending rod 432 is in contact with the push block 434 moving up and down and is subjected to force, so as to drive the bending rod 432 and the air transmission cylinder 42 to swing. The swing range of the bending rod 432 and the air transmission cylinder 42 driven by the push block 434 is between the included angle formed by the adjacent inner walls of the ash bucket 1.

[0046] The exhaust structure 45 comprises a gas outlet nozzle 451 and a plug 452, the plug 452 is located inside the gas outlet nozzle 451, the plug 452 is elastically connected with the gas outlet nozzle 451, the plug 452 is arranged with a small diameter near one end of the air conveying cylinder 42, the gas outlet nozzle 451 is arranged with a spherical shape far away from one end of the air conveying cylinder 42, the gas flow sprayed from the spherical gas outlet nozzle 451 is dispersed, the range of the gas flow activity is increased, the inner diameter of the gas outlet nozzle 451 at the position of the plug 452 is larger than the inner diameters of two ends of the gas outlet nozzle 451, the maximum outer diameter of the gas outlet nozzle 451 is smaller than the maximum inner diameter of the gas outlet nozzle 451, the small diameter end of the plug 452 is larger than the small diameter end of the gas outlet nozzle 451, the plug 452 is elastically connected with the gas outlet nozzle 451, the plug 452 blocks the small end of the gas outlet nozzle 451, when the gas flow pushes the plug 452 to move to the large diameter end of the gas outlet nozzle 451, the gas flow can flow through the gap between the gas outlet nozzle 451 and the plug 452.

[0047] The air conveying cylinder 42 is rotatably inserted with the bent air pipe 44 at the lower end, the hopper box 1 is fixedly sleeved on the outer surface of the bent air pipe 44, the bent air pipe 44 is installed in communication with the upper end of the center end pipe 41, and the fluidization wind treatment mechanism 3 fills air into the air conveying cylinder 42 through the center end pipe 41 and the bent air pipe 44.

[0048] The working principle is that: after the material enters from the upper end of the hopper box 1, the dust charge detection and control sensor 2 detects the internal charge, the accident cleaning mechanism is started in the accident state, the accident cleaning mechanism performs the ash removal operation on the wall of the hopper box 1, and the existing arching and wall sticking of the hopper box 1 are eliminated, the fluidization wind treatment mechanism 3 fills the fluidization wind ionized as negative ions into the air blowing mechanism 4 in communication therewith, and the fluidization wind can be blown into the hopper box 1 from multiple active directions when the air blowing mechanism 4 is active, so that the fluidization wind can be mixed with the material in each part, and the probability of internal material caking is reduced.

[0049] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A dust cleaner ash bucket anti-blocking device without heating, comprising an ash bucket box (1), characterized in that: The dust charge amount detection and control sensor (2) is installed through the outer side of the ash bucket (1), the ash bucket (1) is provided with an accident unblocking mechanism for removing the hardened material in the ash bucket (1), the ash bucket (1) is provided with a fluidization wind treatment mechanism (3) for ionizing the fluidization wind into negative ions, and the fluidization wind treatment mechanism (3) is provided with a blowout mechanism (4) for blowout of the fluidization wind at one end in the ash bucket (1).

2. The dust collector ash hopper anti-blocking device without heating according to claim 1, characterized in that: The ash bucket (1) is provided with a special nano coating on the inner wall.

3. The dust collector ash hopper anti-clogging device of claim 1, wherein: The accident unblocking mechanism is provided with at least two, and the plurality of accident unblocking mechanisms are evenly distributed along the axis of the ash bucket (1).

4. The dust collector ash hopper anti-clogging device of claim 3, wherein: The accident unblocking mechanism is a pulse unblocking device (5) penetrating through the outer surface of the ash bucket (1).

5. The dust collector ash hopper anti-clogging device of claim 3, wherein: The accident unblocking mechanism is a vibration motor (6) installed on the outer side of the ash bucket (1), and the vibration end of the vibration motor (6) is in contact with the ash bucket (1).

6. The dust collector hopper anti-clogging device without heating according to claim 1, characterized in that: The blowout mechanism (4) comprises a center end pipe (41) which is in communication with the fluidization wind treatment mechanism (3) at the lower end. The ash bucket (1) is provided with a gas transmission cylinder (42) rotatably inserted at the four corners, a power control mechanism (43) is installed on the outer side of the ash bucket (1) for controlling the swing of the gas transmission cylinder (42), a bent air pipe (44) is rotatably inserted at the lower end of the gas transmission cylinder (42), the ash bucket (1) is fixedly sleeved on the outer surface of the bent air pipe (44), and the bent air pipe (44) is in communication with the upper end of the center end pipe (41). The gas transmission cylinder (42) is provided with a plurality of exhaust structures (45) in communication with the side close to the center axis of the ash bucket (1).

7. The dust collector ash hopper anti-clogging device of claim 6, wherein: The power control mechanism (43) comprises two double-end frames (431), the ash bucket (1) is slidably sleeved on the two ends of the double-end frame (431), the double-end frame (431) can move up and down relative to the ash bucket (1) by power, a bent rod (432) is coaxially installed at the upper end of the gas transmission cylinder (42), the ash bucket (1) is rotatably sleeved on the outer surface of the bent rod (432), the bent rod (432) can be elastically rotated relative to the ash bucket (1), and the bent rod (432) is bent away from the axis of the ash bucket (1). The bent rod (432) is provided with a vertical rod (433) on both sides, the lower end of the vertical rod (433) is fixed to the adjacent lower double-end frame (431), and a plurality of shifting blocks (434) are fixed to the side close to the bent rod (432) of the vertical rod (433).

8. The dust collector ash hopper anti-clogging device of claim 6, wherein: The plurality of exhaust structures (45) connected with the same gas transmission cylinder (42) are evenly distributed at equal distances. The exhaust structure (45) comprises an air outlet nozzle (451) and a plug (452), the plug (452) is located in the air outlet nozzle (451), and the plug (452) is elastically connected with the air outlet nozzle (451).

9. The dust collector ash hopper anti-clogging device of claim 8, wherein: The plug (452) is provided with a small diameter at one end close to the gas transmission cylinder (42), and the air outlet nozzle (451) is provided with a spherical shape at one end away from the gas transmission cylinder (42). The gas outlet nozzle (451) is arranged in the plug (452) part, the inner diameter of which is larger than that of both ends, the maximum outer diameter of the gas outlet nozzle (451) is smaller than the maximum inner diameter of the gas outlet nozzle (451), and the small-diameter end of the plug (452) is larger than the small-diameter end of the gas outlet nozzle (451).

10. The dust collector ash hopper anti-clogging device of claim 7, wherein: The two sides of the dial block (434) are both circular arc surfaces, the dial blocks (434) connected to the surfaces of the vertical rods (433) on both sides of the same bending rod (432) are distributed in an up-down staggered manner, and the maximum distance between the dial block (434) and the connected vertical rod (433) is greater than half the distance between the vertical rods (433) on both sides of the same bending rod (432).

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